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BRAY Isolation and control valves
Check Valves
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  Bray/Rite: Single Door Wafer Type Swing Check Valves

Bray/Rite Wafer combination swing Check Valves

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Size Range
25mm to 1500mm
Temperature Range
Cryogenic/High Temp.
Operating Pressure
ASME 125,150, 300
Body Materials
ASTM A126 CLB / A395 / A216 WCB / A351 CF8M, Titanium
ASTM, Titanium
Disc Materials
SS316 as standard (or Higher Grade)
SS316 as standard
Seat Materials
BUNA-N, EPDM, A240 - 304 (Inserted or Integral), PFTE, Viton
BUNA-N, EPDM
Body Style
Wafer, Flanged, RTJ
Wafer, Flanged, RTJ

 Bray/Rite wafer combination swing check valves are flow activated, and Rite Sized. Bray/Rite inlet ports and disc have been shape optimized to achieve a fully open position at low flow rates (3 ft/s on average). Therefore, the Bray/Rite operates exceptionally well in the flow rates typically found in pipelines containing control valves and lines with varying media flows.

 Compare the Bray/Rite to typical full-sized swing check valves-- Due in part to their oversized, heavier discs, these valves only fully open at an average flow rate of 11 ft/s. When activated at a lower flow rate, these valves loose true controllability and do not fully open. A partially open disc creates an obstruction that produces a higher pressure drop and fluttering of the valve disc - disturbing the flow and increasing the chance of water hammer.

 Bray/Rite is Rite Sized to eliminate these problems. It has been engineered to accelerate line media through the valve and achieve a virtually unobstructed full opening in low pressure. Rite Sized, combined with the limited movement of internal parts during operation, reduces wear – enhancing the long service life of a Bray/Rite valve.

  Double Door: Dual-Disc Check Valve with Reduced Water Hammer Potential

Double Door Wafer Check Valves

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Size Range
50мм - 300мм
Temperature Range
-45°C to 148°C
Operating Pressure
ASME CL - 150
Body Materials
Ductile Iron, Stainless Steel
Ductile Iron, SS
Disc Materials
SS316
SS316
Seat Materials
BUNA, EPDM
BUNA, EPDM
Body Style
Wafer Swing Type
Wafer Swing Type

 The Bray/Rite double door check valve is designed for energy efficient protection against flow reversal.

 Featuring dual lightweight discs, responsive independent springs and a durable resilient seat for reliable flow-activated operation with tight sealing and reduced water hammer potential.

  • COST EFFICIENT DESIGN: Low weight and short laying length saves initial cost, requires less space, and is easier to install
  • QUICK CLOSE: Independent springs provide quick-closing, non-slam shutoff for reduced water hammer potential
  • LOW CRACKING PRESSURE: Lightweight, spring-loaded discs have low cracking pressure for energy efficient operation
  • MINIMAL HEAD LOSS: Contoured body provides a short and straight flow path with minimal turbulence