fukui safety valve quotation

SL / SJ Series is a safety valve for steam service of boiler which is getting higher temperature and pressure year after year for advancing power generation efficiency. This series have been approved by the National Board of Boiler and Pressure Vessel Inspectors as meets all of demanding requirements from ASME Boiler and Pressure Vessel Code Section I Power Boiler. In addition, it meets with domestic and foreign regulations such as technical standard for thermal power generation and CE mark.

Safety valve is a valve that act as a protection of equipment from exploding or damaging and it is mainly installed in pressure vessels such as chemical plants, electric power boilers and gas storage tanks.

Safety Valve is a type of valve that automatically actuates when the pressure of inlet side of the valve increases to a predetermined pressure, to open the valve disc and discharge the fluid (steam or gas ) ; and when the pressure decreases to the prescribed value, to close the valve disc again. Safety valve is so-called a final safety device which controls the pressure and discharges certain amount of fluid by itself without any electric power support.

Pilot-operated Pressure-relief Valves have larger size variations compared to Spring-loaded type, which is applied in a severe condition such as high pressure.

The Vacuum relief valve has been adopting this functional characteristic which absorbs the pressure when the inside of the pressure vessel falls into a negative pressure.

This page lists the ApprovedPressure and Safety Relief ValveManufacturers (vendors), also provides inspection and test advice to thePressure and Safety Relief Valvepurchasers buying from vendors, suppliers and distributors.

SVS Valves was established in the early 2008. Since inception we have expanded significantly in technical pool, expertise and capabilities to service and test all types of valves; as well as providing engineering solutions on valve related problems.

SVS Valves team specializes in servicing Safety Relief Valves, LPG/LNG Cargo Tank Valves, Control Valves and Actuated On/Off Ball Valves. Our engineers and technicians are well-trained and experienced to repair and test Fukui, Anderson Greenwood, Crosby, FMC-Luceat, Consolidated, Leser & Farris Safety Valves as well as Masoneilan, Motoyama, and Yamatake Control Valves. At the same time, our engineers and technicians have a sound fundamental knowledge and experience which enable them to be cross-trained to perform repair and reconditioning works across a broad spectrum of valve types, brands and models.

SVS Valves team has built a substantial client base, focusing on the Oil & Gas, Petrochemical and Marine & Offshore industries. Our technical pool has a vast collective experience of over 50 years in these industries. This has created a robust intangible value for the company that can be effectively leveraged by any external business partners, plant owners or valve manufacturers. We have been rigorously audited and appointed as the authorized repair and testing facility for the following manufacturers FUKUI SEISAKUSHO CO. LTD (Safety Valves), LESER GmbH (Safety Valves), KLINGER SCHONEBERG (Ball Valves) and TIV VALVES S.r.l (Ball Valves). We are also experienced in providing support services in the areas of repair, refurbishment and integrity testing for the various (OEM) brands of ball valves under Cameron in Singapore.

SVS Valves Pte. Ltd. entity is a SAC-SINGLAS Accredited testing laboratory for performing tests on a broad spectrum of valve types such as safety relief, pilot operated safety relief, pressure vacuum, control, on-off actuated and manual valves (gate, globe, check, ball and butterfly) in accordance with international standards. We can issue endorsed test certificates for all of these valves.

Overview of the RE series RE series safety valves are low-cost valves realized by the technology, experience and know-how in designing and manufacturing safety valves that Fukui Seisakusho Co., Ltd. has accumulated over half a century, and they therefore meet a variety of customers’ needs for safety pressure relief. Furthermore, RE series safety valves can handle various fluids including steam, gas and liquid, thus finding wide and popular use in general plants, electric power generation plants, storage facilities and many others. They also boast of the UV stamp (*1) received from ASME (American Society of Mechanical Engineers) as well as the type approvals granted by quite a few classification societies as listed below. （*1）

Type code Parts name and materials Dimensions and weight (ASME flange) Dimensions and weight (JIS flange) Orifice effective area of safety valve Cap structure code API pressure vs. temperature standard

1-5．Orifice effective area of safety valve ■ The effective area each of the orifices used in the RE series is as follows: The units of area are mm2 for the upper field and in2 for the lower of the tables, respectively.

Effective area of orifice specified in the API Standard 526. API area： Using an actual area of orifice to determine the relieving capacity of valve is allowed under API 520 Part 1, section 5.2.4.

A test gag is convenient in performing a hydrostatic pressure test or a blowout test. The gag should be finger tight. When the test is complete, be sure to replace it with a plug. Failure to do so may cause the safety valve not to operate, creating a dangerous situation.

2. REC/REB (large bore type) RE Series safety valves are available in large bores to meet a variety of needs, and this large-bore type has been developed for distilling plants of low pressure and large capacity.

3. RECL-PE (forged body type) This RECL-PE has been developed mainly for feed water heaters and other similar equipment in which a liquid is subjected to high temperature and high pressure. Therefore, this series is designed to withstand a harsh service environment of high temperature and high pressure with respect to valve structure and materials. The features of the series include:  Optimized shape of major sections that has realized smooth operating characteristics for liquid use.  Forged valve body that can accommodate an excess pipe stress.  Surface-hardened sliding section that can permit continuous valve operation, and more. For details, please contact our Business Department.

4. RECLP (for pump pressure relief) This product series is intended for use in a place where pulsation occurs in a liquid as found in reciprocating pumps, for example. The features include:  Sliding resistance caused by an O-ring provided between the guide and the disc when valve operates, acts to prevent the relief valve from opening/closing due to a pulsating liquid.  Orifice sizes F to J are available,  and many more. For details, please contact our Business Department.

5. RECLJ/REBLJ (Jacket type) This series is suited for use in liquids of high viscosity or those that need to be kept warm. The features include:  The entire body is jacketed to heat the safety valve as a whole by supplying steam via the steam-feed flange of the jacket. For details, please contact our Business Department.

6. REDW (dead-weight type) This series is a dead-weight type safety valve that enables operation under a very small pressure or micropressure which is not possible with a spring-loaded type safety valve. For details, please contact our Business Department.

Contents 1. Type code ······································································· 2 2. Parts name and materials ·················································· 3 3. Dimensions and weight ···················································· 5 4. Orifice effective area of safety valve ··································· 8 5. Accessories ··································································· 10 6. Pressure vs. temperature standard ··································· 12

1. Type code ■ RP type code system Our type code system is as follows and should be used for selection. Series name Table 1 : Main valve body construction code Code Body construction S Single outlet construction D Dual outlet construction Table 2: Pressure class, ASME inlet flange code Code

4. Orifice effective area of safety valve ■ The orifice effective areas of the RPS series are as follows: The units of area are mm2 for the upper field and in2 for the lower, respectively.

Is the effective area of orifice specified in the API Standard 526. API area： Using an actual area of orifice to determine the relieving capacity of valve is allowed under API 520 Part 1, section 5.2.4.

4. Orifice effective area of safety valve ■ The orifice effective areas of the RPS series (for large bores) are as follows: The units of area are mm2 for the upper field and in2 for the lower, respectively.

A field test connection is used for confirmation of the set pressure of pilot valve by utilizing other pressure source even when the primary pressure of main valve has not yet reached the set pressure. A check valve (built in the pilot valve) is provided on the pilot valve supply pipe so that a pressurized test gas from the pressure source is prevented from entering the main-valve primary-side pipe. (Note: The scope of work between the pressure source and the stop valve is not covered in our scope of supply.)

In the event that the secondary pressure of the safety valve exceeds the primary pressure, the main valve may be opened, thereby permitting counterflow, irrespective of the set pressure of pilot valve. To prevent this situation, a back flow preventer is provided. This back flow preventer consists of two check valves (including one already built in the pilot valve) and a secondary pressure pipe.

1. Manual blowdown valve This valve is intended for manual opening and closing operations of the safety valve when the primary pressure of safety valve is lower than the set pressure. When this manual blowdown valve is opened, the pressure inside the dome will be released, thereby opening the main valve. 2. Remote blowdown valve This valve is used for opening and closing operations of safety valve electrically or by means of pneumatic or hydraulic pressure for remote control.

A remote pressure pick-up tube is used to introduce pressure of a pressure vessel directly to the pilot valve, as in the following cases: 1. Where blow down of safety valve is required to be smaller. 2. Where pressure loss on primary side of safety valve is larger. 3. Where pressure vessel on which safety valve is installed, is dirty inside. 4. Where safety valve is not installed on pressure vessel to be protected, for reasons of system arrangement.

In case dust, scale, or other suspended solids are present inside the piping or the vessel, installation of a filter is required for protection of the pilot valve. The filter element is made of a sintered metal with a filtration degree of 35 to 40 microns.

A test gag is convenient in performing a hydrostatic pressure test or a blowout test. The gag should be finger tight. When the test is complete, be sure to replace it with a plug. Failure to do so may cause the safety valve not to operate, creating a dangerous situation.

Our achievements in the field of liquefied gas have finally come to fruition as products The issue of the recent global warming that is ever worsening environmental problems has highlighted “natural gas” as a clean energy source that will replace oil and coal, for environmental protection on an international level. Based upon our firsthand experience and know-how acquired on site with respect to the processes from transportation to storage of natural gas in a liquefied form, we at Fukui are now able to provide vacuum valves that operate in extreme environments of very small pressure.

Based on FUKUI experience and know-how in the field of liquefied gas such as transportation and storage of natural gas, PSL series copes with harsh environments of ultralow temperatures and slight pressures.

In the case of the conventional safety valves, it was not possible to change the popping pressure easily. In the case of PSL series, the popping pressure can be changed easily and securely according to the works by stacking the multiple set (pressurizing unit).

High airtightness！ The main valve uses a membrane seat structure that prevents resource from leaking. Teflon is used as the sealing material to prevent the seal performance from being degraded due to deterioration with age, thereby completely protecting important resource.

Pilot valve code Designation Description 1 Single pilot, Single set 2 Single pilot, Multiple set 3 Dual pilot, Single set 4 Dual pilot, Multiple set 6 Vacuum only

Valve body material code Material Designation JIS ASTM (Blank) SCPH2 A216 Gr.WCB C5 SCPL1 A352 Gr.LCB S SCS13 A351 Gr.CF8 S1 SCS14 A351 Gr.CF8M S2 SCS19 A351 Gr.CF3 S3 SCS16 A351 Gr.CF3M A AC4C-T6 B26 356.0-T6

Main valve structure code Designation Description Flangeless type 2 Without diaphragm support Flangeless type 3 With diaphragm support Flange type 4 With diaphragm support

Model code Temperature range Body ※1 Nozzle Disc Seat Disc retainer Disc center nut Retainer bolt & nut Spindle Guide Upper diaphragm set plate Diaphragm Cover ※1 Bolt & nut Gasket Gasket Gasket Nozzle seat installation bolt Inlet bolt & nut Pilot valve

Model code Temperature range Body ※1 Nozzle Disc Seat Disc retainer Disc center nut Retainer bolt & nut Spindle Guide Diaphragm cover Diaphragm Diaphragm retainer Cover ※1 Bolt & nut Gasket Gasket Inlet bolt & nut Remote pickup flange & pipe Pilot valve

Model code Temperature range Body ※1 Nozzle Disc Seat Disc retainer Disc center bolt Retainer bolt & nut Spindle Guide Diaphragm set plate Diaphragm Diaphragm retainer Cover ※1 Bolt & nut Gasket Gasket Gasket Pilot valve

Model code Temperature range Body ※1 Nozzle Disc Seat Disc retainer Disc center bolt Retainer bolt & nut Spindle Guide Diaphragm cover Diaphragm Diaphragm retainer Cover ※1 Bolt & nut Gasket Gasket Remote pickup flange & pipe Pilot valve

The pressure sensing section of the pilot valve is connected individually. This type prevents abnormal operation such as hunting when the pressure loss at the safety valve inlet piping and nozzle stub exceeds 3%. The remote pick-up system is recommended as a safety valve for tank.

The pressure sensing section of the pilot valve is connected to the main valve inlet. Like the ordinary conventional safety valve, this valve can be used by only installing it on the piping and tank. The pressure loss at the safety valve inlet piping and nozzle stub should be 3% or less.

One pilot valve is installed on the main valve. Two to three set pressures can be controlled by fitting the auxiliary pressure unit to the pilot valve.

Two pilot valves are installed on one main valve. The pilot valves control two set pressures, positive and negative pressures, respectively. (Code designation = 3) For both positive and negative pressures, two to three set pressures can be controlled by fitting the aux. pressure unit to the pilot valve. (Code designation = 4)

In the case of the safety valve with pilot valve, because of its structure, air is sucked from the main valve outlet to the inside of the vessel on which the valve is installed when the vessel becomes in a vacuum state. To avoid this, the check valve is installed on the supply line to prevent reverse flow.

By drawing the pressure in the main valve dome with the manual lifting device using the flow of the pressure source such as a nitrogen cylinder, the operating performance of the main valve can be checked even if there is no pressure on the primary side of the safety valve with pilot valve.

By using the field test kit, the popping pressure of the pilot valve can be checked with the safety valve installed on the equipment. Because it is not necessary to remove the safety valve from the equipment or to use a large device, a simple and effective test can be conducted.

Warranty Conditions Thank you for using FUKUI products. Our products are made in standardized manufacturing processes and shipped after undergoing rigorous quality control. Nevertheless, in the event of a failure attributable to a manufacturing defect, we will either repair or replace the valve free of charge in accordance with the following warranty provisions. Please contact us if this warranty seems applicable. 1.

Warranty scope If a valve failure within the warranty term is fault of FUKUI, we will, at our cost, repair it or provide a replacement. However, failures shall not be covered by the warranty if any one of the following applies:

2-6 Parts declared to subjected to significant wear when in use 2-7 Fire, flood damage, earthquake, lightning strike and other extraordinary natural phenomena 2-8 In cases where an expert and/or special equipment including a crane and scaffolding are used for repairs, adjustments or dismantling/reinstalling of heavy valves at an elevated or dangerous location. 3. Plants for use outside Japan If a valve failure occurs within the warranty term due to Fukui’s fault, we will provide a free replacement on an FOB or ex-factory basis. However, this is not applicable if any one of the provisions in 2-1 to 2-8 above applies.

2-1 A valve leaks or exhibits unstable operation due to foreign matter or other substances in boilers or piping. 4. After-sales service 2-2 Improper treatment or use. If you request for dispatch of a supervisor and/or worker(s) 2-3 Failure results from a cause not attributable to even during the warranty term, traveling expenses, FUKUI. accommodation charges, daily allowance and other 2-4 Improper repair or modification. necessary expenditure shall be separately charged. 2-5 Treatment, storage, or use under severe conditions that exceed design specifications.

3 CONTENTS 1. Safety valves for cargo tanks 2. Safety valves for boiler service 3. Safety valves for piping 4. Classification Society Appendix A: PSL-MD Series Appendix B: PSL-MP Series Appendix C: SL Series Nominal popping capacity list for safety valves for steam service Appendix D: SP Series Appendix E: RE Series Appendix F: Safety valve type approval list

4 1. Safety valves for cargo tanks These safety valves are used for installation on cargo tanks for LNG vessels, LPG vessels, FPSO (Floating Production, Storage and Offloading system), FSO (Floating Storage and Offloading system) and other types of systems and vessels. As safety valves for marine use, the pilot-operated safety valve structure is adopted because the set pressure is not affected by vibration. The following two types are available: PSL-MD Series: Low pressure/ diaphragm type mainly used onboard LNG vessels PSL-MP Series: Low pressure/piston type mainly used onboard pressure type LPG vessels 2. Safety valves for boiler service As safety valves for marine boiler use, the following series are available from our lineup. SL and SJ series of cast steel make SP series of bronze casing make for small package boilers These series valves have been designed and developed for steam service only, featuring firm seat tightness during operation and secure operating performance in case of an emergency. 3. Safety valves for piping RE series provides high flexibility in service as safety valves for cargo piping and utilities. 4. Classification society Theses series of safety valves have been type approved from each classification society.

6 Achievements in the rocket fuel helium gas and liquefied gas fields have realized our ideal as a product. Global warming in recent years, seriously affecting our environment! Green action on a global level now brings about attention focused on natural gas as a clean energy that can replace oil and coal. The PSL series we offer here is based on FUKUI s hands-on experience and know-how about liquefied gas covering transportation and storage of this natural gas, thus realizing the use in a harsh environment involving extremely low temperatures and very low pressures. Features of valves for cargo tanks of liquefied gas vessels Changing the popping pressure is possible even during operation! Ordinary safety valves were not easy to change the popping pressure during system operation. However, PSL series allows simple and reliable change of the popping pressure appropriate to the cargo by using aux. setter. Also meets the IGC code in design. Accurate operation! Adopts Teflon diaphragm excellent in durability and corrosion resistance. Accommodates all types of cargo, and realizes accurate operation and reduced maintenance costs at the same time. Employs a flange structure to attain easy installation of a pilot valve, and also as a means for preventing a malfunction from occurring due to loose connection caused by vibration, for example. Excellent gastightness Adopts a membrane seat structure that allows no leaks of cargo from the main valve. Uses Teflon sealing to prevent deterioration of sealing performance that may occur over years, thus ensuring 100% protection of cargo loaded onboard.

7 Model code PSL-MD N S1 (B) Series code Pilot valve code Designation Description 1 Single pilot as single set 2 Single pilot as multi-set 3 Dual pilot as single set 4 Dual pilot as multi-set Main valve structure code Designation Description R Flangeless type with no diaphragm 2 support. 3 Flangeless type with diaphragm support Pressure class code Designation Pressure class JIS ANSI, JPI 1 10K 150 # 2 20K 300 # 3 30K 300 # Cap code Designation Description A Closed type B Closed type with test gag Valve body material code Designation Material JIS ASTM (Blank) SCPH2 A216 Gr.WCB C5 SCPL1 A352 Gr.LCB S SCS13 A351 Gr.CF8 S1 SCS14 A351 Gr.CF8M S2 SCS19 A351 Gr.CF3 S3 SCS16 A351 Gr.CF3M Added code Designation Description (Blank) Guide casting or none N Guide plating D Guide plating for sealed LNGC Inlet connection code Designation Inlet connection 1 ANSI flange standard 2 JPI flange standard 4 JIS B 2220 Specified by customer 5 (for special connection) Temperature class code Designation Operating temperature range to C to C to 125 C

8 PSL-MD( )2 Standard material Model code PSL-MD ()2-()()()-S PSL-MD ()2-()()()-C5 PSL-MD ()2-()()()-S1 Temperature range Body *1 SCS13 SCPL1 SCS14 2 Nozzle seat SUS304 or SCS13 SUS316 or SCS14 3 Disc SUS304 SUS316 4 Seat Teflon Teflon 5 Disc retainer SUS304 SUS316 6 Disc center nut SUS304 SUS316 7 Retainer bolt & nut SUS304 SUS316 8 Spindle SUS304 SUS316 9 Guide SUS304 SUS Upper diaphragm set plate SUS304 SUS Diaphragm Teflon Teflon 12 Cover *1 SCS13 SCS13 SCS14 13 Bolt & nut SUS304 SUS Gasket Teflon Teflon 15 Gasket Teflon Teflon 16 Gasket Teflon Teflon 17 Nozzle seat installation bolt SUS304 SUS Inlet bolt & nut SUS304 SUS Pilot valve SUS304 or SCS13 SUS316 or SCS14 *1: Can comply with the material specified by a specific Classification Society. Note that the operating temperature range varies depending on the material standard of the valve body. Dimension table Operating temp. range 1-10kPa ( bar) Dimensions INLET OUTLET Orifice area cm A Dimensions (mm) B C Weight (kg)

9 PSL-MD ( )3-( )( )( )-N Standard material Model code PSL-MD()3-()()()-NS PSL-MD()3-()()()-NC5 PSL-MD()3-()()()-NS1 Operating temperature range C C C 1 Body *1 SCS13 SCPL1 SCS14 2 Nozzle seat SUS304 or SCS13 SUS316 or SCS14 3 Disc SUS304 SUS316 4 Seat Teflon Teflon 5 Disc retainer SUS304 SUS316 6 Disc center bolt SUS304 SUS316 7 Retainer bolt & nut SUS304 SUS316 8 Spindle SUS304 SUS316 9 Guide SUS304 SUS Diaphragm cover SUS304 SUS Diaphragm Teflon Teflon 12 Diaphragm retainer SUS304 SUS Cover *1 SCS13 SCPL1 SCS14 14 Bolt & nut SUS304 SUS Gasket Teflon Teflon 16 Gasket Teflon Teflon 17 Inlet bolt & nut SUS304 SUS Remote pickup flange & pipe SUS304 SUS Pilot valve SUS304 or SCS13 SUS3016or SCS14 *1: Can comply with the material specified by a specific Classification Society. Note that the operating temperature range varies depending on the material standard of the valve body. *2 Inlet and outlet flanges can also be manufactured in accordance with JIS, in which case the nozzle may be a semi-nozzle type. Dimension table Operating temp. range 5-250kPa ( bar) Dimensions INLET (ANSI150LB) OUTLET (ANSI150LB) Orifice area cm A Dimensions (mm) B C Weight (kg)

10 PSL-MD ( )3-( ) ( ) ( ) Standard material Model codel PSL-MD()3-()()()-S PSL-MD()3-()()()-C5 PSL-MD()3-()()()-S1 Operating temperature range C C C 1 Body *1 SCS13 SCPL1 SCS14 2 Nozzle seat SUS304 or SCS13 SUS316 or SCS14 3 Disc SUS304 SUS316 4 Seat Teflon Teflon 5 Disc retainer SUS304 SUS316 6 Disc center bolt SUS304 SUS316 7 Retainer bolt & nut SUS304 SUS316 8 Spindle SUS304 SUS316 9 Guide SCS13 SCS14 11 Diaphragm Teflon Teflon 12 Diaphragm retainer SUS304 SUS Cover *1 SCS13 SCPL1 SUS316 or SCS14 14 Bolt & nut SUS304 SUS Gasket Teflon Teflon 16 Gasket Teflon Teflon 17 Inlet bolt & nut SUS304 SUS Remote pickup flange & pipe SUS304 SUS Pilot valve SUS304 or SCS13 SUS316 or SCS14 *1: Can comply with material specified by a specific Classification Society. Note that the operating temperature range varies depending on the material standard of the valve body. *2 Inlet and outlet flanges can also be manufactured in accordance with JIS, in which case the nozzle may be a semi-nozzle type. Dimension table Operating temp. range kpag ( bar) Dimensions INLET (ANSI150LB) OUTLET (ANSI150LB) Orifice area cm A Dimensions (mm) B C Weight (kg)

12 We support safety of transportation of various liquefied gases as industrial infrastructure. PSL-MP series is suited for air, gases, vapors and other services at low and medium pressures. Adopts optimum design as a safety valve for use in cargo tanks of liquefied gas bulk carriers in particular. Allows minimum installation costs with respect to the IGC code multi-pressure and large popping capacity (discharge coefficient: 0.843). A good combination of main valve of simple structure and pilot valve with excellent durability ensures safety of the system. Features of valves for cargo tanks of liquefied gas bulk carriers Can change the popping pressure setting even during operation! For ordinary safety valves, the popping pressure could not be changed with ease during system operation. However, PSL-MP series allows simple and reliable change of the popping pressure setting to suit the cargo by using an aux. setter. Also meets the IGC code design requirements. Accurate operation! Adopts metal diaphragm excellent in durability and corrosion resistance. Accommodates all types of cargo, and also realizes accurate operation and reduced maintenance costs. Employs a flange structure for easy installation of a pilot valve, and also as a means for preventing a malfunction from occurring due to loose connection caused by vibration, for instance. Excellent safety! Can be optionally equipped with a protector to avoid possible damage to the valve and piping that may be caused by driftwood or floatage on a stormy day during navigation. Provided with measures against malfunction in any condition. Superb gastightness! Adopts the self-sealing structure that allows no leaks of cargo from the main valve. Uses highly corrosion-resistant O-ring for sealing purposes to attain better gastightness.

13 Model code PSL-MP S1 (B) Series code Pilot valve code Designation Description 1 Single pilot as single set 2 Single pilot as multi-set 3 Dual pilot as single set 4 Dual pilot as multi-set Main-valve structure code Designation Description 1 1 only for MP series Pressure class code Designation Pressure class JIS ANSI, JPI 1 10K 150 # 2 20K 300 # 3 30K 300 # Cap code Designation Description A Closed type B Closed type with test gag Valve body material code Designation Material JIS ASTM (Blank) SCPH2 A216 Gr.WCB C5 SCPL1 A352 Gr.LCB S SCS13 A351 Gr.CF8 S1 SCS14 A351 Gr.CF8M S2 SCS19 A351 Gr.CF3 S3 SCS16 A351 Gr.CF3M Inlet connection code Designation Inlet connection 1 ANSI flange standard 2 JPI flange standard 4 JIS B 2220 Specified by customer for special 5 connection Pressure class code Designation Operating temperature range C C C

14 Parts name and material Standard material Model code PSL-MP()1-()()()-S PSL-MP()1-()()()-C5 PSL-MP()1-()()() Operating temperature range Nozzle seat SUS304 2 Seat *2 Perfluoro-elastomer 3 Disc SUS304 4 Seat retainer SUS304 5 Retainer bolt SUS304 6 Body *1 SCS13 SCPL1 SCPH2 7 Cover *1 SCS13 8 Bolt & nut SUS304 9 Gasket Teflon 10 Gasket Teflon 11 Piston seal Teflon 12 Dipper tube SUS Supply pipe SUS316/SUS304TP 14 Gasket Teflon 15 Bolt & nut SUS Pilot valve SUS304 *1: Can comply with the material specified by a specific Classification Society. Note that the operating temperature range varies depending on the material standard of the valve body. *2 Can also accommodate Teflon seats. Dimension table Operating temp. range MPaG Dimensions INLET (ANSI150LB) OUTLET (ANSI150LB) Orifice area cm A Dimensions (mm) B C Weight (kg)

15 PSL-MD/MP Common Specifications Pilot valve pressure supply method Internal pickup method Remote pickup method The pressure sensing section of the pilot valve is connected to the main valve inlet. Therefore, as with conventional type safety valves, these series of valves can be simply installed on the piping or tank for ready use. However, ensure that the pressure loss across the safety valve inlet piping and the inlet piping is less than 3%. Pilot valve code Code designation = 1 Single pilot as single set This method is such that the pressure sensing section of the pilot valve is individually piped. Take care to ensure that no hunting or other problem will occur when the pressure loss across the safety valve inlet piping or the inlet piping exceeds 3%. For use on tanks, we recommend this remote pickup method. Code designation = 2 Single pilot as multi set One pilot valve is mounted on the main valve to control one pressure setting. One pilot valve is mounted on the main valve, and by equipping the pilot valve with an aux. setter, two or three pressure settings can be controlled. Allows easy compliance to I.G.C. code Code designation = 3 Dual pilot as single set Code designation = 4 Dual pilot as multi set Aux. pressure unit Positive pressure pilot valve Main valve Negative pressure pilot valve Two pilot valves are mounted on one main valve, with each pilot valve controlling the two settings of positive and negative pressures. (Code designation = 3) Furthermore, equipping the pilot valve with an aux. pressure unit allows control of two or three settings of positive and negative pressures. (Code designation = 4)

16 PSL-MD/MP Common Specifications Accessories Check valve Strainer Check valve Check valve Strainer A pilot operated safety valve is so structured that when a specific container on which the valve is installed turns to a vacuum condition, air is sucked into the container from the main valve outlet. In order to prevent it from occurring, a check valve is installed on the supply line to ensure no reverse flow. When scale or other foreign matter is present inside the container on which a safety valve is installed, a strainer is required for their removal to ensure protection and proper operation of the pilot valve. Manual lifting device Stop valve Manual lifting device Ejector The manual lifting device allows the main valve to be checked for operation even when there is no pressure on the primary side of the pilot-operated safety valve, by sucking the pressure from inside the main valve dome through the flow of gas from a pressure source such as an N2 cylinder. N2 cylinder Field test connector and test kit Field test kit Test connector valve Check valve In a field test the pilot valve can be checked for the popping pressure with the safety valve installed on a plant, for example. In other words, to carry out a field test there is no need to remove the safety valve from the system or to arrange for large-scale testing equipment, thus making it possible to realize a simple and effective test. N2 cylinder

19 SJ/SL series safety valves for steam service SJ/SL series safety valves have been developed for steam service to meet the Rules for the Survey and Construction of Steel Ships (NK) and the Rules and Regulations of those classifications societies such as LRS. The SJ/SL series are designed to endure harsh operating conditions involving high temperatures and high pressures, in terms of structure and material.

20 Technology for enhancing product reliability (SJ/SL100~300) In case of an emergency under a tough operating condition, safety valves must operate to quickly discharge an extra pressure to protect the pressure equipment from the risk of explosion. They also need gastightness good enough to permit no leaks of fluid from pressure equipment. Thus, safety valves must play a role of meeting these two conflicting requirements at the same time. However, only the force of the spring built in the safety valve must cope with this tough problem. In order to solve this problem, we adopt the disc structures called feather lip disc and thermo lip disc that are made by forming the seat tip to be lip shaped, followed by high-precision machining to provide excellent flexibility in property so that accurate operating and secure sealing characteristics will be drawn forth by utilizing the fluid temperature and pressure. In addition, we dedicate efforts to create reliable springs, spindles and other products into the market by making full use of our longstanding experience/know-how and achievements so far made. Yoke SJ/SL100 to 300 series adopt a yoke structure. The structure with a spring installed in the yoke promotes efficient air cooling so that steam heat does not affect the spring at the time of valve operation. Spring A cylindrical coil spring of high dimensional accuracy in which the flexibility index is maintained at constant irrespective of pressure, and eccentric load is corrected. For the spring material, alloy steel is used because of its excellent fatigue resistance, workability, and hardenability. Operation adjustment mechanism The lower adjusting ring equipped on the upper edge of the nozzle seat is a means for making fine adjustments of a popping action at its initial stage. The upper adjusting ring is provided on the lower part of the guide as a blowdown adjusting mechanism. In addition our back pressure adjusting mechanism is for blowdown adjustment and it is such that the back pressure adjusting needle or back pressure adjusting cock equipped on the yoke is used to control the back pressure that occurs at the back of the disc when the safety valve starts popping. Nozzle seat The nozzle seat adopted is so structured that an integral full nozzle is screwed in the valve body to fix in position, with the lower section seal-welded. The nozzle seat material used is carbon steel, forged steel or low alloy forged steel that are all high in safety, and the edge seat section coming in contact with the disc is clad with stellite for surface hardening. Flanged type Welded type

21 Technology for enhancing product reliability (SL400) Yoke SL400 type series adopts a yoke structure. The structure with a spring installed in the yoke allows efficient air cooling so that steam heat does not affect the spring at the time of valve operation. Spring A cylindrical coil spring of high dimensional accuracy in which the flexibility index is maintained at constant irrespective of pressure, and eccentric load is corrected. For the spring material, alloy steel is used because of its excellent fatigue resistance, workability, and hardenability. Operation adjustment mechanism The lower adjusting ring equipped on the upper edge of the nozzle seat is a means for making fine adjustments of a popping action at its initial stage. The upper adjusting ring is provided on the lower part of the guide and it is a blowdown adjusting mechanism. Our back pressure adjusting mechanism is for blowdown adjustment and it is such that the back pressure adjusting needle equipped on the yoke is used to control the back pressure that occurs at the back of the disc when the safety valve. Nozzle seat The nozzle seat adopted is so structured that an integral full nozzle is screwed in the valve body to fix in position, with the lower section seal-welded. The nozzle seat material used is carbon steel, forged steel or low alloy forged steel that are all high in safety, and the edge seat section that comes in contact with the disc is clad with stellite for surface hardening.

22 Technology for enhancing product reliability (SL500~900) In addition to the popping characteristics and the seat tightness, safety valves need a mechanism that provides high reliability. One example is a back pressure adjusting mechanism unique in our safety valves. Besides the clear popping mechanism and the valve lifting force adjustment mechanism, our safety valves are equipped with our original back pressure adjusting mechanism to allow safety valve blowdown adjustment. This mechanism is based on the yoke type side needle method that features coil spring protection and easy adjustment work after installation, and also on the cooling type center throttle method in which the throttle automatically opens and closes in accordance with the disc action: these two methods have been put into practical use. Spindle At the edge of the spindle transmitting a spring thrust that ranges from hundreds of kilos to several tons, the spring thrust must be transmitted accurately to the disc center in the vertical direction, thus requiring load and wear resistances against the thrust. For this, our spindle is so structured that the disc back section and the spindle edge at which the spindle thrust is to be received are finished to be perfectly spherical with each other to ensure centricity of the spring thrust and also reliable transmission of a load by maintaining an appropriate contact surface area. The spindle material is 13-chrome based stainless steel, and for high temperature & high pressure specifications, special chrome nickel silicon stainless steel is adopted for its higher wear resistance. Cooling spool and bonnet The bonnet of SL 700 type and above is of a cylindrical type for spring protection and increased strength against vibration. In addition, a cooling spool is provided between the valve body and the bonnet to avoid direct exposure of the spring to high temperature steam at the time of valve operation. At the same time, this cooling section is structured to allow easy release of the center throttle adjusting back pressure. Valve body The valve body is spherical in shape to provide a structure that allows minimum influence of reaction force by popping steam or of distortion resulting from pipe vibration at the installation side or at the exhaust side. Furthermore, this structure eliminates useless dead space in the body, and instead allows uniform pressure distribution inside the body, thus making the flow toward the valve outlet smooth. Holder Disc collar Disc center Disc ring Disc The disc structure comes in two types: feather lip disc in which the contact surface with the nozzle seat is formed to be a lip face, and a thermo lip disc. These are selectively used depending on the operating temperature and pressure. The operating principle is that the disc seating section is machined to form a lip so that the lip edge is bent by the internal pressure until the safety valve starts popping, and with an increase in pressure the disc seat surface pressure decreases, in which case the raised section of the lip reduces the contact area of the disc with the nozzle seat, thus maintaining a high seat surface pressure to ensure good gas tightness. The thermo lip disc is of a built-up structure consisting of a combination of the disc center and the disc ring, and is actually an improved version of a feather lip disc in terms of function, for use at high pressures. This method features that a lip support is provided at the disc center edge and the lip back-side, to prevent deformation of the lip section: to be more specific, the lip section is protected from deformation due to shocks that occur when the safety valve closes. This means that even in the high temperature/ high pressure area the feather lip s excellent function of maintaining tightness is not impaired, thus contributing to enhancing the durability of the disc. In addition, a gap is provided between the disc and the holder, presenting a flexible type. Therefore, even if the spindle is subjected to inclination by an external force such as the reaction force of piping, the disc is not affected in its function. Thermal disc

23 Model code of safety valves for steam service (T) Model code Pressure class code Temperature class code Inlet connection code Special connection code Casing material code Cap code Designation (C) (T) Description Open lever type Open lever type with test gag Designation Material JIS ASTM None SCPH2 A216 Gr.WCB -C2 SCPH21 A217 Gr.WC6 -C3 SCPH32 A217 Gr.WC9 -C4 SCPH61 A217 Gr.C5 -CA SCPH91 A217 Gr.C12A Designation Inlet connection standard JIS B8210 ANSI, JPI JIS B K 300 # 30K -4 40K 600 # 40K # 63K # # - If the nominal pressure of the inlet connection is the same as those of the pressure class code, then no designation is given. Max. operating Designation temperature (750 F) (850 F) (950 F) (1060 F) (1120 F) Designation Inlet connection 0 JIS B8210 (1986) 1 ANSI flange standard 2 JPI flange standard 3 Welded type 4 JIS B Specified by customer for special connection 9 JIS B8210 (1994) Applicable standard and code Inlet connection standard Designation Classification society ANSI, JPI JIS B2220 Welded type SJ SL Designation Inlet connection standard JIS B8210 ANSI, JPI JIS B K 150 # 10K 2 20K 300 # 20K 3 30K 300 # 30K 4 40K 600 # 40K # 63K # # # # * # *1 - *1: Welded type only

24 Relieving capacity calculations for safety valves for steam service Applicable standard Equation Symbol W : nominal relieving capacity kg/h NK W = A Kd( 1.03Ps + 1) 100 Vsat Vsh A : throat area Kd : nominal discharge coefficient mm 2 Ps : set pressure barg LR W = A Kd( 1.03Ps + 1) 98.1 Vsat Vsh Vsat : specific volume of saturated steam Vsh : specific volume of superheated steam (Vsh = Vsat for saturated steam) m 3 /kg m 3 /kg DNV W = A( Ps + 1) Kd( Td) Td : difference between relieving temp. and saturated temp. (0 for saturated steam) Tsh : superheated steam temperature (0 for saturated steam) L: safety valve lift mm BV W = A Kd L dt 1.02Ps + 1 Tsh dt: safety valve throat diameter mm KR W = A Kd 1.05Ps Tsh For the Rules and Regulations of other classification societies, please contact us.

25 SJ/SL1 ( ) ( ) ~3 ( ) ( ) series safety valves: Parts name Cap Upper lever Lower lever Adj. screw lock nut Adj. screw Yoke Upper spring washer Spring Spindle Lower spring washer Stud bolt & nut Back press. adj. needle Back press. adj. needle lock nut Lift stopper Guide Holder Upper lock bolt Lower lock bolt Body Disc Upper adj. ring Lower adj. ring Nozzle SJ100~300 (Unit: mm 2 ) Orifice designation F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Throat area SL100~300 (Unit: mm 2 ) Orifice designation D E F G H J K L M N P Q R T Throat area

26 SJ/SL1 ( ) ( ) ~3 ( ) ( ) series safety valves: Standard material Model SJ/SL ( ) 3 ( ) SJ/SL ( ) 5 ( ) SJ/SL ( ) 6 ( ) Max. operating temperature 400 C 750 F 510 C 950 F 570 C 1060 F Nozzle seat *1 ASTM A105 ASTM A182-F12 ASTM A182-F22 Disc SUS630 ( 320 ) or B637 No (Inconel X) (>320 ) Disc collar SUS420J2 Holder SUS403 Body SCPH2 or A216 Gr. WCB SCPH21 or A217 Gr. WC6 SCPH32 or A217 Gr. WC9 Yoke SCPH2 or A216 Gr. WCB SCPH21 or A217 Gr. WC6 Spindle SUS403 SUS431 Guide Upper and lower adjusting rings SUS403 or SCS1 SUS304 or SCS13 Upper lock bolt SUS403 SUS431 Parts name Lower lock bolt SUS403 SUS431 Spring washer and spring retainer S25C Spring Carbon steel or alloy steel Adj. screw Adj. screw locknut Lift stopper Step ring SUS403 SUS304 SUS420J2 SUS420J2 Stud bolt and nut SNB7 / S45C SNB16 / A194 Gr.4 Cap Upper lever Lower lever Pin Back pres. adj. needle & locknut *2 FCMB310 FCMB310 FCMB310 SUS304 SUS304 / SS400 Back press. adj. cock *2 SCS13 * 1: This part is clad with stellite on the seating surface. * 2: For the back pressure adjusting mechanism, either a back pressure adjusting needle or a back pressure adjusting cock is maker standard.

27 SJ1 ( ) ( ) ~ 3 ( ) ( ) series safety valves: Operating range and dimensions Safety valve: major dimensions and weight Type Inlet F Outlet F SJ109 SJ209 SJ309 JIS B 8210 (1994) 10K RF JIS B 8210 (1994) 20K RF JIS B 8210 (1994) 30K RF JIS B K RF JIS B K RF JIS B K RF Installation dimensions Max. operating pressure MPaG Inlet diameter Throat area mm 2 Outlet diameter Face-to-face dimension Overall length Disassembly Flange thickness height Inlet Outlet (Unit: mm) Screw diameter Drain Needle Weight Rc Rp kg B H L H HA T T1 25xF2x /2 1/ xG2x /2 3/ xH2x /2 3/ xJ2x / xL1x / xMx / xN3x /2 1-1/ xP2x /2 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ xF2x /2 1/ xG2x /2 3/ xH2x /2 3/ xJ2x / xL1x / xMx / xN3x /2 1-1/ xP2x /2 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ xF2x /2 3/ xG2x /2 3/ xH2x / xJ2x / xL1x /2 1-1/ xMx /2 1-1/ xN3x /2 1-1/ xP2x /4 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/4 310 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves.

28 SJ1 ( ) ( ) ~ 3 ( ) ( ) series safety valves: Operating range and dimensions Safety valve: major dimensions and weight Type Inlet F Outlet F SJ204 SJ204-3 SJ304-4 JIS B 2220 (1996) 20K RF JIS B 2220 (1996) 30K RF JIS B 2220 (1996) 40K RF JIS B K RF JIS B K RF JIS B K RF Type Inlet F Outlet F SJ201 SJ301-4 ANSI 300Lb RF ANSI 600Lb RF ANSI 150Lb RF ANSI 150Lb RF (Unit: mm) Max. operating pressure Inlet Face-to-face Overall Disassembly Flange thickness Screw diameter Installation Throat area Outlet Weight MPaG diameter dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 32xF2x /2 1/ xG2x /2 3/ xH2x /2 3/ xJ2x / xL1x / xMx / xN3x /2 1-1/ xP2x /2 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ xF2x /2 1/ xG2x /2 3/ xH2x /2 3/ xJ2x / xL1x / xMx / xN3x /2 1-1/ xP2x /2 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ xF2x /2 3/ xG2x /2 3/ xH2x / xJ2x / xL1x /2 1-1/ xMx /2 1-1/ xN3x /2 1-1/ xP2x /4 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/4 310 Installation dimensions Max. operating pressure Inlet Face-to-face Overall Disassembly Flange thickness Screw diameter Throat area Outlet Weight MPaG diameter dimension length height mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 1-1/4xF2x1-1/ /2 1/ /2xG2x /2 3/4 23 2xH2x2-1/ /2 3/ /2xJ2x / xL1x / /2xMx / xN3x /2 1-1/4 94 5xP2x /2 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ /4xF2x1-1/ /2 1/ /2xG2x /2 3/4 27 2xH2x2-1/ / /2xJ2x / xL1x /2 1-1/ /2xMx /2 1-1/ xN3x /2 1-1/ xP2x /4 1-1/ xQ2x /4 1-1/ xQ3x /4 1-1/4 265 SJ301-5 ANSI 900Lb RF ANSI 150Lb RF 6xRx /4 1-1/4 310 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves.

29 SJ1 ( ) ( ) ~ 3 ( ) ( ) series safety valves: Operating range and dimensions Safety valve: major dimensions and weight (Unit: mm) Type Inlet F Outlet F SL101 SL201 ANSI 150Lb RF ANSI 300Lb RF ANSI 150Lb RF ANSI 150Lb RF Type Inlet F Outlet F SL301 ANSI 300Lb RF ANSI 150Lb RF Max. operating pressure Inlet Face-to-face Overall Disassembly Flange thickness Screw diameter Installation Throat area Outlet Weight MPaG diameter dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 3/4xDx /8 1/2 11 1xDx /8 1/2 13 1xEx /8 1/ /2xFx /2 1/ /2xGx2-1/ /2 1/ /2xHx /2 3/ xJx /2 3/ xKx /2 3/4 51 3xLx /2 3/4 59 4xMx /2 3/4 71 4xNx /2 1-1/4 90 4xPx /2 1-1/ xQx /4 1-1/ xRx /4 1-1/ xTx /4 1-1/ /4xDx /8 1/2 11 1xDx /8 1/2 13 1xEx /8 1/ /2xFx /2 1/ /2xGx2-1/ /2 1/ /2xHx /2 3/ xJx /2 3/4 31 3xKx / xLx / xMx / xNx /2 1-1/4 92 4xPx /2 1-1/ xQx /2 1-1/ xRx /4 1-1/ xTx /4 1-1/2 410 Max. operating pressure Inlet Face-to-face Overall Disassembly Flange thickness Screw diameter Installation Throat area Outlet Weight MPaG diameter dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 1xDx /8 1/2 14 1xEx /8 1/ /2xFx /2 1/ /2xGx2-1/ /2 3/4 22 2xHx /2 3/ /2xJx /2 3/4 46 3xKx /2 3/4 60 3xLx /2 1-1/4 90 4xMx /2 1-1/ xNx /2 1-1/ xPx /2 1-1/ xQx /2 1-1/ xRx /4 1-1/ xTx /4 1-1/2 420 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves.

30 SJ1 ( ) ( ) ~ 3 ( ) ( ) series safety valves: Operating range and dimensions Safety valve: major dimensions and weight (Unit: mm) Max. operating Flange Inlet Face-to-face Overall Disassembly Screw diameter pressure thickness Weight Type Inlet Outlet Installation Throat area Outlet diameter dimension length height F F dimensions MPaG mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 20xDx /8 1/ xDx /8 1/ xEx /8 1/ xFx /2 1/ xGx /2 1/ xHx /2 3/ xJx /2 3/ xKx / xLx / xMx / xNx /2 1-1/ xPx /2 1-1/ xQx /2 1-1/ xRx /4 1-1/ xTx /4 1-1/2 400 SL104 JIS B 2220 (1996) 10K RF Type Inlet F SL204 JIS B 2220 (1996) 20K RF Type Inlet F SL304 JIS B 2220 (1996) 30K RF JIS B K RF Outlet F JIS B K RF Outlet F JIS B K RF Flange Max. operating pressure Inlet Face-to-face Overall Disassembly Screw diameter Installation Throat area Outlet thickness Weight MPaG diameter dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 20xDx /8 1/ xDx /8 1/ xEx /8 1/ xFx /2 1/ xGx /2 1/ xHx /2 3/ xJx /2 3/ xKx / xLx / xMx / xNx /2 1-1/ xPx /2 1-1/ xQx /2 1-1/ xRx /4 1-1/ xTx /4 1-1/2 410 Flange Max. operating pressure Inlet Face-to-face Overall Disassembly Screw diameter Installation Throat area Outlet thickness Weight MPaG diameter dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 25xDx /8 1/ xEx /8 1/ xFx /2 1/ xGx /2 3/ xHx /2 3/ xJx / xKx / xLx /2 1-1/ xMx /2 1-1/ xNx /2 1-1/ xPx /2 1-1/ xQx /2 1-1/ xRx /4 1-1/ xTx /4 1-1/2 420 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves.

31 SL4 ( ) ( ) ~6 ( ) ( ) series safety valves: Parts name SL400 SL SL (Unit: mm 2 ) Orifice designation F1 G1 H J K K2 L M M2 N2 P Q0 Q1 Q R T Throat area

32 SL ( ) 3 ( ) SL ( ) 5 ( ) SL ( ) 6 ( ) Max. operating temperature 400 C 750 F 510 C 950 F 570 C 1060 F Nozzle seat *1 ASTM A105 ASTM A182-F12 ASTM A182-F22 Disc Disc collar Holder SJ/SL4( )( )~5( )( ) SUS630 (320 ) or B637 No (Inconel X) (>320 ) SL6( )( ) B637 No (Inconel X) SUS420J2 SUS403 Valve body SCPH2 or A216 Gr. WCB SCPH21 or A217 Gr. WC6 SCPH32 or A217 Gr. WC9 Yoke Yoke spindle Guide SCPH2 or A216 Gr. WCB SUS630 Cooling spool A105 or A216 Gr. WCB A182-F12 or A217 Gr. WC6 Spindle SUS403 SUS431 Guide Upper and lower adjusting rings SUS403 or SCS1 SUS304 or SCS13 Upper lock bolt SUS403 SUS431 Lower lock bolt SUS403 SUS431 Spring washer Spring retainer Spring Adj. screw Adj. screw locknut Pin SUS304 部品名称Lift stopper Step ring Spring retainer Bearing S25C S25C as per JIS B1532 Thrust Ball Bearing Carbon steel or alloy steel SUS403 SUS304 SUS420J2 SUP10 Stud bolt and nut SNB7 / S45C SNB16 / A194 Gr.4 Hexagon head bolt (SL600 K~R) Cap Upper lever Lower lever Back press. adj. cock 1: This part is clad with stellite on the seating surface. S45C FCMB310 FCMB310 FCMB310 SCS13

33 SL4 ( ) ( ) series safety valves: Operating range and dimensions Flanged type Welded type Safety valve: major dimensions and weight Type Inlet F Outlet F SL401 ANSI 600Lb RF ANSI 150Lb RF (Unit: mm) Max. operating pressure Inlet Face-to-face Overall Disassembly Flange thickness Screw diameter Installation Throat area Outlet Weight MPaG diameter dimension length height Inlet Outlet dimensions mm 2 diameter Drain Needle B H L H HA T T1 Rc Rp kg 1.1/2xFx2.1/ /2 3/ /2xGx /2 3/ /2xHx /2 3/4 35 2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/ xTx /4 1-1/4 650 Type SL403 inlet Welded type Outlet F ANSI 150Lb RF Installation dimensions Max. Inlet operating diameter pressure Inlet neck outside diameter A Throat area mm 2 Outlet diameter Face-to-face dimension Overall length Disassembly height Flange thickness Screw diameter MPaG B H L H HA T1 kg 1.1/2xFx2.1/ /2 3/ /2xGx /2 3/ /2xHx /2 3/4 35 2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/ xTx /4 1-1/4 650 Drain Rc Needle Rp Weight Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves.

34 SL5 ( ) () series safety valves: Operating range and dimensions Flanged type Welded type Safety valve: major dimensions and weight Type Inlet Outlet F F SL501 ANSI 900Lb RF ANSI 150Lb RF Type inlet Outlet F SL503 Welded type ANSI 150Lb RF Installation dimensions Max. operating pressure MPaG Inlet diameter Throat area mm 2 Flange Face-to-face Overall Disassembly Outlet thickness dimension length height diameter Inlet Outlet H L H HA T T1 Screw diameter Drain Rc (Unit: mm) B kg 1.1/2xF1x /2 3/ /2xG1x /2 3/ /2xHx /2 3/4 48 2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/4 550 Max. Inlet neck outside Screw Inlet Face-to-face Overall Disassembly Flange Installation operating diameter diameter diameter Throat area Outlet Weight dimension length height thickness dimensions pressure A mm 2 diameter Drain Needle MPaG B H L H HA T1 Rc Rp kg 1.1/2xF1x /2 3/ /2xG1x /2 3/ /2xHx /2 3/4 48 2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/4 550 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves. Needle Rp Weight

35 SL6 ( ) ( ) series safety valves: Operating range and dimensions Flanged type Welded type Safety valve: major dimensions and weight Type Inlet Outlet F F SL601 ANSI 1500Lb RF ANSI 150Lb RF Type inlet Outlet F SL603 Welded type ANSI 150Lb RF Installation dimensions Max. operating pressure MPaG Inlet diameter Throat area mm 2 Flange Face-to-face Overall Disassembly Outlet thickness dimension length height diameter Inlet Outlet H L H HA T T1 Screw diameter Drain Rc (Unit: mm) B kg 1.1/2xF1x /2 3/ /2xG1x /2 3/ /2xHx /2 3/ /2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/4 650 Max. Inlet neck outside Screw Inlet Face-to-face Overall Disassembly Flange Installation operating diameter diameter diameter Throat area Outlet Weight dimension length height thickness dimensions pressure A mm 2 diameter Drain Needle MPaG B H L H HA T1 Rc Rp kg 1-1/2xF1x /2 3/ /2xG1x /2 3/ /2xHx /2 3/4 53 2xJx /2 3/ /2xKx /2 3/ /2xK2x / xLx / xMx / xM2x / xN2x / xPx /2 1-1/ xPx /2 1-1/ xQ0x /4 1-1/ xQ1x /4 1-1/ xQx /4 1-1/ xQx /4 1-1/ xRx /4 1-1/4 650 Installation dimensions are the nominal sizes of the inlet and outlet flanges. Inlet diameter denotes the inner diameter of the safety valve inlet and may therefore differ from the inlet flange size depending on safety valves. Needle Rp Weight

36 SL7 ( ) ( ), 8 ( ) ( ) series safety valves: Operating range & dimensions (Flanged type) Safety valve: major dimensions and weight Type Inlet F SL701 SL801 ANSI 2500Lb RF ANSI 2500Lb RF Outlet F ANSI 300Lb RF ANSI 300Lb RF Flanged type (Unit: mm) Flange Max. operating pressure Inlet Face-to-face Overall Disassembly Screw diameter Installation thickness MPaG diameter Throat area Outlet Weight dimension length height dimensions mm 2 diameter Inlet Outlet Drain Needle B H L H HA T T1 Rc Rp kg 1-1/2xF1x /2 1/ /2xG1x /2 1/ /2xHx /2 3/ xJx /2 3/ /2xKx /2 1-1/ /2xK2x /4 1-1/ xLx /4 1-1/ xMx /4 1-1/ xM2x /4 1-1/ /2xF1x /2 1/ /2xG1x /2 1/ /2xHx /2 3/ xJx / /2xKx /2 1-1/ /2xK2x /4 1-1/ xLx /4 1-1/ xMx /4 1-1/ xM2x /4 1-1/2 450 Note: For SL ( )6 ( ), some have the max. operating pressure exceed the ANSI pressure-temperature rating, and those failing to meet the ANSI standard must not be used. For details, see ANSI B16.34 PRESSURE-TEMPERATURE RATING TABLE.

37 SL7 ( ) ( ) ~ 9 ( ) ( ) series safety valves: Operating range & dimensions (Welded type) Welded type Safety valve: major dimensions and weight Type Inlet Outlet F SL703 SL803 SL903 Welded type Welded type Welded type ANSI 300Lb RF ANSI 300Lb RF ANSI 300Lb RF (Unit: mm) Max. Inlet Inlet neck outside Face-to-face Overall Disassembly Flange Screw diameter Installation operating diameter diameter Throat area Outlet Weight dimension length height thickness dimensions pressure A mm 2 diameter Drain Needle MPaG Rc Rp B H L H HA T1 kg 1-1/2xF1x /2 1/ /2xG1x /2 1/ /2xHx /2 3/ xJx / /2xKx /2 1-1/ /2xK2x /4 1-1/ xLx /4 1-1/ xMx /4 1-1/ xM2x /4 1-1/ /2xF1x /2 1/ /2xG1x /2 1/ /2xHx /2 3/ xJx / /2xKx /2 1-1/ /2xK2x /4 1-1/ xLx /4 1-1/ xMx /4 1-1/ xM2x /4 1-1/ /2xF1x /2 1/ /2xG1x /2 1/ /2xHx /2 3/ xJx / /2xKx /2 1-1/ /2xK2x /4 1-1/ xLx /4 1-1/ xMx /4 1-1/ xM2x /4 1-1/2 480

38 Electromagnetic pressure relief valves: PSH-ER series PSH-ER series solenoid operated pressure relief valves are operated for opening and closing using electricity (or electromagnet) as a source of power. PSH-ER series valves consist of a main valve, a pilot valve, a solenoid (or electromagnet) assembly, a controller and an operation panel. In comparison with ordinary spring-loaded safety valves, this series features: Permits perfect prevention of leaks until the set pressure is reached Permits accurate and reliable popping pressure setting by use of a pressure sensor Performs reliable blowdown (2% blowdown achieved) Thus this valve series contributes to improving boiler operating efficiency and reducing costs. Product configuration Structure and major materials

39 RECL-PE series: Relief valves for high temperature/high pressure liquids This RECL-PE series has been developed mainly for feed-water heaters and other equipment that deal with high temperature and high pressure liquids, and its structure and materials used are, on the design stage, carefully selected in consideration of harsh operating conditions involving high temperatures and high pressures. Relief valves of this series feature the optimized shapes of major sections that have realized smooth operation for liquid service, and a forged body that accommodates excess piping reaction force, as well as the surface hardening treatment of the sliding section to allow continuous valve operation. For details, please contact our Business Dept. Product specifications Operating pressure range MPa Operating temperature range Blowdown 15% ASME certified discharge coefficient K=0.717 (ASME Sec. VIII) Parts name and major materials Parts name Major material 1 Nozzle seat A105 2 Disc SUS630 3 Holder SUS403 4 Body A105 5 Spindle SUS403 6 Guide SUS304 7 Adjusting ring SUS304 8 Lock bolt S20C 9 Bonnet SCPH2 10 Spring washer S25C 11 Spring retainer S25C 12 Spring Spring steel 13 Adjusting screw SUS Jam nut SS Stud bolt & nut SNB7/S45C 16 Gasket Non-asbestos or dead soft steel 17 Cap SCPH2

40 Discharge pipe (drip pan) for steam service safety valves More than 90% of reported safety valve problems are seat leaks, and this problem is mostly due to binding or immobilization of a discharge pipe of safety valve. In order to prevent such a seat-leak problem, we manufacture drip pans most suited to our safety valves. Please order them together with safety valves. General type drip pan Closed type drip pan Dimensional table for general type drip pans Safety valve outlet diameter d1 d2 d3 A B D Rc3/ Rc3/ Rc1/ Rc1/ Rc1/ Rc3/ Rc3/ Rc Rc

41 Field tester JK-1 for jack-up tests The JK-1 features: Safety valve operation test required for periodic inspection of boilers Use our JK-1 to save time and money, instead of testing on an actual boiler! Permits tests at normal operating pressure; Permits tests at low fuel cost, lost cost and low noise; Permits direct reading of a load with high reliability; Uses a microcomputer for simple, reliable and speedy tests; and Displays measurement results on the spot. A jack-up test is performed to check a safety valve for its popping pressure while a boiler or other equipment under protection by the safety valve is in operation at the operating pressure. This field tester contributes not only to reducing test costs but also to environmental measures in the neighborhood, thus presenting a convenient test method. For details, please contact our Business Department. Hyd. pump Hyd. line Load cell Pressure sensor Hyd. cylinder Turnbuckle Yoke Spindle Safety valve JK-1 Boiler tank

42 SL & SJ series safety valves: Discharging capacity table for LRS (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

43 SL & SJ series safety valves: Discharging capacity table for NK (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

44 SL & SJ series safety valves: Discharging capacity table for DNV (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

45 SL & SJ series safety valves: Discharging capacity table for BV (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

46 SL & SJ series safety valves: Discharging capacity table for KR (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

47 SL & SJ series safety valves: Discharging capacity table for ABS (Unit: kg/h) Series SL Orifice D E F G H J K L M N P Q R T Set P (MPa) Series SJ Orifice F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T Set P (MPa)

48 Installation precautions for safety valves Safety precautions Below is a description about danger or fault that may occur if the following instruction is ignored and improper handling or operation is done Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could resulting in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage. Transporting and storing safety valves Installing safety valves When hoisting a safety valve, do not get under it. To avoid an accident due to a falling object for instance, try to hoist a safety valve as vertically as possible. In addition, never get under a safety valve that is in a hoisted condition. Before hoisting, check the weight of the safety valve and use an appropriate hoisting tool in consideration of the valve weight. Never use the safety valve lever or c