Industrial Gas Regulator Emerson Fisher 627 627R 627LR 627M 627MR 627H 627HM Air Pressure Regulator Internal Relief Valve

The Fisher 627 Pressure Regulator is a versatile, direct-operated regulator tailored for low-flow gas applications in residential and commercial systems. With sizes from 3/4" to 2" and an internal relief option, it maintains stable outlet pressures from 3 to 20 inches water column for appliances like dryers and ovens. Its cast iron body and neoprene diaphragm ensure durability and responsiveness, while NPT connections facilitate easy installation. The 627's simplicity and adaptability make it a staple for natural gas distribution, providing consistent performance with minimal pressure variation.

Versatile Sizing

• : 3/4" to 2" NPT for various flow needs.
• Direct Operation: Quick response without pilots for efficiency.
• Internal Relief: Optional for automatic overpressure venting.
• Neoprene Diaphragm: Flexible and long-lasting for stability.
• Compact Form: Fits in meter cabinets and appliance lines.
• Low-Flow Capacity: Up to 1,700 SCFH for precise regulation.
• Corrosion Protection: Epoxy-coated for environmental resistance.
• Easy Adjustment: Spring-loaded for field tuning.

The Fisher 627 Pressure Regulator supports versatile low-flow gas regulation:

• Meter Outlets: Regulates from meters to appliances.
• Appliance Lines: Supplies ovens, dryers, and heaters.
• Commercial Meters: Low-pressure delivery in businesses.
• Propane Conversion: Adapts to LP gas systems.
• Small Industrial: Pilot lines and low-demand burners.

Up to 1,700 SCFH for low-flow needs.

Yes, optional for overpressure protection.

No, works with propane and mixed gases.

Spring-loaded for simple field tuning.

-20°F to 150°F for standard conditions.

Contact our team for inquiries about the Fisher 627 Pressure Regulator, pricing, or to schedule a demo:

• Email: annie@gongboshi.com
• Phone: +8613390047176

• Fisher 627H: High-pressure model.
• Fisher 627R: Relief regulator.
• Fisher CS400: Commercial series.
• Emerson Regulator Services: Repair and maintenance.