English Parameters / Specifications Model: 67CFR-224/GF Series: Fisher 67C Series (Instrument Supply Regulators) Body Material: Aluminum (standard for 67C) End Connections: ¼ in NPT (inlet & outlet) Maximum Inlet Pressure (Body Rating): 250 psig (≈17.2 bar) Outlet (regulated) Spring Range: 0–35 psig (≈0–2.4 bar) for the “224” variant Maximum Emergency Outlet Pressure (i.e. relief above set outlet): 50 psig (≈3.4 bar) above the outlet setting Filter: Integral internal filter (particulate filter element included) Internal Relief Valve: Yes — built-in soft-seat relief to relieve downstream pressure above setpoint Temperature Capability (depending on elastomer choice): Nitrile (NBR): –40 °F to +180 °F (≈ –40 °C to +82 °C) Fluoroelastomer (FKM): 0 °F to +300 °F (≈ –18 °C to +149 °C) Silicone (VMQ) with low-temperature bolting: –60 °F to +180 °F (≈ –51 °C to +82 °C) Media: Air or compatible gases (must be compatible with elastomer and body materials) Typical Applications: Instrument air supply regulation, panel-mounted regulators, pneumatic controllers, valve positioners Approximate Weight: For the 67C/67CFR aluminum body version ~1 lb (≈0.5 kg)
