Hydraulically operated, diaphragm actuated quick pressure relief valve that relieves excessive system pressure when such pressure rises above a pre-set value.It responds immediately, accurately, and with high repeatability to a rise in system pressure by opening fully. It also provides a smooth drip tight closing.
BERMAD 700 series valves are hydraulically operated globe valves available in either standard oblique (Y) or angle (A) pattern design. They have a full bore hydrodynamic body providing an unobstructed flow path, with a seat assembly and double chamber unitized actuator that can be disassembled from the body as a separate integral unit.
This drawing refers to 1½ – 8”; 40-200 mm sized valves only. For other sizes please refer to the Model’s IOM.
Valve Patterns: “Y” (globe) & “A” (angle)
Size Range: 11/2–24”; 40-600 mm
Pressure Rating: 25 bar; 400 psi
End Connections: Flanged (all standard)
Threaded: BSP or NPT
Others: Available on request
Temperature Rating: 60°C; 180°F for cold water applications
Optional Higher temperature: Available on request
Body & actuator: Ductile Iron
Bolts, nuts & studs: Stainless Steel
Internals: Stainless Steel, Tin Bronze & Coated Steel
Diaphragm: Fabric-reinforced synthetic rubber
Seals: Synthetic rubber
Coating: Dark blue Fusion bonded epoxy
Accessories: Stainless Steel, Bronze & Brass
Tubing: Stainless Steel or Copper
Fittings: Stainless Steel or Brass
Pilot Standard Materials: Body: Stainless Steel, Bronze or Brass
Elastomers: Synthetic Rubber
Spring: Stainless Steel
Internals: Stainless Steel
Pilot Options: Please contact us for more information.