Product Description：

Our pipeline gas automatic shut-off valve serves as a safety emergency cut-off device for gas pipelines. It will automatically close the gas supply pipeline in cases of pipe rupture, maintenance work, gas supply suspension and restoration, accidental gas cut-off, excessively low or high gas pressure, and pressure rise caused by regulator box faults. This product features excellent sealing performance, zero power consumption, high sensitivity, reliable operation, compact size and easy installation. The valve can only be opened manually, which complies with safety management regulations and accident handling requirements.

Product Features：

※ Applicable Gases: Natural gas, LPG, manufactured gas and other non-corrosive gases

※ Valve Closing Mode: Automatic

※ Valve Opening Mode: Manual operation

※ Installation Position: In front of gas burning appliances (gas cooker)

※ Connection Type: Inlet: G1/2" thread; Outlet: 9.5 hose connector or 1/2" thread

※ Shut-off Time: ＜ 3 s

※ Nominal Diameter: DN15

※ Rated Flow: 0.6 m³/h, 0.9 m³/h (refer to nameplate for details)

※ Rated Inlet Pressure: 2.0 kPa※ Maximum Inlet Pressure: ≤ 40 kPa

※ Low-pressure Automatic Shut-off Pressure: 0.8±0.2 kPa※ Over-pressure Automatic Shut-off Pressure: 8±2 kPa

※ Over-flow Automatic Shut-off: 0.9 m³/h, 1.2 m³/h (refer to nameplate for details)

※ Hose Disconnection Protection: Automatically shut off within 2 s when the hose (length ≤ 2 m) detaches

※ Over-pressure Re-opening Prevention: No automatic re-opening when inlet pressure ≥ 6 kPa after valve closure

※ Ambient Operating Temperature: -10°C ~ 40°C

※ Applicable Standards: CJ/T 447-2014

※ Valve Body Material: Aluminum alloy

※ Seal Material: Nitrile rubber (NBR)