Fluidline Valves

Swing Check Valves

A Swing Check Valve or tilting disc check valve is check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow, or off the seat to allow forward flow.

Design features: The body is designed for strength to meet operating conditions, and contoured to minimize erosion and resistance to flow. The disc is opened and sustained in open position by the Velocity pressure of the fluid and closed by the force of gravity. Seating load and resultant tightness is aided by back pressure in the line. The body seat-ring is seal-welded to the body avoiding leakage in the path between the seat ring and the body. The seating surfaces are ground and lapped.

Applications: Chemicals, Fertilizers, Feed Water, Petroleum, Power Generation, Steel Industries and Effluent Treatment Plants

Operators: Automatic/Hydraulic Damper/Counter Weights.

Production Capacity: 2" - 2" - 400 Nos/Month, 14" - 20" - 50 Nos/Month
Size Range
ANSI Class
Cast Carbon Steel / Cast Aloy Steel
2" - 20"
Bolted or Pressure Sealed
150# - 2500#
BS 1868 API 6D.
Cast Stainless Steel
2" - 20"
Bolted or Pressure Sealed
150# - 2500#
BS 1868 API 6D.
2" - 8"
Bolted Bonnet
150# - 600#
BS 1868 API 6D

Temperature range: -100°C to 600°C
Pressure Rating: Vacuum upto 621 Kg/Cm²
Mfg Standard: BS1868
End to End Dimension: ANSI B16.10
Inspection Std.: API 598/BS 6755
Ends: Flanged/Buttweld