a safety valve factory

... -start valve with Series MX2 air treatment units without the need for additional connection interfaces. The soft-start valve is positioned upstream of the safety valves, ...

Two hands safety valve, which allows a safety use of two hands pneumatic controls (for example two push-button 3/2 N.C. to a certain distance) excluding false signals in case of push-button ...

The SI2 safety valve prevents the allowed operating pressure from being exceeded by more than 10%. If, after opening, the adjusted response pressure falls ...

... stainless steel full-lift clean service safety valve designed to AD Merkblatt A2 and TRD 421 standards and suitable for pure steam, vapour and inert gases.

Insert style flow control valves are comprised of a precision orifice in parallel with a check valve, combined into a single component. Each is designed for easy installation into metal housings using ...

Press-in style flow control valves are comprised of a precision flow orifice in parallel with a check valve, combined into a single component. Each part is designed for easy installation into plastic ...

If you have been searching for a safety release valve that you can use to reduce short-term pressure surges successfully and diminish the effects of gas leaks, this is the product for you. With a pe of ...

... have been type tested as well. These pressure regulators have safety valves which will slam shut in the event of emergencies, such as the gas reaching too high a pressure level. The valve ...

This product has hydraulically actuated class A gas safety valves to EN 161 used for automatic shut-off. It shuts off when unstimulated for gas and air, or even biologically produced methane. It has AISi ...

The S 104 Safety Shut Off valve is mainly used to avoid any damage to components as well as to avoid too high or too low pressure in the gas train. This could cause high financial losses and/or injured ...

The S50 Safety Shut Off valve is mainly used to avoid any damage to components as well as to avoid too high or too low pressure in the gas train. This could cause high financial losses and/or injured ...

The S100 Safety Shut Off valve is mainly used to avoid any damage to components as well as to avoid too high or too low pressure in the gas train. This could cause high financial losses and/or injured ...

... Pressure Safety Valve + Rupture Disk is protected and may be utilized autonomously as essential security gadgets or in conjunction. There are 3 possible combinations. The first combinations ...

Excavator pipe-rupture valves prevent uncontrolled cylinder movement in the event that a pipe or hose bursts. The ESV valve fulfills all of the requirements of the ISO 8643 and EN 474-5 standards for ...

Material: Body- CF8M; Valve Seat- CF8M Métal Seat, PTFE Soft Seat available Orifice Size: fc"(15mm), 3/4M(20mm), l"(25mm), l1/4,’(32mm)I ltë”(40mm), ...

The Safety valves from ATOS are designed to guarantee protection for application on various devices, especially those that monitor spool position. They are also recommended for hydraulic ...

Distributor of hydraulic press safety, quick opening safety, rotary and safety valves. Amerigear®, Boston Gear®, Carlisle®, DeMag®, Desch® and IMI Norgren®, pneumatic, double action, quick release and flow control valves also provided. Repair and preventative maintenance services are offered. Value added services such as custom barcoding, CAD capabilities, OEM assembly, plant surveys and third party logistics are also available. Serves the metal processing, metal service center, paper mill and paper converting, canning, grinding, commercial laundry, marine, oil and gas and material handling industries. Vendor managed inventory (VMI) programs available. Kanban delivery.

Of all the challenges you face keeping your customers’ plants operating at full capacity, safety and relief valves shouldn’t be one of them. NASVI’s job is to give you the confidence that your valve supply chain is rock solid regardless the pressure it’s under.

Expect expert service, the most extensive inventory in the nation and emergency service whenever needed. That’s how we’ve got our customers’ backs since 1975.

With more than 1,050 employees and 130,000 safety valves produced per year, LESER is the largest manufacturer of safety valves in Europe and one of the leading companies in its industry worldwide.

LESER offers spring loaded and pilot operated safety valves for all industrial applications according to the Pressure Equipment Directive and ASME XIII. Major companies in the chemical, oil and gas, petrochemical, energy, technical gases, LNG/LPG, pharmaceutical, food and beverage, shipbuilding and heating and air conditioning industries use LESER safety valves.

LESER safety valves are developed for the international market in Hamburg and manufactured in the modern plant in Hohenwestedt/Germany. In addition, LESER produces safety valves to the same standards in India and China for the local markets. Nine subsidiaries and offices in Europe, America, the Middle East and Asia as well as authorized contacts in over 80 countries guarantee competent customer advice and fast, reliable deliveries.

Industry leading pressure and safety relief valve designs with over 140 years of technical and application expertise providing custom engineered solutions for O&G, Refining, Chemical, Petrochemical, Process and Power applications. Our designs meet global and local codes and standards (API 526; ASME Section I, IV & VIII; EN ISO 4126; PED & more). Gain insight into the performance of your pressure relief valves with wireless monitoring.

Emergency situations are not the only times relief valves are active; once installed they continuously regulate the flow of substance. They can also be pre-set to open when the pressure or temperature gets to a certain point that may be dangerous. Generally valves are placed on or near the pump head of the hose, pipe or tube. A wide variety of relief valve designs exist, although most resemble ball-check valves, swing check valves or diaphragm valves.

This last is particularly useful when controlling a flow of fluids that contains suspended solids. Most relief valves are spring operated, as are the majority of check valves. One specialized type of relief valve is known as a vacuum relief valve. As opposed to a normal relief valve, which relieves high pressure, a vacuum relief valve is used to relieve dangerously low pressures, or vacuums, by inserting air or an inert gas.

Like every other type of check valve, relief valves may be constructed from a variety of materials, including PVC, brass, ductile iron, copper, polyethylene, polypropylene, aluminum, steel, stainless steel and rubber. Which raw substance is used to produce each relief valve depends on the environment said relief valve will be in. The wrong product could result in erosion or contamination of the process stream. However, as long as research is done, finding the appropriate type of relief valve is possible. Every plumbing or fluid transfer application in the industrial, commercial and domestic arenas employ or will employ check valves. In fact, check valves of all kinds are an essential part of every day life. Because they need not be supervised to function and prevent product malfunction, check valves are not only desirable but often required by law to ensure the safety of water, gas and pressure applications.

1 Piece Ball Valve1 Piece Cast Iron Screwed Ball Valve1 Piece Flanged Ball Valve1 Piece Screwed Ball Valve2 Piece Ball valve2 Piece Cast Steel Ball Valve2 Piece Flanged Ball Valve2 Piece Forged Steel Ball Valve2 Piece Screwed Ball Valve3 Piece Ball Valve3 Piece Cast Iron Ball Valve3 Piece Cast Steel Ball Valve3 Piece Flanged Ball Valve3 Piece Forged Steel Ball Valve3 Piece Reduced Port Ball Valve3 Piece Screwed Ball Valve3 Way Converging and Diverging Control Valve3 Way Plug Valve3 Way Pneumatic Diaphragm Control ValveAir ValveAlloy 20 2 Piece Ball ValveAlloy 20 2 Piece Screwed Ball ValveAlloy 20 3 Piece Ball ValveAlloy 20 3 Piece Screwed Ball ValveAlloy 20 Ball ValveAlloy 20 Dual Plate Lug Type Check ValveAlloy 20 Floating Ball ValveAlloy 20 Swing Check ValveAlloy 20 Trunnion Mounted Ball ValveAlloy 20 ValvesAlloy 20 Wafer Butterfly ValveAlloy Butterfly ValveAlloy Check valveAlloy Dual Plate Wafer Check ValveAlloy Flanged Gate ValveAlloy Flanged Globe ValveAlloy Gate ValveAlloy Gate ValvesAlloy Globe ValvesAlloy Lug Butterfly ValveAlloy Plug ValveAlloy Pressure Seal Globe ValveAluminium Bronze 3 Piece Ball ValveAluminium Bronze Ball ValveAluminium Bronze Butterfly ValveAluminium Bronze Check ValveAluminium Bronze Floating Ball ValveAluminium Bronze Gate ValveAluminium Bronze Lug Butterfly ValveAluminium Bronze Swing Check ValveAluminium Bronze Triple offset Lug Butterfly ValveAluminium Bronze Trunnion Ball ValveAluminium Bronze valvesAluminium Bronze Wafer Butterfly ValveAluminium Dual Plate Wafer Check ValveAluminum Bronze Globe ValveAngle Globe ValveANSI Gate ValveANSI Globe ValveAPI Aluminium Bronze Triple offset Lug Butterfly ValveAPI Gate ValveAPI Globe ValveAustenitic Steel Big Size Ball ValveAustenitic Steel ValvesAWWA Butterfly ValveAWWA Gate ValveAWWA Non Rising Stem Gate ValveAWWA OS&Y Gate ValveAWWA StrainerAWWA Wafer Butterfly ValveAWWA Y StrainerBalancing ValveBall Float Steam TrapBall ValveBellow Seal Globe ValveBi Directional Knife Gate ValveBimetallic Steam TrapBlock and Bleed valveBrass Ball ValveBrass Ball ValvesBrass Check ValvesBrass Flanged Ball ValveBrass Flanged Gate ValveBrass Flanged Globe ValveBrass Gate ValveBrass Gate ValvesBrass Globe ValveBrass Globe ValvesBrass Safety ValveBrass Swing Check ValveBrass ValveBrass Vertical Check ValveBrass Y StrainerBronze Butterfly ValveBronze Check ValveBronze Flanged Gate ValveBronze Flanged Globe ValveBronze Floating Ball ValveBronze Gate ValveBronze Gate ValvesBronze Globe ValveBronze Globe ValvesBronze Swing Check ValveBronze ValveBronze Wafer Butterfly ValveBronze Wafer Check ValveBS Cast Iron Gate valveBS Cast Steel Gate ValveBS Ductile Iron Gate ValveBS Globe ValveBS Non Rising Stem Gate ValveBS NRS Carbon Steel Gate ValveBS NRS Cast Iron Gate ValveBS NRS Ductile Iron Gate ValveBS Rising Stem Gate ValveBS Soft Seat Gate ValveBS Stainless Steel Gate ValveButterfly ValveCarbon Steel Bellow Seal Globe ValveCast Floating Ball ValveCast Iron And Cast Steel Ball ValveCast Iron Diaphragm ValveCasting Trunnion Ball Valvecheck valveConnection Lift Plug ValveControl ValveCryogenic Ball ValveCryogenic Check ValveCryogenic Emergency Cut off ValveCryogenic Gate ValveCryogenic Globe ValveCryogenic Long Stem Globe ValveCryogenic Pneumatic Actuated Globe ValveCryogenic Short Stem Globe ValveCryogenic Steam Jacket Globe ValveCryogenic ValveDiaphragm ValveDIN Globe ValveDIN Non Rising Stem Ductile Iron Gate ValveDIN Non Rising Stem Gate ValveDIN NRS Cast Iron Gate ValveDIN Rising Stem Cast Iron Gate ValveDIN Rising Stem Ductile Iron Gate ValveDIN Rising Stem Gate ValveDIN Soft Seat Gate ValveDirect Acting Pressure Reducing ValveDouble Block and Bleed Ball ValveDouble Disc Gate ValveDouble Eccentric Butterfly ValveDouble Offset Butterfly ValveDouble Orifice Air Release ValveDouble Orifice Kinetic Air ValveDual Plate Lug Check ValveDual Plate Wafer Check ValveDuctile Iron Diaphragm ValveDuplex 1B 3 PC Ball ValveDuplex 3 Piece Ball ValveDuplex Basket StrainerDuplex Butterfly ValveDuplex Check ValveDuplex Dual Plate Lug Type Check ValveDuplex Dual Plate Wafer Check ValveDuplex Floating Ball ValveDuplex Gate ValveDuplex Globe ValveDuplex High Pressure Ball ValveDuplex Lug Type Butterfly ValveDuplex Steel Ball ValveDuplex steel ValveDuplex Swing Check ValveDuplex Top Entry Ball ValveDuplex Trunnion Mounted Ball ValveDuplex Wafer Butterfly ValveEccentric Plug ValveElectric 3 Way Control ValveElectric Actuated 2 Piece Ball ValveElectric Actuated 2 Piece Flanged Ball ValveElectric Actuated 2 Piece Screwed Ball ValveElectric Actuated Ball ValveElectric Actuated Butterfly ValveElectric Actuated Flanged Ball ValveElectric Actuated Floating Forged Ball ValveElectric Actuated Gate ValveElectric Actuated Globe Control ValveElectric Actuated Globe ValveElectric Actuated High Pressure Ball ValvesElectric Actuated High Pressure Direct Mounting Ball ValvesElectric Actuated Lug Butterfly ValveElectric Actuated Metal-Seated Trunnion-Mounted Forged Ball ValveElectric Actuated Three Piece Ball ValveElectric Actuated Three Way Ball ValveElectric Actuated Trunnion-Mounted Casting Ball ValveElectric Actuated ValvesElectric Actuated Wafer Butterfly ValveElectric Cage Type Control ValveElectric Control ValveElectric Double Seat Control ValveElectric O-type Shut-off Control ValveElectric Single Seat Control ValveF22/Alloy Steel Pressure Seal Globe ValveF317L Gate ValveF317L Globe ValveF317L ValvesF321 Gate ValveF321 Globe ValveF321 ValvesF347 3 Piece Ball ValveF347 Ball ValveF347 Butterfly ValveF347 Check ValveF347 Dual Plate Lug Type Check ValveF347 Dual Plate Wafer Check ValveF347 Floating Ball ValveF347 Gate ValveF347 Globe ValveF347 Lug Type Butterfly ValveF347 Swing Check ValveF347 Trunnion Mounted Ball ValveF347 ValvesF347 Wafer Butterfly ValveF44 Gate ValveF44 Globe valvesF44 ValvesF51 Super Duplex Ball ValveF53/F55 Super Duplex Globe ValveFeed Water Control ValveFlanged Butterfly ValveFlanged Knife gate ValveFloat Control ValveFloating Ball ValveFluorine Lined Single Seat Control ValveFoot ValveForged Cryogenic Trunnion Ball ValveForged Floating Ball ValveForged Steel Ball ValveForged Steel Gate ValveForged Steel Globe ValveForged Steel Swing Check ValveForged Trunnion Ball ValveFull Lift Pressure Safety ValveFull Lift Safety ValveFully Welded Ball ValveGate ValveGlobe ValveHastelloy Ball ValveHastelloy C276 2 Piece Flanged Ball ValveHastelloy C276 2 Piece Screwed Ball ValveHastelloy C276 3 Piece Screwed Ball ValveHastelloy C276/B3 3 Piece Ball ValveHastelloy C276/B3 Butterfly ValveHastelloy C276/B3 Dual Plate Lug Type Check ValveHastelloy C276/B3 Dual Plate Wafer Check ValveHastelloy C276/B3 Floating Ball ValveHastelloy C276/B3 Gate ValvesHastelloy C276/B3 Globe ValveHastelloy C276/B3 Lug Butterfly ValveHastelloy C276/B3 Swing Check valveHastelloy C276/B3 Trunnion Mounted Ball ValveHastelloy C276/B3 ValvesHastelloy C276/B3 Wafer Butterfly ValveHastelloy Check ValveHeavy Duty Investment Casting Ball ValveHigh Performance Lug Butterfly ValveHigh Performance Wafer Butterfly ValveIncoloy 2 Piece Ball ValveIncoloy 3 Piece Ball ValveIncoloy Gate ValveIncoloy Globe ValveIncoloy ValvesInconel 2 Piece Ball ValveInconel 3 Piece Ball ValveInconel Ball ValveInconel Butterfly ValveInconel Check ValveInconel Dual Plate Lug Type Check ValveInconel Dual Plate Wafer Check ValveInconel Floating Ball ValveInconel Gate ValveInconel Globe ValveInconel Lug Butterfly ValveInconel safety relief valveInconel Swing Check ValveInconel Trunnion Mounted Ball ValveInconel ValveInconel Wafer Butterfly ValveInverted Bucket Steam TrapInvestment Casting Ball ValveJacketed Ball ValveJacketed Plug ValveKnife Gate ValveLift Check valveLow Lift Pressure Safety ValveLow Lift Safety ValveLubricated Plug valveLug Butterfly ValveMonel 2 Piece Ball ValveMonel 3 Piece Ball ValveMonel 400 2 Piece Flanged Ball ValveMonel 400 ValvesMonel Ball ValveMonel Butterfly ValveMonel Check ValveMonel Dual Plate Lug Check ValveMonel 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ValveSimplex Basket StrainersSingle Orifice Air ValveSingle Plate Wafer Check ValveSlab Gate ValveSlurry Knife Gate ValveSoft Seal Gate ValveSpeciality ValveSS304 Bellow Seal Globe ValveSS316 Bellow Seal Globe ValveSS316L Gate ValveSS316L Lug Butterfly ValveSS316L Wafer Butterfly ValveSteam Pressure Reducing ValveSteam Safety ValveSteam TrapStrainersSuction DiffuserSuper Duplex 2 Piece Ball ValveSuper Duplex 3 Piece Ball ValveSuper Duplex 5A Flanged Gate ValveSuper Duplex 5A Globe ValveSuper Duplex 5A Swing Check ValveSuper Duplex Ball ValveSuper Duplex Butterfly ValveSuper Duplex Check ValveSuper Duplex Dual Plate Lug Type Check ValveSuper Duplex Dual Plate Wafer Check ValveSuper Duplex Floating Ball ValveSuper Duplex Gate ValveSuper Duplex Gate ValvesSuper Duplex Globe ValveSuper Duplex High Pressure Ball ValveSuper Duplex Knife Gate ValveSuper Duplex Lug Butterfly ValveSuper Duplex Pressure Reducing ValveSuper Duplex Top Entry Ball ValveSuper Duplex Trunnion Mounted Ball ValveSuper Duplex ValvesSuper Duplex Wafer Butterfly ValveSurge Anticipator ValveSwing Check ValveThermal Safety ValveThermodynamic Steam TrapThermostatic Steam TrapThree Piece Flanged Ball ValveThree Way Ball ValveThrough Conduit Knife Gate ValveTilting Disc Check ValveTitanium 3 Piece Ball ValveTitanium Ball ValveTitanium Butterfly ValveTitanium Check ValveTitanium Dual Plate Lug Type Check ValveTitanium Dual Plate Wafer Check ValveTitanium Floating Ball ValveTitanium Forged Trunnion Mounted Ball ValveTitanium Gate ValveTitanium Globe ValveTitanium Gr.2 2pc Flanged Ball ValveTitanium Gr.2 3pc Ball ValveTitanium Gr.5 2pc Flanged Ball ValveTitanium Gr.5 3pc Ball ValveTitanium Lug Butterfly ValveTitanium Swing Check ValveTitanium Trunnion Mounted Ball ValveTitanium valvesTitanium Wafer Butterfly ValveTop Entry Ball ValveTriple Duty ValveTriple Eccentric Butterfly ValveTriple Offset Butterfly ValveTrunnion Ball ValveTwin Seal Plug ValveUL/FM Approved ValvesUnidirectional Knife Gate ValveWafer Butterfly ValveWater Pressure Reducing ValveY StrainerY Type Globe ValveZirconium Floating Ball ValveZirconium Gate ValveZirconium Globe ValveZirconium Valves

Safety valves are an arrangement or mechanism to release a substance from the concerned system in the event of pressure or temperature exceeding a particular preset limit. The systems in the context may be boilers, steam boilers, pressure vessels or other related systems. As per the mechanical arrangement, this one get fitted into the bigger picture (part of the bigger arrangement) called as PSV or PRV that is pressure safety or pressure relief valves.

This type of safety mechanism was largely implemented to counter the problem of accidental explosion of steam boilers. Initiated in the working of a steam digester, there were many methodologies that were then accommodated during the phase of the industrial revolution. And since then this safety mechanism has come a long way and now accommodates various other aspects.

These aspects like applications, performance criteria, ranges, nation based standards (countries like United States, European Union, Japan, South Korea provide different standards) etc. manage to differentiate or categorize this safety valve segment. So, there can be many different ways in which these safety valves get differentiated but a common range of bifurcation is as follows:

The American Society of Mechanical Engineers (ASME) I tap is a type of safety valve which opens with respect to 3% and 4% of pressure (ASME code for pressure vessel applications) while ASME VIII valve opens at 10% over pressure and closes at 7%. Lift safety valves get further classified as low-lift and full lift. The flow control valves regulate the pressure or flow of a fluid whereas a balanced valve is used to minimize the effects induced by pressure on operating characteristics of the valve in context.

A power operated valve is a type of pressure relief valve is which an external power source is also used to relieve the pressure. A proportional-relief valve gets opened in a relatively stable manner as compared to increasing pressure. There are 2 types of direct-loaded safety valves, first being diaphragms and second: bellows. diaphragms are valves which spring for the protection of effects of the liquid membrane while bellows provide an arrangement where the parts of rotating elements and sources get protected from the effects of the liquid via bellows.

In a master valve, the operation and even the initiation is controlled by the fluid which gets discharged via a pilot valve. Now coming to the bigger picture, the pressure safety valves based segment gets classified as follows:

So all in all, pressure safety valves, pressure relief valves, relief valves, pilot-operated relief valves, low pressure safety valves, vacuum pressure safety valves etc. complete the range of safety measures in boilers and related devices.

Safety valves have different discharge capacities. These capacities are based on the geometrical area of the body seat upstream and downstream of the valve. Flow diameter is the minimum geometrical diameter upstream and downstream of the body seat.

The nominal size designation refers to the inlet orifice diameter. A safety Valve"s theoretical flowing capacity is the mass flow through an orifice with the same cross-sectional area as the valve"s flow area. This capacity does not account for the flow losses caused by the valve. The actual capacity is measured, and the certified flow capacity is the actual flow capacity reduced by 10%.

A safety valve"s discharge capacity is dependent on the set pressure and position in a system. Once the set pressure is calculated, the discharge capacity must be determined. Safety valves may be oversized or undersized depending on the flow throughput and/or the valve"s set pressure.

The actual discharge capacity of a safety valve depends on the type of discharge system used. In liquid service, safety valves are generally automatic and direct-pressure actuated.

A safety valve is used to protect against overpressure in a fluid system. Its design allows for a lift in the disc, indicating that the valve is about to open. When the inlet pressure rises above the set pressure, the guide moves to the open position, and media flows to the outlet via the pilot tube. Once the inlet pressure falls below the set pressure, the main valve closes and prevents overpressure. There are five criteria for selecting a safety valve.

The first and most basic requirement of a safety valve is its ability to safely control the flow of gas. Hence, the valve must be able to control the flow of gas and water. The valve should be able to withstand the high pressures of the system. This is because the gas or steam coming from the boiler will be condensed and fill the pipe. The steam will then wet the safety valve seat.

The other major requirement for safety valves is their ability to prevent pressure buildup. They prevent overpressure conditions by allowing liquid or gas to escape. Safety valves are used in many different applications. Gas and steam lines, for example, can prevent catastrophic damage to the plant. They are also known as safety relief valves. During an emergency, a safety valve will open automatically and discharge gas or liquid pressure from a pressurized system, preventing it from reaching dangerous levels.

The discharge capacity of a safety valve is based on its orifice area, set pressure, and position in the system. A safety valve"s discharge capacity should be calculated based on the maximum flow through its inlet and outlet orifice areas. Its nominal size is often determined by manufacturer specifications.

Its discharge capacity is the maximum flow through the valve that it can relieve, based on the maximum flow through each individual flow path or combined flow path. The discharge pressure of the safety valve should be more than the operating pressure of the system. As a thumb rule, the relief pressure should be 10% above the working pressure of the system.

It is important to choose the discharge capacity of a safety valve based on the inlet and output piping sizes. Ideally, the discharge capacity should be equal to or greater than the maximum output of the system. A safety valve should also be installed vertically and into a clean fitting. While installing a valve, it is important to use a proper wrench for installation. The discharge piping should slope downward to drain any condensate.

The discharge capacity of a safety valve is measured in a few different ways. The first is the test pressure. This gauge pressure is the pressure at which the valve opens, while the second is the pressure at which it re-closes. Both are measured in a test stand under controlled conditions. A safety valve with a test pressure of 10,000 psi is rated at 10,000 psi (as per ASME PTC25.3).

The discharge capacity of a safety valve should be large enough to dissipate a large volume of pressure. A small valve may be adequate for a smaller system, but a larger one could cause an explosion. In a large-scale manufacturing plant, safety valves are critical for the safety of personnel and equipment. Choosing the right valve size for a particular system is essential to its efficiency.

Before you use a safety valve, you need to know its discharge capacity. Here are some steps you need to follow to calculate the discharge capacity of a safety valve.

To check the discharge capacity of a safety valve, the safety valve should be installed in the appropriate location. Its inlet and outlet pipework should be thoroughly cleaned before installation. It is important to avoid excessive use of PTFE tape and to ensure that the installation is solid. The safety valve should not be exposed to vibration or undue stress. When mounting a safety valve, it should be installed vertically and with the test lever at the top. The inlet connection of the safety valve should be attached to the vessel or pipeline with the shortest length of pipe. It must not be interrupted by any isolation valve. The pressure loss at the inlet of a safety valve should not exceed 3% of the set pressure.

The sizing of a safety valve depends on the amount of fluid it is required to control. The rated discharge capacity is a function of the safety valve"s orifice area, set pressure, and position in the system. Using the manufacturer"s specifications for orifice area and nominal size of the valve, the capacity of a safety valve can be determined. The discharge flow can be calculated using the maximum flow through the valve or the combined flows of several paths. When sizing a safety valve, it"s necessary to consider both its theoretical and actual discharge capacity. Ideally, the discharge capacity will be equal to the minimum area.

To determine the correct set pressure for a safety valve, consider the following criteria. It must be less than the MAAP of the system. Set pressure of 5% greater than the MAAP will result in an overpressure of 10%. If the set pressure is higher than the MAAP, the safety valve will not close. The MAAP must never exceed the set pressure. A set pressure that is too high will result in a poor shutoff after discharge. Depending on the type of valve, a backpressure variation of 10% to 15% of the set pressure cannot be handled by a conventional valve.

Safety valves are used in a variety of applications, including air/gas, vapor, steam and liquid service.  Flotech has been approved by the National Board of Boiler and Pressure Vessel Inspectors to perform safety and relief valve testing, repair and certification.

Our valve experts will focus on getting your valves tested, repaired and quickly set to the exact specifications.  We evaluate the repair condition of every valve and will recommend the right solution to manage your maintenance program.

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Trusted since 1967 in the industry, our sole focus is safety and safety relief valve products and services. We commit ourselves to our customers and to delivering the best products. Our certified technicians are continually trained in American Society of Mechanical Engineer safety, testing, and support procedures to ensure a superior product that goes beyond manufacturer standards. We also offer on-demand, hotshot, or same day, delivery for fast service. When you have a need, we meet it and make it happen with your needed solution.

With our sole commitment to safety and safety relief valves, Gulf Valve Service Company carries an expansive inventory of products and parts. Selections of hard to find parts in various metals from all manufactures are available from us when you have exhausted all other options.

Taylor Valve Technology® is a manufacturer leader in high-quality industrial valves. We deliver safety relief, high-pressure relief, and back pressure relief valves. Our wide array of choke and control valves and pilot-operated valve products are second to none. Products are designed for demanding industrial needs, meeting quality API and ASME Code requirements. High-demand oil & gas industry, chemical plants, power generators, and the processing industry depend on our valves for consistency and durability. Get effective flow control of liquid, steam, and gas. Valves ship from the Taylor Valve Technology, Inc. United States facility. Delivering worldwide, you can depend on quick turnaround times.