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Cast Iron Lift Check ValveSize: DN50-DN300. Working pressure: PN16. Temperature Range: ≤200°C. Face to Face: EN 588-1. Flange drilled: EN 1092-2.read more
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Stainless Steel Double Disc Check ValveSize: DN50-DN350 Working pressure: 10/16 bar Temperature range: -20°C - 150°C Connection Ends: BS EN 1092 PN10/16, AS 2129 TABLE E, BS 10 TABLE D/Eread more
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Flanged Ball Check ValveSize: DN40-DN300 Working pressure: 16 bar Temperature range: -20°C - 80°C Flange Standard: EN 1092 ISO PN16read more
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Rubber Disc Swing Check ValveSize: DN50-DN400. Working pressure: PN16. Temperature Range: 0°C- 80°C. Face to Face: BS 5163. Flange drilled: BS 4504.read more
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Double Disc Wafer Check Valve-HSize: DN50-DN600. Working pressure: PN10/16. Temperature Range: 0°C- 80°C. Connection Ends: BS EN 1092 PN10/16, AS 2129 TABLE E, BS 10 TABLE D/E.read more
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Sandwich Type Swing Check ValveSize: DN40-DN600. Working pressure: PN10/16. Temperature Range: -196°C- 560°C. Face to Face: DIN 3202/API594/API6D.read more
WebSep 28, 2021 · A check valve, also known as a non-return or one-way valve, is a two-port safety device that allows gas, steam, or fluid to flow in a single direction. Its primary...
WebFeb 24, 2016 · All sewer backflow valve devices require periodic maintenance, and more importantly should be tested by a knowledgeable person. Once again, only certified testers are allowed to do...
WebOct 28, 2022 · The Double Check Valve Assembly (DCVA) and the Reduced Pressure Zone Assembly (RPZA) are the most used backflow preventers for fire protection systems, but I will discuss all the...
WebFeb 25, 2010 · There are two kinds of backflow devices: a reduced pressure principle device and double check valves. Examine the kind of device that you will be testing. Also investigate the...
WebApr 28, 2020 · Backflow occurs when pressure changes in pipes cause the flow of liquids, gas, or semisolids to reverse in the wrong direction. Check valves are designed to ensure...
WebA check valve, also called a one-way valve, is a device that allows the flow of fluids to move only in one direction. The primary purpose of a check valve is to prevent backflow in the system....
