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Fisher™ H800 型泄压阀
Fisher™ H800 型泄压阀
Fisher™ H800 型泄压阀

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Fisher™ Type H800 Pressure Relief Valve

Fisher series

The Model H800 pressure relief valve is a compact, lightweight, direct-operated pressure relief valve. It is mainly used between pneumatic instruments and their supply pressure regulators to limit the instrument supply pressure to 50 psig / 3.4 bar when the supply pressure regulator cannot be opened.
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Product details
Valve body size and port connections
1/4 NPT
Flow coefficient
Fully open Cg: 55
Km: 0.79
Maximum allowed inlet (relief) pressure
250 psig / 17.2 bar
Pressure relief range
Not adjustable, relieves pressure at 39 to 44 psig / 2.7 to 3.0 bar
seat back pressure
35 psig / 2.4 bar or higher
Temperature applicable range
-20 to 150°F / -29 to 66°C
Approximate weight
5 oz. / 140 g
Other technical data
For additional technical information, please contact your local sales office or refer to the technical documentation.


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