67CFR Instrument Supply Fisher Gas Regulator Fisher Pressure Control Valve For Reducing Pressure 67CFR-237

67CFR-237 Fisher Instrument Supply Filter Regulator

Fisher 67CFR : filter regulators have an internal relief valve with a soft seat for reliable shutoff with no discernible leakage.

Fisher 67CFR-237 direct-operated regulators and filter regulators are typically used to provide constantly controlled, reduced

pressures to pneumatic and electropneumatic controllers and other instruments. These are suitable for most air or gas applications.

Other applications include providing reduced pressures to air chucks, air jets, and spray guns.

Types 67CFR-Filter Capabilities

Free Area: 12 times pipe area

Micron Rating: Polyethylene Filter (Standard): 5 microns Glass Fiber Filter (Optional): 5 microns PVDF or Stainless Steel Filter

(Optional): 40 microns

Drain Valve and Spring Case Vent Location

Aligned with inlet standard, other positions optional

Principle of Operation

Downstream pressure is registered internally on the lower side of the diaphragm. When the downstream pressure is at or above

the set pressure, the valve plug is held against the orifi ce and there is no flow through the regulator. When demand increases,

downstream pressure drops slightly allowing the spring to extend, moving the stem down and the valve plug away from the orifi ce.

This allows fl ow through the regulator.

Internal Relief (Fisher 67CFR model )

If for some reason, outside of normal operating conditions, the downstream pressure exceeds the setpoint of the regulator, the force

created by the downstream pressure will lift the diaphragm until the diaphragm is lifted off the relief seat. This allows flow through the

token relief. The relief valve on the Type 67CFR is an elastomer plug that prevents leakage of air from the downstream to atmosphere

during normal operation, thereby conserving plant air.

Available Configurations

Body Size and End Connection Style
1/4" NPT

Maximum Inlet Pressure (Body Rating)
250 psig / 17.2 bar
Outlet Pressure
0-60 psi

Pressure Registration
Internal

Temperature Capabilities
With Nitrile (NBR):
Standard Bolting: -20 to 180°F / -29 to 82°C
With Gauges: -40 to 180°F / -40 to 82°C