BelGAS 300 Series - P309 Relieving Gas Pressure Regulator with Integrated Slam Shut

The BelGAS P309 Over/Under slam shut regulators feature the integrated PSX2 slam shut device which aids in critical protection of downstream operations. Operating on preset values, the P309 regulators automatically stop downstream flow should pressure exceed the upper or lower set limits.

P309_Slam Shut_Overpressure Protection_Under Pressure Protection, pressure reducing regulators, pressure reducing regulator, natural gas regulators, non-relieving pressure reducing regulator, non-relieving regulator
P309_Slam Shut_Overpressure Protection_Under Pressure Protection, pressure reducing regulators, pressure reducing regulator, natural gas regulators, non-relieving pressure reducing regulator, non-relieving regulator
Applications:
  • Industrial/Commercial
  • Gas Engines
  • Service Regulators
Features:
  • Internal or External registration
  • Over/Under Pressure protection
  • Manual Reset
Specifications
Model
P309
Port Size
1.25", 1.5", 1.5" X 2", 2" NPT
Orifice Size
1/4" 3/8" 1/2" 3/4" 1" 1-3/16"
Seat Material
Molded Seat Assembly Nitrile and Aluminum
Application(s)
Pressure Protection, Commercial, Industrial
Pilot Operated
No
Orifice Material
Orifice Aluminum
Connection
NPT, Flanged
Diaphragm Material
Diaphragm Nitrile
Flange Type
125 FF Flanged, 150 RF Flanged
Product Description
Type P309 Relieving Gas Pressure Regulator
Temperature Range(s)
-20° to 180°F (-29° to 82°C)
Max Inlet Body Pressure
125 PSIG (varies by orifice size)
Body, Bonnet, Diaphragm Material
Valve Plug Brass / Nitrile or Fluorocarbon
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