Fisher 627 Series Pressure Reducing Regulators
Rp123000.00
Professional Product Specification
The Fisher 627 Series Pressure Reducing Regulators are direct-operated, spring-loaded pressure regulators engineered for accurate downstream pressure control in natural gas, air, propane, and other industrial gas applications. Designed for reliability, durability, and stable performance, the 627 Series is widely used in industrial plants, commercial gas systems, burner applications, fuel gas supply lines, and OEM installations.
These regulators provide excellent overpressure protection, fast response characteristics, and consistent outlet pressure regulation under varying flow conditions. The rugged construction and compact design make the 627 Series suitable for demanding operating environments.
General Specifications
Description | Specification |
|---|---|
Product Type | Pressure Reducing Regulator |
Series | Fisher™ 627 Series |
Manufacturer | Emerson |
Operating Principle | Direct-Operated, Spring-Loaded |
Application | Natural Gas, Air, LPG, Industrial Gas |
Body Size Range | 3/4 in. to 2 in. |
End Connection Style | NPT Threaded / Flanged |
Body Material | Cast Iron, WCC Steel, Stainless Steel |
Maximum Inlet Pressure | Up to 250 psig (17.2 bar) |
Outlet Pressure Range | 5 in. w.c. to 125 psig |
Temperature Capability | -20°F to 150°F (-29°C to 66°C) |
Control Accuracy | High Sensitivity and Stable Regulation |
Internal Relief | Available on Selected Models |
Vent Type | Screened Vent |
Mounting Position | Horizontal or Vertical Installation |
Compliance Standards | ANSI, ASME, NACE Compatible Options |
Key Features
Accurate downstream pressure control
Compact and rugged industrial design
Fast response to changing flow demand
Excellent pressure regulation stability
Optional internal relief valve protection
Suitable for natural gas and industrial gas systems
Corrosion-resistant construction options available
Easy maintenance and field servicing
Reliable performance in continuous-duty applications
Typical Applications
Industrial gas distribution systems
Burner and furnace fuel gas control
Commercial gas service
Oil & gas processing facilities
Utility gas regulation stations
Boiler fuel gas systems
OEM skid packages
Air and inert gas regulation
Available Configurations
Model | Description |
|---|---|
627 | Standard pressure reducing regulator |
627R | Regulator with internal relief |
627M | Monitor regulator configuration |
627HM | High-pressure monitoring regulator |
627LE | Low-emission version |
Advantages
The Fisher™ 627 Series regulators are recognized worldwide for their dependable operation, long service life, and low maintenance requirements. Their robust construction and versatile configuration options make them ideal for both standard and critical pressure control applications in industrial and commercial environments.




