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Fisher™ 912N Series Pressure Regulators
912N Series direct-operated, spring-loaded regulators are used in service and industrial applications.
These regulators have limited-capacity internal relief across the diaphragm to help minimize overpressure. Any outlet pressure above the start-to-discharge point of the non-adjustable relief valve spring moves the diaphragm off the relief valve seat, allowing excess pressure to bleed vent. 912N Series regulators are built to provide accurate, sensitive control.
Fisher™ 912N Series Pressure Regulators


Body Size and End Connection Styles
Inlet: 1/4 NPT
Outlet: 1/4 or 3/8 NPT
Maximum Inlet Pressure
250 psig / 17,2 bar
Maximum Allowable Outlet Pressure
Emergency Outlet Pressure: 20 psig / 1,4 bar
Recommended Outlet Pressure to Avoid Internal Parts Damage: 3 psi / 0,21 bar differential above outlet pressure setting
Pressure Registration
Temperature Capabilities
-20° to 160°F / -29° to 71°C
Approximate Weight
1.30 Pounds / 0,6 kg


  • Accurate, Sensitive Control
  • Versatility
  • Weather and Insect Protection
  • Easy Maintenance