Swing Check Valves

Listing ID #1518079

Design features :

• design and manufacturing : bs 1868
• inspection and testing : api 598 , bsen 12666 part 1 & 2
• end flanges dimension : asme b 16.5(for nps ≤ 24”) series a & b (for nps ≥ 24), mss sp – 44 (for nps ≥ 24)
• bw end dimension : asme b 16.25
• face to face & end to end dimension : asme 16.10, bs 2080
• special features :
  • counter weight arrangement
  • hydraulic cylinder arrangement
  • ibr certified
  • nace mr 0175 & mr 1030
  • lift type check valves will be supplied for the sizes for nps < 2” rest of the sizes are in swing type design.
• gasket design : asme b 16.20
• disk design : gravitational acceleration
• while not a valve in the traditional sense, check valves serve an important application namely to prevent flow in one direction while allowing it in the other. A check valve is self-actuated and designed to prevent fluid from flowing back into the system (prevent reverse flow). Real-life applications include preventing back flow into an injection line or into a pump. The fluid flow opens the valve by forcing a disk or ball in one direction. When the flow stops, the disk or ball is seated and closes the valve. They can be installed in horizontal or vertical upward flow piping.