back pressure sustaining valve

They use a fluid pressure on the top of the diaphragm instead of a spring and also use direct diaphragm sealing instead of a traditional valve seat. They are a vital component in chemical injection systems for safe and economical operation. pressure sustaining valve to the top of piping (H2 (m)) is 16 m, and the shut-off pressure drop is consequently 0.02 MPa. Sizes 1/2 to 2" thread or flange Dn15 to DN1000. The diaphragm seals the inlet connection stopping liquid flow to the outlet of the valve. The valve will maintain a steady, predetermined pressure at the upstream of a pipeline. The main valve consists of only two parts, a stainless steel body and an elastomeric liner or control element. 1 "- 12" Consult factory for configuration. The Model C301/CF301 Back Pressure (Sustaining) Valve throttles to maintain a minimum upstream (inlet) pressure regardless of changes in demand downstream. PSVs are useful in situations where unregulated flow would result in inadequate pressures (too low) in the upstream portion of a system. The valve can be used for pressure relief, pressure sustaining, back pressure impact and other working conditions. Pressure relief, sustaining, or backpressure control valves are automatic control valves designed to maintain desired field-adjustable pressure settings with close tolerances. WATER WORKS RELIEF/SUSTAINING/SURGE VALVES Direct-acting. of back pressure (outlet pressure), allowing a large flow rate. The backpressure regulator is called upon to provide pressure in order to draw fluid off the system. An adjustable spring presses onto a PTFE diaphragm. The throttled position of the main valve diaphragm assembly is controlled by a pilot valve which senses the upstream pressure. The valve can be in one of . It is applied for pressure relief, sustaining, and back impact problems.During operation, through pilot to sense the valve inlet pressure and control the open/close of the valve. View product specs. Show Products. Diaphragm sensing spring loaded back pressure sustaining valve. TEFLON seals are used for steam up to 180 degrees C. Reducing range: 1-5bar, 4-10bar. Under continuous flow conditions: @ 100 PSI with ambient temperature water with the valve set@ 50PSIG. Slow-closing. The sustained upstream or back pressure is displayed on the pressure gauge mounted on the top of the pressure sustaining valve. way, a back pressure regulator is also referred to as a pressure sustaining valve or pressure bypass valve. Pressure Relief, Sustaining or Backpressure Control Valve. Also known as pressure sustaining valves, these valves maintain a constant upstream pressure in the system. " valve 34 USGPM " valve 36 USGPM 1" valve 38 USGPM Note: Capacities will increase with pressure. Situations to use. Also known as an overflow, safety or backpressure valve, the Type 586 Pressure Retaining Valve works to keep the pressure at the valve inlet constant at all times, thereby ensuring problem-free operation. Minimum set pressure P MPa + 0.02 = 0.17 0.098 x 16 10 The backpressure regulator is a normally-closed valve installed at the END of a piping system or after pressure sensitive equipment to provide an obstruction to flow and thereby regulate upstream (back) pressure. The P09 is suitable for general liquids and gases. Calculation & Selection, Quality Control, Product Inspection, After-Sales Service, We Pay More Attention For Each of Production Loop, Ensure Our Customers Have No Worries. The valve gate is normally closed. Sustain differential pressure. The throttled position of the main valve diaphragm assembly is controlled by a pilot valve which senses the upstream pressure. Home; About Us. Function to maintain a stable pressure in pipeline system. You can count on Singer valves to do exactly what they are designed to do. Configurations: Model C - Full Port Globe Style (Flanged or Threaded) Model CF - Reduced Port Globe Style (Flanged) Model CA - Angle Body Style (Flanged or Threaded) Warranty: 3 Years. Subject: Flow capacity through ECO VALVE, back pressure/pressure sustaining and pressure relief valves. The downstream hydraulic grade and pressure decrease. Pressure sustaining known as back pressure, pressure maintaining, pressure retaining or low pressure cut off valves. The purpose of a pilot valve is to control the opening and closing of the main valve by trapping or releasing water from the main valve's "operating chamber" ("K" - the chamber above the main valve piston). . 160-2 Pressure Relief Valve. What a relief. The Cla-Val Model 750-01 Pressure Relief, Sustaining and Back Pressure Valve is a hydraulically operated pilot actuated automatic control valve. Australian manufactured pressure relief valves for installations of water, air, gas, oil, steam and chemicals. The Model 50RWR Relief or Back Pressure Sustaining Pilot Valve uses this logic in order to control pressure upstream of the main valve. When . Industrial valves Manufacturer R-2 & R-3, Arbuda Estate, Phase-2 Naroda, Ahmedabd-382330 +91 98250 47442. A Back Pressure / Pressure Sustaining Valve is an automatic, pilot controlled valve that activated by the pressure of the pipeline. Pressure Relief, Pressure Sustaining & Back Pressure Valve INTRODUCTION The Cla-Val 50-01/650-01 is an automatic control valve designed to maintain constant upstream pressure to close limits. Visit our Customer Support page to find the answers you're looking for. As the upstream pressure rises the valve starts to open allowing flow downstream and if it falls below the setpoint the valve will shut. Designed to maintain a set back pressure regardless of downstream pressure or flow demands. Pressure Sustaining: Prevents inlet pressure from dropping below a predetermined minimum Operates over a wide flow range Inlet pressure is adjustable with a single screw Quick opening; adjustable closing speed Can be maintained without removal from the line Factory tested and can be pre-set to requirements Testimonials They are also often used to model pressure relief valves. back pressure sustaining valve from 181 Products. (if pressure is doubled, flow . Anticipate surges. Suitable for process automation control and many general purpose applications. Relieve pressure. Pressure Retaining Valve 586. Blue Ductile Iron Pressure Sustaining Valve With Nylon - Reinforced Diaphragm. The P09 series direct acting pressure sustaining/back pressure valve, is a well proven direct acting design from Z Tide. 920GS. When the inlet pressure exceeds the set value, the valve opens rapidly to maintain . Stainless Steel Pressure Relief, Sustaining or Backpressure Control Valve. Back Pressure valve Flomatic Corporation manufactures Back Pressure Valves (Control / Sustaining) that throttle to maintain a minimum upstream (inlet) pressure regardless of changes in demand downstream. Pressure Sustaining Valve is also known as Back Pressure Valve. Plus more. Get in touch with us. The pilot valve reacts immedi-ately to changes in pressure and . Equilibar precision pressure sustaining valves are referred to as back pressure valves or regulators. It is Function of a Pressure Regulator: It is a hydraulically operated, pilot controlled, modulating type valve. When working, the valve senses the pressure of inlet of the valve through the pressure relief pilot, which controls the valve to open and to close. (also known as Back Pressure or Sustaining Valves) Fig. Whatever their purpose, our valves give you the protection your application needs. 920GS (Globe) and 920AS (Angle) Series is designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and throttle when upstream pressure falls below the adjustable setpoint. Convenient in-style mounts either horizontally or vertically. When installed off the main line on the branch . Have a question or two? The main valve opens when inlet pressure begins to exceed a preset pressure and will allow . It is used where pressure relief or pressure sustaining functions in a Body pressure range: 25bar. LFF116. Pressure Sustaining Valves (PSV) sense the upstream pressure and compare it to the setpoint to determine the valve position in order to maintain a set pressure upstream. Customer Support Pressure Relief, Sustaining, or Backpressure Control Controlling Pump Output Pressure Precision Low Pressure Gas Delivery Tubing Extrusion Systems Tubing extrusion is an example of an application where very low pressure control is required across widely varying flow rates. ph: +613 9544 4546. It can be used for protection of waste . Slow shut off design and impact prevention Completely automatic operation Model 41-03 pressure relief, sustaining, back pressure valve can maintain upstream pipe pressure. The upstream hydraulic grade and pressure increase. 0 - 5000 kPa Stainless Steel 10mm - 50mm Screwed Sealing cap over adjusting screw. They work in a different way from traditional valves. BACK PRESSURE SUSTAINING VALVE - Sustains a minimum upstream pressure to prevent over drafting the supply. Made of fully molded, high-grade plastic, this is an intelligent addition to any piping system. Fast-opening. Series LFF116, LFF1116 Pressure Relief, Sustaining or Backpressure Control Valve is designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and throttle toward closed when upstream pressure falls below the adjustable setpoint. info@hypervalves.com . Hyper valve is the right place to buy back pressure regulator at low price. Typical sustained back pressure valves are available with a range of adjustable pressure settings such 1 to 6 bar, 4 to 10 bar or 8 to 13 bar and can be adjusted within these pre-set parameters via the adjustment screw . may only have to operate intermittently to prevent pressure surges that might occur on pump start, pump stop, or sudden downstream valve closure.

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