Supplier BelGAS P309 Relieving Gas Pressure Regulator with Integrated Slam Shut
DISTRIBUTORALATINDUSTRI.COM | BelGAS P309 is a relieving gas pressure regulator with an integrated slam-shut safety device, designed to provide reliable downstream gas pressure regulation while providing automatic overpressure and/or underpressure protection. The integrated design combines pressure regulation and emergency shutoff functions into a single compact assembly.
Supplier BelGAS P309 Relieving Gas Pressure Regulator with Integrated Slam Shut

The P309 regulator continuously controls the downstream gas pressure to maintain a stable and predetermined set point. When an abnormal pressure condition occurs beyond the configured safety limits, the integrated slam-shut mechanism automatically shuts off the gas flow, helping protect downstream equipment, piping, and process systems.
The relieving function allows excess downstream pressure to be discharged through the regulator’s designated relief path when required by the regulator configuration, helping prevent pressure from exceeding the normal operating set point.
Key Features:
- Brand: BelGAS
- Model: P309
- Series: P300 Series
- Type: Relieving Gas Pressure Regulator
- Safety Function: Integrated Slam Shut
- Provides stable and accurate downstream pressure regulation
- Integrated automatic emergency shutoff function
- Protection against abnormal downstream pressure conditions
- Relieving design for downstream overpressure management
- Compact combination of pressure regulation and safety shutoff
- Suitable for industrial and gas distribution applications
Typical Applications:
- Natural gas distribution systems
- Industrial gas supply
- Fuel gas systems
- Gas pressure reduction stations
- Burner and combustion systems
- Oil & gas facilities
- Petrochemical and process industries
- Gas trains requiring integrated overpressure/underpressure protection
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