Fisher 627 Series direct-operated pressure reducing regulators are for low and high-pressure systems. These regulators can be used with natural gas, air or a variety of other gases. Performance characteristics vary according to construction.

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Also Consider The Marshall Excelsior 1627, a Comercial/Industrial High Pressure Regulator

The 627 Series direct-operated pressure reducing regulators (Figure 1) are for low and high-pressure systems. These regulators can be used with natural gas, air or a variety of other gases. Performance characteristics vary according to construction (see the Specifications section).

Features:

Internal Relief Valve
Types 627R and 627MR Travel Stop
Relief Operation Indicator
Easy to Maintain
Installation Adaptability
Application Versatility
Tamper-Resistant
Wide Range of Flow Capabilities

Available Models:

Model Number	Outlet Pressure Adjustment Range	Connections Inlet x Outlet	Orifice	Capacity BTU/HR Propane*
627-5810	5 to 20 psi	3/4" NPT x 3/4" NPT	3/8"	6,080,000
627-6210	5 to 20 psi	3/4" NPT x 3/4" NPT	1/2"	10,755,000
627-7710	5 to 20 psi	1" x 1" NPT	1/2"	10,773,000

Resources: