Overview
The Fisher 67AFR/224 is a pilot-operated pressure reducing regulator manufactured by Emerson (Fisher Controls). Designed for reliable and precise control of gases or liquids in industrial applications, this regulator features robust internal construction that maintains steady downstream pressure even with fluctuating inlet pressures or varying flow rates. The 224 pilot assembly is calibrated specifically for the 0-35 PSI outlet range, making this unit ideal for process lines, utility equipment, and OEM systems requiring stable pressure management.
Key Features
- Pilot-operated design for superior regulation stability and repeatability
- Maximum inlet pressure rating of 250 PSI (17.2 bar)
- Outlet pressure adjustable range: 0–35 PSI with 224 pilot mechanism
- Aluminum body construction for corrosion resistance and durability
- Size 2, 2″ NPT threaded connections for industrial piping systems
- Direct-operated control suitable for air, nitrogen, and gas applications
Technical Specifications
- Type: 67A Series pilot-operated pressure reducing regulator
- Maximum Inlet Pressure: 250 PSI (17.2 bar)
- Outlet Pressure Range: 0–35 PSI adjustable
- Pilot Spring Range: 5–35 PSI
- Body Material: Aluminum
- Port Size / Connection: 2″ NPT (National Pipe Thread)
- Weight: 1.84 lbs (0.84 kg)
- Internal Relief: Soft seat with minimal leakage
- Manufacturer: Emerson / Fisher Controls
Typical Applications
The Fisher 67AFR/224 is widely used in:
- Natural gas distribution systems (station inlet/outlet control)
- Industrial process air and nitrogen lines to machinery and heaters
- Pneumatic and electropneumatic controller supply systems
- District regulator service and utility equipment
- OEM equipment requiring precision pressure reduction and control
- Air chucks, air jets, and spray gun supply regulation
Compatibility & Replacements
Compatible With
- Fisher 67C Series regulator platforms
- Industrial compressed air and inert gas systems
- Pneumatic control valve circuits requiring stable pilot pressure
- Standard NPT-threaded industrial piping infrastructure
- Emerson/Fisher measurement and control packages
Replaces / Drop-In Replacement For
- Fisher 67AFR series pilot-operated regulators with 224 pilot assembly
- Direct replacement for discontinued or worn 67AFR/224 units in existing systems
- Verify compatibility with your system integrator before ordering to ensure pilot configuration matches application requirements.
Works With
- Emerson Fisher instrumentation and control systems
- Standard industrial pressure gauges (0-60 PSI recommended)
- Manual and automated pressure adjustment mechanisms
- Compressed air distribution networks and utility supply lines
























