Fisher 67CFR-237 67C Series Instrument Air Filter Regulator
The Fisher 67CFR-237 Pressure Regulator is an industrial-grade instrument air filter regulator engineered to provide clean, stable, and accurately controlled air pressure to pneumatic instrumentation and process equipment. Manufactured by Emerson under...
- Manual Brass Drain Valve Drain Valve Type
- 1/4 Inch NPT Female Pressure Gauge Port
- Up to 20 scfm (depending on inlet pressure) Flow Capacity
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- Fast dispatchAustralia & worldwide
- Technical supportTalk to an engineer
- 1 YearWarranty
Product Overview
The Fisher 67CFR-237 Pressure Regulator is an industrial-grade instrument air filter regulator engineered to provide clean, stable, and accurately controlled air pressure to pneumatic instrumentation and process equipment. Manufactured by Emerson under the Fisher 67C Series, this direct-operated, spring-loaded regulator reduces variable high-pressure supply air down to a consistent downstream operating pressure. It features an integrated 5-micron particulate filter that effectively removes airborne moisture, rust, scale, and contaminants before air enters sensitive pilot devices.
Designed specifically for harsh industrial and offshore environments, the 67CFR-237 incorporates an internal relief valve and an internal relief vent to vent downstream overpressure safely. The unit includes a standard manual brass drain valve for purging accumulated condensate and particulate buildup from the filter bowl. Its rugged aluminium housing, corrosion-resistant internal trim, and nitrile diaphragm deliver long service life and exceptional pressure stability across pneumatic valve positioners, transducers, air cylinders, and automated process control loops.
Technical Specifications
| Specification | Value |
| Product Name | Instrument Air Filter Regulator |
| Manufacturer / Brand | Fisher / Emerson |
| Model Number | 67CFR-237 |
| Product Series | 67C Series |
| Regulator Type | Direct-Operated Spring-Loaded Filter Regulator |
| Inlet Connection | 1/4 Inch NPT Female |
| Outlet Connection | 1/4 Inch NPT Female |
| Pressure Gauge Port | 1/4 Inch NPT Female |
| Maximum Inlet Pressure | 250 psig (17.2 bar) |
| Standard Outlet Pressure Range | 0 to 60 psig (0 to 4.1 bar) |
| Filter Rating | 5-Micron Sintered Polyethylene |
| Internal Relief Valve | Integrated High-Capacity Internal Relief Valve |
| Drain Valve Type | Manual Brass Drain Valve |
| Body and Bonnet Material | Die-Cast Aluminium |
| Diaphragm and O-Ring Material | Nitrile Rubber (NBR) |
| Valve Plug and Seat Material | Nitrile and Brass / Stainless Steel |
| Operating Temperature Range | -29°C to +82°C (-20°F to +180°F) |
| Flow Capacity | Up to 20 scfm (depending on inlet pressure) |
| Pressure Adjustment Mechanism | Square Head Adjustment Screw with Locknut |
| Approximate Net Weight | 0.90 kg (2.0 lb) |
| Operating Medium | Clean Compressed Instrument Air, Non-Corrosive Gas |
| Condition | New |
| Warranty | 1 Year |
Key Features
Direct-operated pressure regulation provides consistent supply pressure across fluctuating inlet conditions
Integrated 5-micron filter removes fine particulates, liquid droplets, and pipe scale
Built-in internal relief valve protects sensitive downstream equipment from excessive overpressure
Manual brass drain valve allows quick, effective purging of liquid condensate from the filter bowl
Rugged die-cast aluminium body and spring case engineered for demanding industrial environments
Adjustable pressure screw with locknut maintains calibrated settings under severe pipeline vibration
Standard 1/4-inch NPT pneumatic ports enable simplified in-line piping and gauge installation
Nitrile diaphragm and elastomeric seals ensure positive shutoff and bubble-tight sealing
Directly compatible with Fisher FIELDVUE digital positioners and pneumatic valve actuators
Typical Applications
Instrument supply air regulation for pneumatic control valve positioners
Supply pressure filtration and reduction for current-to-pressure (I/P) transducers
Pilot air control for pneumatic piston actuators and quarter-turn rotary operators
Oil and gas upstream production facilities, offshore platforms, and refinery skids
Chemical and petrochemical processing plants and hazardous automation enclosures
Power generation utility air supply and boiler feed valve instrumentation
Industrial manufacturing automation, air purging cabinets, and pneumatic test benches
Shipping & Support
Fast dispatch: Australia & Worldwide Shipping
Technical assistance available
1-year warranty
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