The Y695A backpressure/relief valves are direct-operated and are used to maintain a constant inlet pressure or vessel pressure with the outlet flowing to atmosphere or to a system whose pressure is lower than the inlet.
The Type Y695AM has a blocked throat and O-ring stem seat to allow for external pressure registration. The lower diaphragm case is tapped 1/2-inch NPT for control line connection.
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Body Sizes
3/4 or 1-inch (DN 20 or 25)
Relief Set Pressure Range
2-inches w.c. to 7 psig (5 mbar to 0,48 bar) in six ranges
Pressure Registration
Type Y695A: Internal
Type Y695AM: External
Temperature Capabilities
Nitrile (NBR): -20 to 180°F (-29 to 82°C)
Fluoroelastomer (FKM): 40 to 300°F (4 10 149°C)
Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)
Ethylenepropylene (EPDM): -20 to 275°F (-29 to 135°C)
Additional Technical Data
For additional technical information,
contact your Local Sales Office or refer to technical documentation.
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