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.
Body Sizes and End Connection Styles 3/4, 1, or 2: NPT end connections
NPS 1 or 2 / DN 25 or 50: CL150 RF, CL300 RF, CL600 RF flanged end connections
Maximum Inlet Pressure NPT Steel: 2000 psig / 138 bar
Flanged Steel: 1500 psig / 103 bar
Ductile Iron: 1000 psig / 69,0 bar
Outlet Pressure Range 5 to 500 psig / 0,34 to 34,5 bar in six ranges
Pressure Registration Type 627, 627H or 627R: Internal
Type 627M, 627HM or 627MR: External through 1/4 NPT internal control line connection in the diaphragm case
Temperature Capabilities -20° to 180°F / -29° to 82°C
Approximate Weights Ductile Iron or Steel Casings: 10 pounds / 5 kg
Aluminum Casings: 6.3 pounds / 3 kg
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