Fisher 627MR Pressure Reducing Regulator with Internal Relief and Stem Seal 3/4 in. NPT Ductile Iron

627MR-34-DI-35-80

Pressure Reducing Regulator with Internal Relief and Stem Seal — Fisher 627MR in Ductile Iron, 3/4 in. NPT, covering 35 to 80 psig (2.4 to 5.5 bar). Suitable for natural gas, LP gas, and instrument air service.

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For natural gas distribution, the Fisher 627MR pressure reducing regulator with internal relief and stem seal offers precise setpoint control with a Ductile Iron body and 3/4 in. NPT connections. Its 35 to 80 psig (2.4 to 5.5 bar) range and 1000 psig (68.9 bar) maximum inlet pressure make it a flexible, low-maintenance choice for new installations and drop-in replacements.

Key Features

  • Maximum inlet pressure 1000 psig (68.9 bar)
  • Outlet range 35 to 80 psig (2.4 to 5.5 bar) via color-coded control spring
  • Internal relief valve bleeds excess downstream pressure for overpressure protection
  • Ductile Iron body for corrosion resistance and long service life
  • External control line registration isolates outlet pressure from the diaphragm case
  • Pitot tube boost compensates for outlet pressure drop at high flow

Full Configuration Details

Complete Ordering Code:
627MR
Pressure Regulator Specifications
Type
Regulator Type
Pressure Reducing Regulator with Internal Relief and Stem Seal
Body
Body Material
Ductile Iron
Size
Body Size
3/4 in. NPT
Range
Outlet Pressure Range
35 to 80 psig (2.4 to 5.5 bar)
Inlet
Maximum Inlet Pressure
1000 psig (68.9 bar)
Relief
Internal Relief
Yes — overpressure protection
Seal
Stem Seal
Yes — downstream control line

Wholesale Supply & Global Shipping

As a Fisher pressure regulator supplier, we keep ready stock and dispatch within 48 hours via DHL/FedEx to any destination. Bulk and OEM pricing available; every unit is factory-certified and covered by a 1-year warranty. Ask for a volume quote — response within 12 hours.

Request a Quote

Email: sales@gt-exim.com  |  WhatsApp: +86 17719526488

Full Configuration Details

Complete Ordering Code:
627MR
Pressure Regulator Specifications
Type
Regulator Type
Pressure Reducing Regulator with Internal Relief and Stem Seal
Body
Body Material
Ductile Iron
Size
Body Size
3/4 in. NPT
Range
Outlet Pressure Range
35 to 80 psig (2.4 to 5.5 bar)
Inlet
Maximum Inlet Pressure
1000 psig (68.9 bar)
Relief
Internal Relief
Yes — overpressure protection
Seal
Stem Seal
Yes — downstream control line

Documents

Manuals: