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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.