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Fisher 289 Series Relief Valves or Backpressure Regulators
Fisher 289 Series relief valves are spring-loaded throttling relief valves used as downstream pressure regulators to protect the system from overpressure. A smooth throttling action minimizes pressure surges in the system during relief operation.
Details
FEATURES
1.Throttling Type Relief
2.High Flow Rates
3.Small Size
4.Reliability Due to Simplicity
5.Compact Design
SPECIFICATIONS
Maximum Allowable Relief (Inlet) Pressure
100 psig / 6.9 bar
Relief Set Pressure Ranges (5 models)
5wc to 50 psig / 25mbar to 3.5 bar
Pressure Registration
Internal
Temperature Capabilities
Nitrile (NBR) and Neoprene (CR) Elastomers: -20 to 150°F / -29 to 66°C Fluorocarbon (FKM): 20 to 300°F / -7 to 149°C Available with Types 289H and 289HH only
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Application area
能源
化工
矿业
医药
