Wafer Type Dual Plate Swing Check Valve
Material For Choice
Carbon steel | A216 Gr. WCB, WCC, WCA, etc |
Low temperature steel | A352 Gr. LCB, LCC, LC1, etc |
Cr-Mo steel | A217 Gr. WC6, WC9, C5, C12, C12A, etc |
Stainless Steel | A351 Gr. CF8, CF8M, CF3, CF3M, CF8C, etc |
Alloy steel | CN7M alloy 20, CN3M alloy 20 modified, CT15C, etc |
Super duplex | A995 Gr. 4A, 5A, CE8MN, CD6MN, CD3MN, etc |
Aluminum bronze | B148 C95500, C95600, C95800, etc |
Monel | M30C, M35-1, CZ100, etc |
Inconel | CY40 inconel 600, etc |
Hastelloy | CW2m Hastelly C4, N12MV Hastelloy B, CW12MW Hastelloy C276, etc |
Incoloy | CU5MCuC Incoloy 825, CW6MC Incoloy 625, etc |
Specifications
Applied widely;
Small volume and light weight;
Rapid closing and flexible actions of the valve clack;
Smooth fluid passageway and small fluid resistance;
Small closing impact, water hammer is not liable to be generated;
Compact and reasonable product structure, reliable tightness and good performance.
Applicable Standards
Inspection and test: API598, JB/T9092;
Design and manufacture: API594, API 6D, JB/TB8937;
Face to face and end to end: API594, API6D, DIN3202, JB/T8937;
Pressure-temperature rating: ASME B16.34, DIN2410, GB/T9124, HG20625, SH3406, JB/T74;
Pipe flange: JB/T74-90, JB/T9112-9124, HG20592-20635, SH3406, ASME B16.5, DIN2543-2548, GB/T13402, API605.
Advantage
Two arch disc are fixed onto the valve body with a spindle on which two torsional springs are equipped for installing the butterfly plate onto the valve body sealing face. The butterfly plate pressed by the springs is opened by relying on the medium pressure, and the valve is closed by the spring force and the medium pressure under backflow. It can be installed on horizontal and vertical pipelines.
Application
Petroleum, chemical engineering, metallurgy, light industry, power station, city building, water supply system, oil transportation, gas feeding, natural gas and long distance transportation pipes projects.