how to calculate cdtp in safety valve pricelist

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The Cold Differential Test Pressure (CDTP)of thePressure Relief Valve (PRV) is a set pressure that is adjusted to be used for the PRV (Bench Testing). Because in actual use conditions, the PRV may be affected by the Backpressure. And the operating temperature. Therefore, when testing at room temperature and without backpressure, it is necessary to adjust the set pressure to compensate for these factors. In other words, the shop test pressure = CDTP.

An example of aCold Differential Test Pressure (CDTP)with abackpressure (superimposed)effect. In this case, CDTP is equal to Set Pressure minus Backpressure.

An example of aCold Differential Test Pressure (CDTP)with different temperature compensations for use and testing. And an example ofCDTP that has been adjusted to compensate for both Backpressure (Superimposed) and temperatureeffects.

Test Stand or Test Bench is a set of equipment used for Pressure Relief Valve (PRV) in Pop Test (Set Pressure Test), Blowdown and Seat Tightness Test (Leakage Test)

As for theBalanced Bellow Pressure Relief Valve, which has a bellowfor reducing the impact of theBackpressure, the Cold Differential Test Pressure (CDTP) of the Balanced Bellow Type PRV will compensate only for the impact of different temperatures between the Shop Test and In-service.

I think that CDTP has been used for set pressure. The data sheet should state both. Set pressure would be 25.5 but this value is stated as the operating pressure.

Note also. The subject Fulflo valves are Hydraulic Bypass Relief Valves and not of the API-520/-526 Pressure Relief Valve variety. A PRV data sheet has been used.

Fulflo"s technical on-line literature acknowledges that back pressure affects set pressure. You also have a non standard CL. 300 outlet flange due to high back pressure. You best check your question with the vendor.

Yes, it is a conventional piston type pressure limiting valve. Set pressure is mentioned as differential pressure. i.e, 7.03 Kg/cm2D. Constant back pressure is 18.47 Kg/cm2g. Presently the valve set in the RV shop test stand is 7.03 kg/cm2g. Our concern is, we would like to know, whether the CDTP value is correct or not? As mentioned by " The Obturator" , I think, set pressure should be mentioned as 25.5 Kg/cm2g instead of 7.03 kg/cm2g. RE: CDTP for Fulflo valve

API 520 part 1 says that the CDTP temperature correction is required when the relieving temperature exceeds 250 F however, my practice with Crosby has showed that when the OPERATING NOT RELIEVING temperature is > 150 F, the correction factor is required, u may find it in Installation manual of the relevant manufacturer i think

2) if the back pressure is constant, subtract it from the set pressure and multiply the resultant answer with the temperature correction factor (SP-BP)* TEMPERATURE CORRECTION FACTOR

3) If the valve is balanced, u have to only consider the temperature correction factors in the case of CROSBY. Not sure about the manufacturer u mentioned

for Anderson greenwood 400 series, piston type modulating valve, i couldn"t find any correction factory in the datasheet also checked with the software by increasing the both relieving and operating temperature to 250 F seems no correction is required , however, api says that u have to consult with the manufacturer RE: CDTP for Fulflo valve

“The Fulflo valves operate on differential pressures but temperature normally doesn’t affect the set pressure at which the valve will open as the valve set pressure and then relieves.”

My concern is how to calculate the CDTP. We have more than 7500 PSVs in our plant. But only these two PSVs having concern, how to calculate the CDTP. In all other PSVs data sheet, set pressure is mentioned in kg/cm2g engineering unit, but in these two pzvs, set pressure is kg/cm2D (Differential pressure).

At present, we have mentioned the CDTP as 7.03 kg/cm2g. As we considered as Set pressure is 25.5 kg/cm2g & constant back pressure is 18.47 kg/cm2g. As mentioned above by " The Obturator" , set pressure should be mentioned as 25.5 Kg/cm2g instead of 7.03 kg/cm2g.

Thats a manufacturer chart not API-520. My earlier point is that API-520 does not give a lower/start limit as suggested (in may have done in an earlier API-520 revision), but to obtain from manufacturer. In the case of FulFlo they have answered that they do not compensate.

Regarding also your attached manufacturers chart. It is incomplete. For example, for Crosby, that is the chart for J series (JOS-E/JBS-E). For steam and other valve types the compensation chart is different. The chart also fails to advise that the compensation factor applies to operating temperatured (too many users have taken relief temperature - note Tai incorrectly state this - see API-520).

There have been some substantial changes to the relevant specifications in the last 20 years, I do notice a lot of people seem to be using services like Scribd for access to old documents which exacerbates this problem.

The temperature compensation factor should be outlined in the manufacturers IOM, The Obturator correctly points out that this should be based on operating not relieving temperature as the impact of the thermal effect will not be observed unless the spring is normally exposed to the high temperature. RE: CDTP for Fulflo valve

I am having API-520 9th edition 2014(find attached screen shot). Regarding the temperature correction factor, we are still using the updated chart from the respective pzv manufacturer. Yes, i agree that the correction factor chart is incomplete, i just copied & send to you for the easy reference only. WE are having every pzv manufacture updated IOM.

Find attached 2nd screen shot for the discussion with Crosby (Emerson) team in Sept 2019. Just i want to inform you that we are aware about the latest edition of API 520.

The last revision of API Standard 520, Part I, Ninth Edition (4.2.3 Cold Differential Test Pressure) provides clarity to the possible ambiguity regarding “service conditions” definition as follows:

“4.2.3.3 The temperature used for the correction factor should be based on the temperature at the inlet to the relief valve at its normal service (nonrelieving) conditions

and also used in sizing software programs (ie: PRV2SIZE, etc.) are based on operating temperature at the valve normal service (nonrelieving) conditions.

As per previous Saudi Aramco pzv procedure, for Crosby PZVs, relieving temperature will be considered as operating temperature, while calculating the temperature compensation. May be you have noticed the highlighted portion from the procedure screen shot. Based on API update, it was updated. Now for any manufacturer pzvs, operating temperature will be considered for CDTP.

Built-up back pressure is the backpressure generated due to pressure losses at the outlet of an open relief valve when it is discharging. This pressure depends on the pressure of the vent header downstream to the relief valve and the relieving flowrate which is being discharged. The built-up backpressure is the pressure in the vent header plus pressure drop in the line from relief valve to vent header, when the valve is discharging at full capacity.

For certain relief valve designs, the backpressure on the valve acts as a closing force and can affect the opening pressure for the valve. ‘Conventional’ valves are highly susceptible to this effect and hence not used in applications where high backpressure is expected. ‘Balanced Bellows’ and ‘Pilot Operated’ relief valves relatively shielded from effects of high backpressure.

For some relief valves (especially conventional type relief valves), the opening of the valve is affected by backpressure seen by the valve. If the backpressure seen by such relief valves is higher than atmospheric, then it has to be designed to open at a lower differential pressure value than the relief valve set pressure minus atmospheric pressure. However when the relief valve is tested before installation, it only sees atmospheric pressure as backpressure. Hence to open this relief valve at same differential pressure value, the set point pressure for opening the valve has to be lower than original design set point pressure. This set point value is known as cold differential test pressure (CDTP).

For pilot operated and balanced bellows type relief valves, effect of backpressure on valve opening characteristics is very low and hence CDTP is the same as the original design set point pressure value.

The conditions at which PRV is set to operate on a test stand could be different from the actual service conditions under which a PRV is required to open in the plant.

​As we had discussed the backpressure that relief valve faces in a closed system would not be present during testing in the shop and this needs to be compensated for conventional relief valves.

However as discussed above the parameter of Temperature correction factor would still be applicable to Bellows and pilot-operated relief valve if the PRV temperature is significantly different from that of ambient temperature.

Project Scenario : A Relief valve of Dresser 1900 Series (Conventional relief valve) valve is required to open at 800 Psig where the service temperature is 400°F and backpressure is 100 Psig.

Did you know, under certain circumstances, you need to verify if the Cold Differential Test Pressure (CDTP) is properly compensated for the superimposed backpressure from the flare header?

Have you come across a conventional pressure relief valve relieving to a flare header? Did you know that, under certain circumstances, you need to verify if the Cold Differential Test Pressure (CDTP) is properly compensated for the superimposed backpressure from the flare header?

API 520 Part I, Ninth Edition, Section 5.3.2.1 says, "Superimposed backpressure at the outlet of a conventional spring-loaded PRV acts to hold the valve disc closed with a force additive to the spring force. The actual spring setting can be reduced by an amount equal to the superimposed backpressure to compensate for this."

It further goes on to say in Sections 5.3.2.2 & 5.3.2.3, "Balanced spring-loaded or pilot-operated PRVs should be considered if the superimposed backpressure is variable. However, if the amount of variable superimposed backpressure is small, a conventional valve could be used provided:

For example, conventional valves are often used when the outlet is piped into a relief header without compensating the set pressures for the superimposed backpressure caused by other relieving devices. This approach can be used provided the allowable accumulation is not exceeded during the release.

Did you know, under certain circumstances, you need to verify if the Cold Differential Test Pressure (CDTP) is properly compensated for the superimposed backpressure from the flare header?

Have you come across a conventional pressure relief valve relieving to a flare header? Did you know that, under certain circumstances, you need to verify if the Cold Differential Test Pressure (CDTP) is properly compensated for the superimposed backpressure from the flare header?

API 520 Part I, Ninth Edition, Section 5.3.2.1 says, "Superimposed backpressure at the outlet of a conventional spring-loaded PRV acts to hold the valve disc closed with a force additive to the spring force. The actual spring setting can be reduced by an amount equal to the superimposed backpressure to compensate for this."

It further goes on to say in Sections 5.3.2.2 & 5.3.2.3, "Balanced spring-loaded or pilot-operated PRVs should be considered if the superimposed backpressure is variable. However, if the amount of variable superimposed backpressure is small, a conventional valve could be used provided:

For example, conventional valves are often used when the outlet is piped into a relief header without compensating the set pressures for the superimposed backpressure caused by other relieving devices. This approach can be used provided the allowable accumulation is not exceeded during the release.

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1 LESER UK Bristol, United Kingdom LESER Germany Hamburg and Hohenwestedt André Ramseyer AG Flamatt, Switzerland LESER China Tianjin, Bejing, Shanghai and Shenzen Prices 2014 LESER worldwide Prices 2014 US Order and Pricing Information, valid from April 1, 2014 until March 31, 2015 LESER Polska Poznan, Poland LESER USA Charlotte (NC) LESER Brazil Rio de Janeiro LESER France Toulouse LESER Singapore Singapore LESER Bahrain Al Manamah LESER India Mumbai and Paithan LESER Regional Center LESER stock and local assembly LESER representative Edition April 2014/4,600 The-Safety-Valve.com The-Safety-Valve.com LESER LLC Texland Boulevard, Suite 100 Charlotte, NC 28273, USA Fon Fax US

2 Contents General Page News 4 The Company 12 Spotlight 13 Valve finder 14 How to use 15 Glossar LESER Option codes 17 How to order 18 Compact Performance 20 Safety Relief Valve 437, 437 Long version 22 Safety Relief Valve, O-ring-disc 438, 438 Long version 23 Safety Relief Valve, vulcanized soft seal Overview connections Threaded NPT, G/BSPP Series Flanged ANSI Safety Relief Valve Safety Relief Valve, O-ring-disc Safety Relief Valve 459 Heavy duty design 30 Overview threaded connections NPT, G/BSPP Series Overview flanged connections ANSI Series Spare parts Series Spare parts kits Series 459, Spare parts Series Soft seal selection Series 437, Available options Series 437, Page API 41 Safety Relief Valve 5262 WCB 42 Safety Relief Valve 5264 CF8M 44 Safety Relief Valve 5267 WC6 46 Safety Relief Valve 5263 LCB 48 Safety Relief Valve 526X SAFUREX 50 Options Series Sour gas service NACE Series Outlet flange rating class 300 Series Flange drillings acc. to ASME Series Flange facings Series Weights Series Flange drillings acc. to DIN Series Spare parts kits Series Spare parts Series Soft seal selection Series Available options Series High Efficiency 79 Safety Relief Valve WCB 8112 Pop Action 80 Safety Relief Valve CF8M 8114 Pop Action 82 Safety Relief Valve LCB 8113 Pop Action 84 Options Safety Relief Valve WCB 8212 Modulate Action 90 Safety Relief Valve CF8M 8214 Modulate Action 92 Safety Relief Valve LCB 8213 Modulate Action 94 Options Weights 811, Flange drillings and flange facings 811, Inspections, Certificates 811, Spare parts kits 811, Available options 811, Compact Performance API High Efficiency High Performance 2

3 Contents Page High Performance 109 Safety Relief Valve 441, 442 ANSI 110 Safety Relief Valve 441, 442 XXL 112 Safety Relief Valve 441, 442 DIN 114 Safety Relief Valve 444 ANSI 116 Spare parts kits Series 441, 442 DIN/ANSI 117 Flange drillings Series Flange facings Series Safety Relief Valve Series 457, Spare parts Series Spare parts Series 441 XXL 124 Available options Series 441, Page Critical Service 141 Safety Relief Valve, fully PTFE-lined Available options Modulate Action 145 Safety Relief Valve 431, Available options Series Series Change-over valve Clean Service 127 Safety Relief Valve, small capacity Safety Relief Valve, small and medium capacity Safety Relief Valve Vessel flange, dead space free Safety Relief Valve Integrated pipework connection, dead space free Safety Relief Valve, high capacity 488 HyTight 134 Spare parts Series 48X 136 Available options Series 48X 140 Contacts & Services 158 Cleaning and Painting 160 Coating systems, Corrosion protection 161 Marking 162 LESER Certificate for Global Application 164 Specific testing 166 Overview tightness test 168 Material test certificate 170 Test and Certificates 171 Springs 172 Availability from Charlotte stock 173 Delivery times API Availability 174 Delivery / Shipping information 175 Delivery times 176 US Prepaid Freight Charges 177 Contact, Ordering and Delivery 178 VALVESTAR 179 Clean Service Critical Service Modulate Action Change-over valve 3

4 News High Pressure Pilot Operated Safety Valves LESER has extended the range of its product group High Efficiency with a new Pilot Operated Safety Valve (POSV) for high pressures from 102 to 256 bar / 3,705 psig. Launch of series production is now complete: Pilot operated safety valves for high pressures up to class 1500 / PN 250 will start shipping in February With more than 1800 POSVs sold to date, the Pilot-Operated Safety Valve is already a success story. With this, LESER is one of the few full suppliers of pilot-operated and spring-loaded safety valves according to API 526. An expansion of the pilot operated safety valve operating range for up to 426 bar / 6,710 psig is in progress and market launch is planned for In addition to the higher permissible pressures, LESER also offers a number of innovative product configurations for industry-specific options. The new valve covers outlet flange ratings class 300 x 300 and 600 x 300 which go beyond API 526 but are often required in plants. For high pressures as well as high temperatures, LESER offers a version with a stellited disc. With this method, the sealing surfaces are especially hardened which offers a high functional tightness. Higher tightness requirements at especially low temperatures can be fulfilled with the new sealing plate made of PEEK or PTFE inside the main valve. A full nozzle design is required for industrial processes with corrosive media. LESER is one of the few suppliers offering a high pressure pilot-operated safety valve with a full nozzle with the same leadtimes as the standard semi nozzle version. Another improvement was achieved in making seals more resistant to explosive decompression (ED Design), an important factor in petrochemical and other applications with high pressures. For applications with high back pressures or special requirements for tightness up to set pressure, a pilot-operated safety valve can often be an attractive alternative to spring-loaded safety valves. The flange ratings up to 1500 x 300 and the new option codes R3A and R3B can already be ordered. About the availability of further options we will inform you by LESER News and on The pilot-operated safety valve Type 810 (left) and the new valve for high pressures up to 256 bar / 3,705 psig 4

5 News General LESER VALVESTAR available: Sizing and selection now possible for pilot operated safety valves with pressures up to 256 bar LESER has completed the new VALVESTAR version For years VALVESTAR has been used for simple and safe sizing based on the most commonly internationally used calculation standards. Version includes the following improvements: Integration of the pilot operated safety valves for high pressures: All pilot operated safety valves (POSV) for high pressures have been implemented with 234 new article numbers. In this way, users can calculate POSV up to PN 250/CL1500 respectively 256 bar/3705 psig and select them as alternative to spring-loaded safety valves. ASME VIII steam calculation for POSV: This calculation has been added for POSV because the soft sealing material EPDM is used steam temperature up to 150 C are possible. Product data: Some parts of the product data base have been completely revised. Among other points new options and cold differential test pressure calculations have been added and the user can now select a complete option list including e.g. the extended PMI test with option codes N55 to N57. Product series: The following old types have been removed: , , , , Type 424, Type 448, Type 450, , Type 532, Type 534 Get the latest version for free. Following possibilities can be found on the LESER website services/valvestar Update your version to VALVESTAR (requires version 7.2.1) Download VALVESTAR as a program 5

6 General News LESER expands Level 3 of the API Alloy Concept The level system guarantees that components that are required for a respective application are designed in high alloy materials. The definition of five levels and consequently the standardization bring clear customer benefits: economic solutions, short lead times and a simplified order process by means of Option Codes. Level 1 and 2 are fully available. Components for level 3 are now standardized step by step. This level is designed for customer requirements where the inlet as well as the outlet are wetted by media and must be protected by high-alloy materials. This level will exclusively be available as version 3.1 that means as bellows version because only in this way the parts within the bonnet can be protected safely. All other levels have been, respectively will be developed in the version x.0 conventional design and x.1 bellows design. Overview API Alloy Concept Inlet medium wetted Inlet and guiding medium wetted Inlet and outlet medium wetted Valve external Valve complete Level 1.0 Level 1.1 Level 2.0 Level 2.1 Level 3.1 Level 4.0 Level 4.1 Level 5.0 Level 5.1 Standardized options In stand ardi zation Available as engineering solutions The body for level 3 is already available. As of now also adjusting rings, lock screws as well as body plugs are offered in five additional materials as standard. Here, lock screws and body plugs are controlled by a joint Option code and the adjusting ring has a separate Option code. Adjusting ring Lock screw and body plug Material Option code Material Option code Duplex K1P Duplex K2P Super Duplex K1Q Super Duplex K2Q Monel K1M Monel K2M Hastelloy K1N Hastelloy K2N Inconel K1O Inconel K2O Further components such as additional bellows designs, lifting aid or bonnet spacer will still be implemented to complete level 3. 6

7 News General Corrosion protection is more than just painting! LESER supplements the external corrosion protection coating options with some products which meet the highest international standards, including testing and documentation. The new corrosion protection options include the surface preparation and coating of all external surfaces which come into contact with the environment, and go far beyond simple coloration according to LESER standards. Standard painting - Base color - One layer LESER Coating systems for marine environment - Three to five layers - P90 / P91 Corrosion protection acc. to - DIN EN ISO Norsok M FROSIO-certified - Tests and inspections With its new corrosion protection systems, LESER satisfies the strictest requirements of the international standards according to ISO, Norsok and NACE. Three new Option codes have been created for this purpose. Material Temperature range -196 C up to -50 C -50 C up to 120 C (C5-M) Austenitic steels P89 P88 Nonalloyed steels P86 LESER also offers four new tests including documentation for the corrosion protection systems: Measurement of dry film thickness Holiday Test Pull Off Test (Cross-Cut Test) Option code P84 Option code P83 Option code P82 Option code P81 FROSIO corrosion protection certificates are also available from LESER. Testing and documentation are carried out in-house by FROSIO-certificated LESER employees (Level I) or by means of external inspection by an independent third party (Level III). More details can be found on page 161. About the availability will be informed with a LESER News. 7

8 General News LESER presents application-oriented solutions for FPSOs The harsh offshore environment and specific characteristics of oil and gas as a medium pose challenges to equipment on oil and gas installations. The API product group of flanged safety valves is an ideal fit for applications on board FPSOs. The valves not only meet all the requirements of API 526 such as standardized orifices and center-to-face dimensions, but their robust construction with hardened or stellited discs and stellited seats makes them especially suitable for high pressures. and power generation. The special technical requirements for this type of equipment result from the diverse media and processes on an FPSO as well as the seawater environment in which it operates. Corrosion resistant safety valves required For sea water or seawater hydrocarbon emulsions as a protected medium, valve materials must be especially resistant to corrosion in order to enable longer service intervals and to ensure the operational reliability of the safety valve. LESER pressure relief valves are available in various levels of corrosion resistance which can easily be configured according to individual application in short lead times. With the API Alloy Concept, LESER offers duplex and super-duplex materials as well as nickel-based materials like Monel, Hastelloy and Inconel in configurations for different corrosion protection levels. With regard to sour gas (H 2 S) service, valve materials must comply with the specifications of the National Association of Corrosion Engineers (NACE) MR0175/ ISO With a wet and salty external environment, the outside shell of the valve must also be made from corrosion-resistant materials or be adequately coated. MR0175-compliant valve configurations can be ordered as well as multi-layer and epoxy coatings. ABS and US Coast Guard approval for LESER valves Pilot operated safety valves from the High Efficiency product group are also an ideal fit for FPSO applications because of their smaller size and lower weight than traditional spring-loaded safety valves. Pressure relief or safety valves are used on FPSOs to protect the different topside modules for oil and gas separation and treatment, compression, water injection FPSOs and equipment installed on board require class society approval. LESER s valves have been type approved by ABS and the US Coast Guard as well as a number of additional classification societies. In order to allow for international operation of an FPSO, spare parts and replacement valves must be available around the globe. LESER supports its clients with an international network of local storage to ensure availability with short lead times. 8

9 News General New options for NACE MR0103 and material test certificates save time and effort For sour gas applications in the oil and gas industry, LESER now offers both the familiar Option code N78 for NACE MR0175 (upstream) and also a standardised option for NACE MR0103 (downstream) in the form of Option code N77. The Option code controls both the design of the valve components in question and the necessary documentation, thus making compliance with NACE requirements faster and more economical. The provision of material test certificates and PMI tests for further components is also simplified. Please note that the material test certificates are in some cases 2.2 certificates. The following table provides an overview of the new Option codes: Material test certificate DIN EN Option code Adjusting ring DIN EN H2D Spring plate DIN EN H2F Adjusting screw DIN EN H2G Gasket DIN EN H2H Lock screw DIN EN H2J Material test certificate DIN EN Guide DIN EN N95 Bonnet spacer DIN EN H2E Spindle DIN EN N94 Bellows metal DIN EN N96 Elastomer bellows DIN EN N96 Outlet flange DIN EN N3B Outlet connection DIN EN N3A Material identification check PMI Material identification check (PMI) Inspection certificate 3.1 acc. to DIN EN included Spindle Guide Bonnet Spring Bellows Cap/Lifting device Top plate (POSV) Piston guide (POSV) Spring (POSV Item 59) Option code N1A N1B N1C N1D N1E N1F N1G N1H N1J Seminars 2014 Everything you should know about safety valves Today more than ever the commercial success of a company is influenced by the qualification of its employees. The advancement and development of technical knowhow provides strategic advantages in the competitive international arena. LESER"s well-tailored selection of seminars offers our customers the opportunity to gain indepth knowledge on the topic of safety valves. Please contact your local LESER representative for registration or questions. 9

10 General News Approved Safety Valve Vendor for International Corporations Exxon Mobil has approved LESER as a qualified manufacturer. Many other big companies have added LESER to their Approved Vendors List in End users and EPCs carefully screen those companies that supply material and products for oil and gas plants, chemical complexes or industrial parks. For OEMs, it is important to have a valve supplier that is listed by their end user. This screening involves review of many documents and often also an audit of LESER s production and assembly facilities. What is checked are not only technical aspects of the product but also quality procedures of production and health, safety and environmental aspects. LESER safety valves have been approved by many companies and in 2013 several approvals have been added to the list. ExxonMobil LESER is on the Qualified Manufacturers List (QML) of ExxonMobil. The LESER production and assemblies in Hohenwestedt/Germany, Charlotte, North Carolina/USA and other locations have successfully passed the approval process for ExxonMobil projects. Saudi Aramco In spring 2013, not only was the Al-Jubail production facility of LESER s sales partner Binzagr awarded ASME certification, it was also approved as a local approved company by Saudi Aramco. This means that, after long and careful preparation in partnership with Binzagr, the local LESER production in KSA is now an approved supplier for oil and gas projects in one of the most important regions in the world in this industry. Photo: Saudi Aramco, Hawiyah NGL Recovery Plant Over the past 12 months, LESER has been added to the approved vendor s list of the following European companies: Mahle Filtration France, CB&I, Cameron CPS, STSI d.o.o, WÄRTSILÄ, E&P and INA. In the US, LESER has also been approved as a vendor in 2013 for Bechtel, KBR and Cameron Industries. Saudi Arabian Mining Company in the Middle East has added LESER. Numerous leading companies have listed LESER as an approved vendor on their Approved Material List (AML). Existing approvals include Dow Freeport, Technip, Parsons, Foster Wheeler, Fluor and Linde. A list of many companies which prequalified LESER as a supplier is available on our website at 10

11 News General Schedule of trade shows 2014 LESER and the LESER subsidiaries and partners will once again participate in a variety of both domestic and foreign fairs. Take advantage of the opportunity to familiarise yourself with LESER"s product innovations on site, such as the pilot operated safety valve for high pressures, VALVESTAR and the entire LESER product portfolio and services. Date Trade show Country Town Exhibitor February 2014 Australian Oil and Gas Exhibition and Conference Australia Perth Pressure Systems Pty. Ltd February 2014 NITROGEN + SYNGAS France Paris LESER GmbH & Co. KG March 2014 INTERPHEX USA New York LESER LLC March 2014 CIPPE China Beijing LESER - The Safety Valve (Tianjin) Ltd March 2014 Gastech South Korea Seoul LESER GmbH & Co. KG March 2014 Pumps & Valves Belgium Antwerp MRC Transmark March th Power & Alternative Energy Asia 2014 Pakistan Karachi PES Professional Engineering Services 30. March 2. April 2014 Oil & Gas West Asia Oman Muscat Gulf Services & Industrial Supplies Co. LLC May 2014 Petrotech Bahrain Manama LESER Middle East May 2014 Keymica France Paris LESER S.a.r.l May 2014 Neftegas Russia Moscow LESER GmbH & Co. KG May 2014 POGEE 2014 Pakistan Lahore PES Professional Engineering Services August 2014 Fenasucro Brazil Sertãozinho LESER Valvulas de Segurança Ltda August 2014 ONS 2014 Norway Stavanger Armatec AS September 2014 SMM Germany Hamburg LESER GmbH & Co. KG September 2014 Rio Oil & Gas Brazil Rio de Janeiro LESER Valvulas de Segurança Ltda. 30. September 3. October 2014 Expoquimia Spain Gran Via Venue BVALVE FLOW SYSTEMS AND CONTROLS October 2014 Chillventa Germany Nuremberg LESER GmbH & Co. KG November 2014 CSP Today International Spain Sevilla BVALVE FLOW SYSTEMS AND CONTROLS December 2014 Valve World Germany Düsseldorf LESER GmbH & Co. KG December 2014 OSEA Singapore Singapore LESER GmbH & Co. KG 11

12 General The Company LESER GmbH & Co. KG and LESER LLC With more than 700 employees, LESER is the largest manufacturer of safety valves in Europe and a leader in its market worldwide. LESER safety valves are developed for the international market at our headquarters in Hamburg/Germany and tested on our certified test stand. Production, with a capacity of over 130,000 valves a year, takes place at our modern factory in Hohenwestedt/Germany. Eight subsidiaries in Europe, America, the Middle East, and Asia, as well as authorized and trained representatives in over 80 countries guarantee competent consulting for all industrial applications. LESER safety valves protect people and the environment in the chemical, petrochemical, industrial gases, oil and gas production, and machine building branches, as well as the food and pharmaceutical industries. Growth in the North American market led LESER to found its first fully owned subsidiary, LESER LLC in Charlotte, North Carolina in LESER LLC has now formed a sales, distribution, and service network which includes its own stocking and assembly facility. Now LESER is able to supply high quality ASME-code stamped safety valves to North America for a full range of applications. All LESER Safety Valves carry CE and ASME UV Time line 1885 Complete range of steam fittings, incl. safety valves 1957 First test lab for safety valves 1980s Leading supplier for safety valves in Europe 1994 Test lab receives ASME certification (first and only outside of the US) 2003 Launch of the API Series 1818 Founded as a brass foundry in Hamburg, Germany 1943 Destruction of the plant, relocation and founding of new factory in Hohenwestedt, Germany 1970s Specialization in safety valves 1990 First ASME approval 1998 First subsidiary founded 2010 Launch of the Pilot Operated Safety Valve 12

13 Spotlight General Spotlight on LESER LLC in Charlotte, North Carolina High Performance staff All LESER LLC employees have a high level of expertise and go through rigorous training. Training is considered a continual process and not a one-time activity. With a High Performance staff, LESER LLC is able to provide fast and detailed responses for all customers. Fast delivery LESER LLC carries 4 million USD worth of stock in valves and parts at its Charlotte, NC facility. LESER is able to supply safety valves in 1 week or less (same-day possible for emergencies) and sameday for spare parts. Global approvals and setting facility LESER LLC is able to supply valves into applications requiring the UV stamp, CE mark, and other world-wide approvals from stock. LESER LLC maintains a fully operational assembling and setting facility which is certified by the ASME, National Board. Every safety valve is thoroughly tested to ensure the valve is tight and is functioning properly. Factory-equivalent support LESER LLC s sales system is directly integrated with LESER s factory in Germany. This direct link allows LESER LLC to provide accurate delivery times for factory direct shipments. LESER LLC also has daily contact with and is regularly visited by factory specialists, ensuring strong product knowledge. Regular training keeps LESER LLC employees focused and updated on any code or product changes that might occur. In the end, LESER LLC is able to provide factory-equivalent support. 13

14 General Valve finder Product group High operating to set pressure ratio, high backpressure or low total height? Yes High Efficiency Mediumcontrolled No Clean Service application? Yes Clean Service No Critical Service / highly corrosive application? Yes Critical Service No API specified application? No Steam, gas and liquid application with low capacity in relation to valve size? Yes Yes API Modulate Action Spring loaded Safety Relief Valves No Orifice F High Performance Required Orifice letter? Orifice F Compact Performance Products other than safety valves Yes Best Availability Changeover valve Bursting disc 14

15 How to use High Performance General Type 441, 442 ANSI Valve size 1" x 2" 1 1 / 2 " x 2" 1 1 / 2 " x 2 1 / 2 " 2" x 3" 3" x 4" 2 4" x 6" Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation F G H K L P API Orifice area A 0 [inch 2 ] Weight [lb] Body material: WCB CL300 Bonnet 7 H2 Art.-No closed $1,169 $1,318 $1,586 $2,136 $2,845 $4,669 Bonnet open H3 Art.-No $1,216 $1,402 $1,671 $2,220 $2,960 $4, H4 Art.-No $1,271 $1,485 $1,755 $2,304 $3, $4,935 H3 Art.-No $1,216 $1,402 $1,671 $2,220 $2,960 $4,784 11a 11b p [psig] S/G/L (740) (500) Options Type 441, 442 ANSI Special machining of flange per flange $167 $167 $167 $167 $268 $268 Disc 316L L44 $60 $84 $84 $84 $134 $167 NBR N J30 $117 $150 $150 $150 $268 $ O-ring-disc CR K J21 $117 $150 $150 $150 $268 $435 EPDM D J22 $117 $150 $150 $150 $268 $435 Explanations Type 441, 442 ANSI No. Description Example No. Description Example 1 Type (without material identification no.) Valve code Valve size 3" x 4" 10 Price (in US-Dollar) $3,111 3 Actual Orifice diameter d 0 [mm] Pressure range/set pressure (500) Actual Orifice area A 0 [inch 2 ] Weight [lb] 73 Body material Bonnet Lifting device WCB closed H Minimum set pressure 360 (500) 360: Maximum set pressure (500): Maximum set pressure with special spring (additional price and longer delivery time) Approval (S: Steam, G: Gases, L: Liquids) Option S/G/L O-ring-disc H2 Screwed cap H3 Plain lever H4 Packed lever (H8 Pneumatic lifting device) Option code J21 Price for option (in US-Dollar) $268 Material code 2 17 Article Number Order code 15 Article Number Set pressure 1) Connections Options Documentation Code and Medium psig H64 J21 H01 L ) For minimum and maximum set pressure refer to API Catalog. 15

16 General How to use Signs and symbols General signs and symbols for options This option is covered by standard design * x Not applicable Possible Not possible Sign and symbols for flange drillings and facings Standard design, no option code required * Flange drilling / Flange facing is not possible ( * ) Flange dimensions except flange thickness are in accordance with flange standard (e. g. ASME B16.5). Flange thickness is smaller (max. 2 mm), see Multiple pressure rating. Option code for flange drilling and dimension, e. g. H50 Flange standard: light blue LESER: light blue + dark blue H50 Flange drilling as specified in flange standard. Outer flange diameter, flange thickness and height of flange facing may be larger, see Dimensions. Flange standard: light blue + dark blue LESER: light blue (H50) Flange dimensions except flange thickness are in accordance with standard. Flange thickness is smaller (max. 2 mm), see Multiple pressure rating. Flange standard: light blue + dark blue LESER: light blue [H50] Flange drilling as specified in standard. Flange thickness may be smaller. Outer flange diameter is smaller than required, but complete back side facing for nut is assured. Option code for flange facing, e. g. L36 L36 Flange facing as specified in flange standard 16

17 How to use General Glossar LESER Option codes For ordering and technical specification of LESER safety valves so-called Option codes are used. Materials, connections, accessories and documentations (certificates and inspections) can be specified quick and comfortable. Therefore the order transaction can be reduced. Option codes are mentioned in several different documents. These documents are among others: Order confirmation and shipping documents (Fig. 1) Master agreement LESER Product catalogs VALVESTAR sizing software Inspection certificate LESER Work standards Price list How to order (Fig. 2) Option pages of each safety valve Option icons available options of each product group Technical specification: Ordercode output, line 1: Body material: Nominal diameter inlet DN 25 Nominal diameter outlet DN 40 d 0 [mm] 23,0 Pressure rating inlet Pressure rating outlet Flange facing inlet Flange facing outlet Fig. 1: Extraction of order confirmation M33X00H88H84H51H45H20 (H20) (GG25) (H45) PN 16 acc. to DIN EN 1092 (H51) PN 16 acc. to DIN EN 1092 (H84) Form B1 acc. to DIN EN 1092 (H88) Type 441, 442, 444 Option code O-ring disc CR K J21 EPDM D J22 FKM L J23 FFKM C J20 Disc / 316L L44 Disc / 316L stellitiert J25 Elastomer bellows J79 Stainless steel bellows Bonnet open (Type 442) J68 Fig. 2: Extraction of How to order 17

18 General How to use How to order Series 441 Example for numbering system 3 1Article Number 2Set Pressure Connections psig H Valve Type 441, 442, 444 Please state unit (in gauge)! Please do not exceed the pressure range defined in the spring charts. Available flange drillings and flange facings please refer to each product catalog. Type Page 441, 442 ANSI , 442 XXL , 442 DIN ANSI Material code Code Body material 2 WCB Carbon steel 4 316L / CF8M / 316Ti 5 Gr Valve code 4 Identifies valve size and body material. Code Lifting device 2 Screwed cap H2 3 Plain lever H3 4 Packed lever H4 5 Plain lever with open bonnet H3 18

19 How to use General Options Documentation Code and Medium J23 H01 L Type 441, 442, 444 Option code Please select required documentation: 1 2 O-ring disc CR Neoprene K J21 EPDM Buna-EP D J22 FPM/FKM Viton L J23 FFKM Kalrez C J20 Disc 316L Disc 316L stellited L44 J25 Stainless steel bellows - Bonnet open (Type 442) J68 - Bonnet closed (Type 441) J78 Elastomer bellows High temperature alloy spring Stainless steel spring J79 X01 X04 Adaptor for lift indicator H4 J39 Lift indicator J93 Test gag - Cap H2 J70 - Packed lever H4 J69 Inspections, tests: LESER CGA (Certificate for Global Application) - Inspection certificate 3.1 acc. to DIN EN Declaration of conformity acc. to PED 97/23/EC Material test certificate: DIN EN Part Body Bonnet Cap / Lever cover Disc Studs Nuts Option code H03 Option code H01 L30 L31 L23 N07 N Code 1. ASME Section VIII 2. CE / VdTUEV 3. ASME Section VIII + CE / VdTUEV Medium.1 Gases.2 Liquids.3 Steam.0 Steam / Gases / Liquids (valid only for CE / VdTUEV) Heating jacket for body - Couplings NPT H30 - Lap joint flanges H32 Drain hole 1 / 4 " J18 1 / 2 " J19 Free of oil and grease J85 Materials - NACE MR0175 N78 - NACE MR0103 N77 Marking with stainless steel tag M29 Option code applies only if not standard 19

21 Compact Performance Compact Performance Safety Relief Valves Series 437 Page Type Type Type Connections Series Series 459 Page Type Type Type 459 Heavy duty design 30 Connections Series Spare parts Page Spare parts Series Spare parts kits Series Spare parts Series Soft seal selection 39 Available options 40 21

22 Compact Performance Type 437 For soft seal selection please refer to page 39 Delivery time depends on type of connection Metal seat 4373: Chrome steel Type 437 Standard Long Version for high pressures Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] Weight threaded [lb] Weight flanged [lb] Base / Inlet body 316L H2 Art.-No Trim 316L $312 $455 Outlet body / H3 Art.-No bonnet 430 p max = 145 psig $356 H4 Art.-No $408 $ : Stainless steel p [psig] S/G/L All parts 316L H2 Art.-No $599 $830 H4 Art.-No $740 $973 p [psig] S/G/L Starting from 15 psig the safety valve is certified acc. ASME Code Sec. VIII, Div. 1. *) LEO S/G = LESER Effective Orifice steam/gas; LEO L = LESER Effective Orifice liquids. Options Base / Inlet body stellited L20 $167 Disc stellited J25 $167 $167 Disc 1) 316L L44 $33 $33 PTFE-FDA J44 $167 $167 * Plastic seat 2) PCTFE J48 $334 $334 Test gag Vespel-SP1 J49 $502 $502 H4 J69 H2 J70 $134 $134 Heating jacket for body H29 $836 $836 High temperature alloy spring X01 $33 $33 Spring X04 $33 $33 Inconel X08 $301 $301 Marking with stainless steel tag M29 $27 $27 Free of oil and grease J85 $167 $167 Connections Available connections see page 25 1) Valid for 4373 chrome steel 2) See page 39 for plastic material limitations 22 LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves

23 Compact Performance Please state O-ring material Delivery time depends on type of connection Type 438 O-ring-disc Type 438 Standard Long Version for high pressures Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D D D LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] Weight threaded [lb] Weight flanged [lb] O-ring-material See page 39 for elastomer limitations NBR N J30 NBR N J30 Buna-N Buna-N CR K J21 CR K J21 Neoprene Neoprene EPDM D J22 Buna-EP FPM/FKM L J23 FFKM C J20 Viton Kalrez EPDM D J22 Buna-EP FPM/FKM L J23 FFKM C J20 Viton Kalrez 4383: Chrome steel Base / Inlet body 316L H2 Art.-No Trim 316L $472 $812 $613 $981 Outlet body / H3 Art.-No bonnet 430 p max = 232 psig $515 $854 H4 Art.-No $567 $904 $709 $1,077 p [psig] S/G/L : Stainless steel All parts 316L H2 Art.-No $757 $1,125 $990 $1,358 H4 Art.-No $899 $1,267 $1,131 $1,499 p [psig] S/G/L * ) LEO S/G = LESER Effective Orifice steam/gas; LEO L = LESER Effective Orifice liquids. Options Test gag H4 J69 H2 J70 $134 $134 $134 $134 Heating jacket for body H29 $836 $836 $836 $836 Spring High temperature alloy X01 $33 $33 $33 $33 Stainless steel X04 $33 $33 $33 $33 Inconel X08 $301 $301 $301 $301 Marking with stainless steel tag M29 $27 $27 $27 $27 Free of oil and grease J85 $167 $167 $167 $167 Connections Available connections see page 25 LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves 23

24 Compact Performance Type 439 Vulcanized soft seal for highest tightness requirements at low set pressure Please state soft seal material Delivery time depends on type of connection Vulcanized soft seal Type 439 Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] Weight threaded [lb] Weight flanged [lb] Soft seal material See page 39 for elastomer limitations Starting from 15 psig the safety valve is certified acc. ASME Code Sec. VIII, Div. 1. *) LEOS/G = LESER Effective Orifice steam/gas; LEOL = LESER Effective Orifice liquids. NBR Buna-N N J30 CR Neoprene K J21 EPDM Buna-EP D J22 FPM/FKM Viton L J23 FFKM Kalrez C J : Chrome steel Base / Inlet body 316L H2 Art.-No Trim 316L $472 $812 Outlet body / H3 Art.-No bonnet 430 p max = 145 psig $515 $854 H4 Art.-No $567 $904 p [psig] S/G/L : Stainless steel All parts 316L H2 Art.-No $757 $1,125 H4 Art.-No $899 $1,267 p [psig] S/G/L Options Test gag H4 J69 H2 J70 $134 $134 Heating jacket for body H29 $836 $836 High temperature alloy spring X01 $33 $33 Spring X04 $33 $33 Inconel X08 $301 $301 Marking with stainless steel tag M29 $27 $27 Free of oil and grease J85 $167 $167 Connections Available connections see page LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves

25 Compact Performance Available connections Series 437 Threaded connections Valve size Option code d 0 10 mm / inch 2 Inlet Outlet Additional price Option code Additional price Male thread ANSI/ASME B / 2 " V61 $0 NPT 3 / 4 " V62 $0 1" V63 $0 Female thread ANSI/ASME B / 2 " V58 $84 V70 $0 How to find the price for threaded connections Step 1: select orifice size column (ex. 10 mm) Step 2: select inlet column Step 3: select thread type section (ex. male thread NPT) Step 4: select size row (ex. 1") Step 5: repeat steps 1 to 4 for the outlet Series 437 Connections NPT 3 / 4 " V59 $84 V77 $0 1" V60 $84 V71 $0 Male thread DIN ISO / 8 " V49 $84 G / BSPP 1 / 2 " V54 $0 3 / 4 " V55 $0 Male thread 1" V56 $0 Female thread DIN ISO / 2 " V50 $84 V65 $117 G / BSPP 3 / 4 " V51 $84 V76 $117 1" V52 $84 V66 $117 Female thread Flanged connections Flange size Additional price Class ANSI/ASME B / 2 " 3 / 4 " 1" $234 $468 $234 $468 $234 $468 Flanged and threaded connections can be combined. Threads and flanges according to other standards, e.g. ISO, BSP, DIN, JIS are available. Please specify in writing (diameter, pressure rating, standard). d 0 10 mm / inch 2 Option code Inlet Outlet 150 V01 V V02 V V02 V V03 V V V V05 V V06 V V06 V V07 V V V V09 V V10 V V10 V V11 V V V12 How to find the price for flanged connections Step 1: select orifice size column (ex. 10 mm) Step 2: select inlet column Step 3: select size row (ex. 1") Step 4: select pressure class row (ex. CL150) Step 5: repeat steps 1 to 4 for the outlet Flanged version Please note: Only certain connection combinations are kept in Charlotte stock. Please see page 173 Availability from Charlotte stock. 25

26 Compact Performance Type 459 Delivery time depends on type of connection Metal seat Type 459 Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D F LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] API eff. Orifice area [inch 2 ] Weight threaded [lb] Weight flanged [lb] : SG-iron Base / Inlet body 316L H2 Art.-No Trim 316L $402 $402 $494 Outlet body (Gr ) H3 Art.-No Bonnet (Gr ) $447 $447 $539 H4 Art.-No $497 $497 $589 p [psig] S/G/L ) ) ) 4592: Carbon Steel Base / Inlet body 316L H2 Art.-No Trim 316L $498 $498 $668 Outlet body WCB H3 Art.-No Bonnet SA 105 $543 $543 $711 H4 Art.-No $594 $594 $763 p [psig] S/G/L : Stainless steel outlet body investment casted Base / Inlet body 316L H2 Art.-No Outlet body, casted CF8M $818 $818 $1,189 Bonnet 316L H4 Art.-No $1,102 $1,102 $1,473 p [psig] S/G/L : Stainless steel outlet body deep-drawn All body and H2 Art.-No trim parts 316L $899 $899 $1,307 H4 Art.-No $1,184 $1,184 $1,591 p [psig] S/G/L Starting from 15 psig the safety valve is certified acc. ASME Code Sec. VIII, Div. 1. 1) The design of Type 4593 is permitted with limitations acc. to ASME-Code Sec VIII, Div. 1, UCD-2, UCD-3. Type 4593 shall not be used for lethal substances, irrespective of their state of aggregation. * ) LEOS/G = LESER Effective Orifice steam/gas; LEOL = LESER Effective Orifice liquids. 26 LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves

27 Compact Performance Type 459 Options Type 459 Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] Weight threaded [lb] Base / Inlet body stellited L20 $167 $167 $167 Disc stellited J25 $167 $167 Disc 1) 316L L44 $33 $33 $33 Plastic seat 2) PTFE-FDA J44 $167 $167 $167 Test gag Stainless steel bellows PCTFE J48 $334 $334 $334 Vespel-SP1 J49 $502 $502 $502 H4 J69 $134 $134 $134 H2 J70 $134 $134 $134 p 580 psig J78 $301 $301 $301 p > 580 psig J55J78 $468 $468 $468 Elastomer bellows J79 $167 $167 $167 Heating jacket for body H29 $836 $836 $836 Spring High temperature alloy spring 1) Valid for SG-iron and carbon steel 2) See page 39 for plastic material limitations 3) Adaptor and lift indicator are available from Charlotte with stainless steel lifting device X01 $33 $33 $ X04 $33 $33 $33 Inconel X08 $301 $301 $301 Adaptor for lift indicator 3) H4 J39 $167 $167 $167 Lift indicator 3) J93 $502 $502 $502 Marking with stainless steel M29 $27 $27 $27 Free of oil and grease J85 $167 $167 $167 Gasket GYLON (filled PTFE) L68 $100 $100 $100 Solar valve Type 4592 d 0 = 13 mm The Compact Performance Safety Valve Type 4592 d 0 = 13 mm has among others following options: Inconel bellows and Inconel spring Inlet and outlet as welding end Sigraflex high pressure gasket High temperature coating N80 $1,170 Connections Available connections see page 52 and 53 LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves 27

28 Compact Performance Please state O-ring material Type 462 Delivery time depends on type of connection O-ring-disc Type 462 Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D F D D F LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] API eff. Orifice area [inch 2 ] Weight threaded [lb] Weight flanged [lb] O-ring-material See page 39 for elastomer limitations NBR Buna-N N J30 J30 J30 CR Neoprene K J21 J21 J21 EPDM Buna-EP D J22 J22 J22 FPM/FKM Viton L J23 J23 J23 FFKM Kalrez C J : SG-iron Base / Inlet body 316L H2 Art.-No Trim 316L $589 $589 $681 $957 $957 $1,015 Outlet body (Gr ) H3 Art.-No Bonnet (Gr ) $634 $634 $726 $1,002 $1,002 $1,094 H4 Art.-No $686 $686 $778 $1,054 $1,054 $1,108 p [psig] S/G/L ) ) ) ) ) ) 4622: Carbon Steel Base / Inlet body 316L H2 Art.-No Trim 316L $687 $687 $855 $1,020 $1,020 $1,223 Outlet body WCB H3 Art.-No Bonnet SA 105 $731 $731 $899 $1,099 $1,099 $1,267 H4 Art.-No $782 $782 $951 $1,112 $1,112 $1,319 p [psig] S/G/L : Stainless steel outlet body investment casted Base / Inlet body 316L H2 Art.-No Outlet body $1,005 $1,005 $1,375 $1,373 $1,373 $1,686 casted CF8M H4 Art.-No Bonnet 316L $1,289 $1,289 $1,662 $1,658 $1,658 $1,963 p [psig] S/G/L : Stainless steel outlet body deep-drawn All body and H2 Art.-No trim parts 316L $1,105 $1,105 $1,514 $1,425 $1,473 $1,882 H4 Art.-No $1,390 $1,390 $1,798 $1,758 $1,758 $2,095 p [psig] S/G/L Starting from 15 psig the safety valve is certified acc. ASME Code Sec. VIII, Div. 1. 1) The design of Type 4623 is permitted with limitations acc. to ASME-Code Sec. VIII, Div. 1, UCD-2, UCD-3. Type 4623 shall not be used for lethal substances, irrespective of their state of aggregation. * ) LEOS/G = LESER Effective Orifice steam/gas; LEOL = LESER Effective Orifice liquids. 28 LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves

29 Compact Performance Type 462 Options Type 462 Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] Weight threaded [lb] O-ring-material NBR Buna-N N J30 J30 J30 See page 39 CR Neoprene K J21 J21 J21 for elastomer limitations EPDM Buna-EP D J22 J22 J22 FPM/FKM Viton L J23 J23 J23 FFKM Kalrez C J20 Test gag H4 J69 $134 $134 $134 $134 $134 $134 H2 J70 $134 $134 $134 $134 $134 $134 1) p 580 psig J78 $301 $301 $301 $301 $301 $301 Stainless steel bellows p > 580 psig J55J78 $468 $468 $468 $468 $468 $468 Elastomer bellows J79 $167 $167 $167 $167 $167 $167 Heating jacket for body H29 $836 $836 $836 $836 $836 $836 Spring High temperature alloy spring X01 $33 $33 $33 $33 $33 $ X04 $33 $33 $33 $33 $33 $33 Inconel 2) X08 $301 $301 $301 $301 $301 $301 Adaptor for lift indicator H4 J39 $167 $167 $167 $167 $167 $167 Lift indicator J93 $502 $502 $502 $502 $502 $502 Marking with stainless steel tag M29 $27 $27 $27 $27 $27 $27 Free of oil and grease J85 $167 $167 $167 $167 $167 $167 Gasket GYLON (filled PTFE) L68 $100 $100 $100 $100 $100 $100 Connections Available connections see page 32 and 33 1) Bellows is only balanced for d ) Delivery time: 5 weeks 29

30 Compact Performance Type 459 HDD Delivery time depends on type of connection Metal seat, stellited Type 459 Heavy duty design Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] API Orifice designation D D D LEO S/G*) [inch 2 ] LEO L*) [inch 2 ] API eff. Orifice area [inch 2 ] Weight threaded [lb] : Stainless steel heavy duty design All body and H2 Art.-No trim parts 316L $2,110 $2,110 $2,110 H4 Art.-No $2,396 $2,396 $2,396 p [psig] S/G/L Starting from 15 psig the safety valve is certified acc. ASME Code Sec. VIII, Div LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves

31 Compact Performance Type 459 HDD Options Type 459 Heavy duty design Actual Orifice diameter d 0 [mm] Actual Orifice area A 0 [inch 2 ] Weight threated [lb] Plastic seat 2) PTFE-FDA J44 $167 $167 Test gag PCTFE J48 $334 $334 Vespel-SP1 J49 $502 $502 H4 J69 $134 $134 $134 H2 J70 $134 $134 $134 1) p 580 psig J78 x $301 $301 Stainless steel bellows p > 580 psig J55J78 x $468 $468 Elastomer bellows J79 x $167 $167 Heating jacket for body H29 $836 $836 $836 Adaptor for lift indicator H4 J39 $167 $167 $167 Lift indicator J93 $502 $502 $502 Marking with stainless steel tag M29 $27 $27 $27 Free of oil and grease J85 $167 $167 $167 Gasket GYLON (filled PTFE) L68 $100 $100 $100 Spring Inconel Delivery time: 5 weeks X08 $301 $301 $301 Connections Available connections see page 32 and 33 1) Bellows is only balanced for d ) See page 39 for plastic material limitations LESER reserves the right to charge an extra amount (alloy charge) for stainless steel valves 31

32 Compact Performance Available connections Series 459 Series 459 Connections How to find the price for threaded connections Step 1: select orifice size column (ex. 13 mm) Step 2: select inlet column Step 3: select thread type section (ex. male thread NPT) Step 4: select size row (ex. 1") Step 5: repeat steps 1 to 4 for the outlet Male thread Female thread Threaded connections Valve size d 0 6 mm d 0 9 mm / d 0 13 mm d mm Inlet Outlet Inlet Outlet Inlet Outlet Option code Additional price Option code Additional price Option code Additional price Option code Additional price Option code Additional price Male thread ANSI/ASME B / 2 " V61 5) $0 V61 1) $0 Option code Additional price 3 / 4 " V62 5) $0 V62 $0 NPT 1" V63 5) $0 V73 $117 V63 $0 V73 $117 V63 $0 1 1 / 4 " V82 $117 V82 $117 V85 $84 V82 $ / 2 " V74 $117 V74 $117 V64 $84 V74 $117 2" V86 $84 Female thread ANSI/ASME B / 2 " V58 5) $84 V58 $84 3 / 4 " V59 5) $84 V59 $84 V59 $84 NPT 1" V60 5) $84 V71 $0 V60 $84 V71 $0 V60 $ / 4 " V80 $117 V80 $117 V87 $84 V80 $ / 2 " V72 $117 V72 $117 V75 $84 V72 $0 2" V88 4) $117 Male thread DIN ISO / 2 " V54 5) $0 V54 2) $0 3 / 4 " V55 5) $0 V55 $0 G / BSPP 1" V56 5) $0 V68 $117 V56 $0 V68 $117 V56 $0 1 1 / 4 " V79 $117 V79 $117 V83 $84 V79 $ / 2 " V69 $117 V69 $117 V57 $84 V69 $117 Female thread DIN ISO / 2 " V50 5) $84 V50 $84 3 / 4 " V51 5) $84 V51 $84 V51 $84 G / BSPP 1" V66 $0 V52 3) $84 V66 $0 V52 $ / 4 " V81 $117 V81 $117 V84 $84 V81 $ / 2 " V67 $117 V67 $117 V53 $84 V67 $0 1) d 0 13 mm: up to 1813 psig and 851 F. 2) Only for d 0 9 mm 3) d 0 9 mm: up to PN 420 4) Only for outlet body investment casted and ) Max. PN 700. For higher set pressures a special inlet body is necessary. (See LDeS ). Flanged and threaded connections can be combined. Threads according to other standards, e.g. ISO, DIN, BSP are available. Please specify in writing (diameter, pressure rating and standard). Please note: Only certain connection combinations are kept in Charlotte stock. Please see page 173 Availability from Charlotte stock. 32

33 Compact Performance Available connections Series 459 Series 459 Connections How to find the price for flanged connections Step 1: select orifice size column (ex. 13 mm) Step 2: select inlet column Step 3: select size row (ex. 1") Step 4: select pressure class row (ex. CL150) Step 5: repeat steps 1 to 4 for the outlet Flanged version Flanged connections Valve size Price Pressure rating ANSI/ASME B 16.5 Option code Option code Option code Option code NPS Additional price CL Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet 150 V01 1) V01 1) V01 $ V02 V02 V02 1 / 2 " 600 V02 V02 V V03 V03 V03 $ V03 V03 V V04 V04 V V05 V05 V05 V05 $ V06 V06 V06 V06 3 / 4 " 600 V06 V06 V06 V V07 V07 V07 V07 $ V07 V07 V07 V V08 V08 V08 V V09 V18 V09 V18 V09 V18 V09 $ V10 V19 V10 V19 V10 V19 V10 1" 600 V10 V19 V10 V19 V10 V19 V V11 V20 V11 V20 V11 V20 V11 $ V11 V11 V11 V V12 V12 V12 V V21 V21 V21 $ V22 V22 V / 2 " 600 V22 V22 V22 $ V23 V23 V23 1) These connections are available for the heavy duty design 459 only. d 0 6 mm d 0 9 mm d 0 13 mm d mm inch inch inch inch 2 Flanged and threaded connections can be combined. Threads according to other standards, e.g. ISO, DIN, BSP are available. Please specify in writing (diameter, pressure rating and standard). Please note: Only certain connection combinations are kept in Charlotte stock. Please see page 173 Availability from Charlotte stock. 33

34 Compact Performance Spare parts Series 437 Spare parts Valve size Orifice [inch 2 ] Type 4373 Hardened stainless steel Type 4374 Stainless steel 316L Disc Type 437 metal to metal seat (Item 7) all Disc Type 438 soft seal with O-ring, disc material: 316L (Item 7) Valve size all (standard version) all (long version) Series 437 Orifice [inch 2 ] O-ring size ARP-no. 7 / 16 x 3 / 32 ARP / 16 x 3 / 32 ARP 111 O-ring Type 438 soft seal (Item 7.3) all / 16 x 3 / 32 ARP 111 CR Neoprene K Disc Type 439 with vulcanized soft seal (Item 7) Valve size Orifice [inch 2 ] all $47 $47 EPDM Buna-EP D FPM (FKM) Viton L NBR Buna-N N FFKM Kalrez C $134 $134 $134 $134 $ $134 $134 $134 $134 $ $20 $20 $27 $20 $234 CR Neoprene K EPDM Buna-EP D FPM (FKM) Viton L NBR Buna-N N FFKM ISOLAST C $167 $167 $167 $167 $401 Rollpin Disc (Item 57) all Type 437 all Type 439 Ball Disc (Item 61) all Stainless steel Stainless steel Stainless steel $ $ $13 34

35 Compact Performance Spare parts Series 437 Spare parts Size Orifice [inch 2 ] Male NPT Female NPT Inlet Bodies Type 437 Threaded connections Material 316L (Item 1) 1 / 2 " V V58 $334 $334 3 / 4 " V V59 $334 $334 1" V V60 $334 $334 Inlet Bodies Types 438 / 439 Threaded connections Material 316L (Item 1) Size Orifice [inch 2 ] Male NPT Female NPT 1 / 2 " Series 437 V61 3 / 4 " V62 1" V V58 $334 $ V59 $334 $ V60 $334 $334 Size Orifice [inch 2 ] CL150 CL300 CL2500 Inlet Bodies Type 437 Flanged connections Material 316L (Item 1) 1 / 2 " V ) V02 V04 $334 $334 3 / 4 " V V06 V08 $334 $334 1" V V10 V12 $334 $334 Inlet Bodies Type 438 / 439 Flanged connections Material 316L (Item 1) Size Orifice [inch 2 ] CL150 CL300 CL / 2 " V01 3 / 4 " V05 1" V ) V02 V04 $334 $ V06 V08 $334 $ V10 V12 $334 $334 1) Subassembly consisting of: inlet body, sealing part, slip on flange. Please note: Inlet bodies above are valid for the standard versions only. Please contact LESER for part numbers and pricing of the long versions. 35

36 Compact Performance Spare parts kits Type 459, 462 Series 459, 462 Spare parts kits The spare parts kit provides all spare parts which are recommended by LESER to be replaced during rework of a safety valve. Components Type 459 Components Type 462, 462 HDD Item Designation Quantity Item Designation Quantity 7 Disc 1 14 Split ring Spacer (Lifting device H4) 3 57 Pin 1 59 Securing ring 1 60 Gasket 2 61 Ball 1 63 Gasket O-ring disc body Lifting aid O-ring (FKM / EPDM) Pin 1 14 Split ring Spacer (Lifting device H4) 3 57 Pin 1 59 Securing ring 1 60 Gasket 2 61 Ball 1 63 Gasket 1 Spare parts kits d Type $150 $150 $150 Type Type 462 HDD $201 $201 $201 36

37 Compact Performance Spare parts Series 459 Orifice [inch 2 ] Type 4592 / 4593 Hardened stainless steel Type L Disc Type 459 metal to metal seat (Item 7) $ $ $134 $ $134 $ $134 $134 Disc Type 459 plastic seat (Item 7) Orifice [inch 2 ] PTFE PCTFE Disc Type 462 soft seal, disc material: 316L (Item 7) Orifice [inch 2 ] O-ring size ARP-no. 1 / 2 x 3 / 32 ARP / 16 x 3 / 32 ARP / 16 x 3 / 32 ARP 117 O-ring Type 462 soft seal (Item 7.4) / 2 x 3 / 32 ARP / 16 x 3 / 32 ARP / 16 x 3 / 32 ARP 117 CR Neoprene K Bellows and Bellows Conversion Kits Material 316L (Item 15) $301 $ $301 $ $301 $468 EPDM Buna-EP D FPM (FKM) Viton L NBR Buna-N N FFKM Kalrez C $167 $167 $167 $167 $ $167 $167 $167 $167 $ $167 $167 $167 $167 $ $20 $20 $27 $20 $ $20 $20 $27 $20 $ $20 $20 $27 $20 $368 Valve size Set pressure Bellows Conversion Kit all all p 580 psig (40 bar) p > 580 psig (40 bar) Gaskets Body Bonnet (Item 60) $301 $ $468 $468 Valve size Material Gasket all all Rollpin Disc (Item 57) all Ball Disc (Item 61) all Graphite SS Gylon (filled PTFE) Stainless steel Stainless steel $ $ $ $13 Series 459 Spare parts 37

38 Compact Performance Spare parts Series 459 Spare parts Series 459 Size Ori