Check Valves (Dart Type)

Check valves are unidirectional and usually installed in high pressure pipelines for preventing fluid flowing back in well service operation, their retainer plates will automatically close if fluid is pushed back.

    Recommended Service
  • High-pressure well service flowlines, flowhead, frac manifold, cementing manifold
  • Other well service, stimulation and abrasive applications
  • Cold Working Pressure: from 6,000psi to 15,000psi
  • Nominal Pipe Size: 2" to 4"
  • End Connection: Fig 602, Fig 1002, Fig 1502
  • Sour gas service are available
  • Forged of high strength alloy steel
  • The retainer plate inside sulfurized with Buna-N has a good sealing effect and a longer service life under high pressure
check valve