Check Valve price

Check Valve price GZP dual -plate check valves are manufactured to the latest edition of API 594/API 6D and tested to API 598.All valves from GZP VALVE are strictly 100%tested before shipment to guarantee zero leakage. Dual-plate Check Valve is also called reflux valve, backpressure valve and one way valve. This type of valves is opened and closed by the force of the flow of media through the pipe. It's an automatic valve. They are widely applied in petroleum, chemical, textile, power, marine, metallurgy, etc. Dual-plate Check Valve is made up by body, plate, stem, and spring etc. Use wafer, flange, lug connection. Because its structure length is shorter than the general check valve, it is most suitable for places with limited installation space. Plate has short closing stroke with can significantly reduce water hammer pressure. The main construction features of GZP Dual-palte check valve are following: 1. Single plate and double plate design are available. 2. The sealing surface can be surfacing wear resistant material or rubber lining. Surfacing welding is carried out in strict accordance with WPS standard, After surfacing welding, the welding surface shall be heat treated, machined, thoroughly cleaned and inspected before assembly. 3. Dual-plate check valve is small in size, light in weight, compact in structure and convenient in maintenance. Technical Data Design StandardAPI6D, BS1868, DIN3356,EN10739 Body MaterialCarbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc. NACE MR-01-75/NACE MR-01-03 Special Requirements Pressures rangeANSI 150 ~ANSI 2500 ,PN10~PN420 Size rangeDN50(2") ~DN1200 (48") Face to FaceANSI B16.10,EN 558,DIN3202 Flanged RF, FF, RTJ EndsASME B16.5 鈮?DN600 (24") ASME B16.47 A 鈮?DN650 (26") BS 4504,DIN 2543-2545,EN1092 Butt-Weld BW EndsASME B16.25 ,DIN 3239,BS 2080, EN 12627 Temperature range-29掳~ 425掳C Design Feature ConstructionDUAL PLATE Disc TypeDual plate, single plate, plug type Seat SealingIntegral body seat ,seat welded and overlaid Fire Safe DesignAPI 607,BS 6755 Inspection & Test Visual InspectionMSS SP-55 Material InspectionPMI Test----Chemical Analysis HB Test---Hardness Test UT---Ultrasonic Test RT---RadiographicTest MT---Magnetic Test NDT Test Non-destructive Dimention inspcetionAccording to drawings Valve Inspection and TestAPI 598,DIN 3230,EN 12266,BS 5146 Standard vs. Retainerless Body Designs Our Dual Plate Wafer Check Valves are available in two different body styles鈥擲tandard and Retainerless. Both versions have the same performance, dimensions, and ratings. In all dual plate check valves, the center pin (off which the discs rotate) and the limiter bar (which prevents the discs from hitting each other) need to be affixed to the valve body. In a standard body style, the result is a penetration through the body wall. In a retainerless design, a sleeve is inserted into the inside of the body, thus avoiding penetrating the body wall. This makes retainerless style valves particularly desirable and applicable for critical Hydrocarbon and Chemical processing applications, or any service where environmental safety or fire hazards are concerned. The Industry Standard Dual Plate Wafer Non-Return Valves (equivalents of Techno鈩?Check Valve 5050, 5051, & 5053) were originally introduced in the late 1950s and quickly became the check valves of choice for many piping engineers because of their proven reliability and low pressure drops. They have become the standard for process and project engineers worldwide and are used extensively in many different industries listed below. Industries 鈼?Power Plants 鈼?Refineries 鈼?Chemical Plants 鈼?Wastewater Treatment Plants 鈼?Pulp & Paper Mills. Our dual plate check valves conform to all industry standards. API 594 dictates valve dimensions, including wall thickness, face-to-face dimensions and OD, so valves can replace any make of ANSI Dual Plate Water Check Valve. Fast Delivery of Dual Plate Wafer Check Valves We are a dual plate check valve supplier that maintains an extensive inventory of valves, parts and components in a wide variety of materials so we can respond to your needs quickly.Check Valve price website:http://www.highmpa-valve.com/check-valve/