Separate Opening Closing Speed Check valve (ACV-700)

NU-TECH ACV Non-Surge Check Valves are equipped with separate adjustable opening and closing speed controls to avoid pipeline surges.

  • Easily maintained without removal from the line
  • Replaceable seat ring.
  • Heavy-duty, nylon-reinforced diaphragm.
  • Operates automatically offline pressure.
  • Diaphragm assembly guided top & bottom
  • Diaphragm replaced without removing internal steam assembly.
  • Pump is protected from reverse flow.
  • Maximum corrosion protection.

  • Non-Surge Check Valve is designed to control pipeline surges caused by flow reversal by slowly opening and closing at separate adjustable rate.
  • Operates on the differential between two pressures,upstream pressure which acting under the seat of the valve & downstream pressure which acting on diaphragm via single hydraulic line.

  • No surge check valve
  • Opening speed control only
  • Closing speed control only

End Connection Flanged End, Threaded End
Face to Face Standard Manufacturing Standard
End connection Standard DIN EN 1092-1, ASME B16.5
Testing Standard API 598
Sizes 1/2” to 28”
Class 150#, 300#, PN 6, PN 10, PN 16, PN 25
Media Water
Body Material CI/CS/SS/Alloy Steel etc.
Trim Material SS304/SS316 etc.
Soft Seat Material NITRILE/VITON/EPDM etc.