Atwood & Morrill® Cold Reheat Check valves are designed to reliably protect the High Pressure Steam Turbine from damage caused by reverse flow and bypass steam. The design prevents reheat steam from returning to turbine on trip and protects the high pressure turbine exhaust from bypass steam and water when the turbine bypass system operates.
Proven swinging disc design
Inclined seat for short travel and quick operation
Wide, flat, non-jamming seats for tight seal
Smooth flow passages for low pressure drop
In-line maintenance through bolted top cover
Closing assist or Double acting air cylinder
Capable of withstanding multiple rapid closures
HP Extraction Steam
Cold Reheat Steam
ASME B16.34
ASME Class 300 to 1500
16″” to 42″” (400 mm to 1050 mm)
Up to 1,200ºF
N/A
Carbon steel, Alloy steel
Weld End or Flanged
Air cylinder modification, Packing upgrade, Mechanical seal replacement, Live loaded packing
