Technical Specification

1.Standard:CJ/T 447-2014
2.Working Temperature:-10°C≤ t ≤ 40°C
3.Max Auto Self-Closing Pressure:8KPa±2KPa

4.Min Auto Self-Closing Pressure:0.8KPa±0.2KPa

5.Auto Closing Time: t≤3s

Gas automatic shut-off valve with built-in valve and pressure measurement hole

A gas automatic shut-off valve with built-in valve and pressure measurement hole is a safety device installed on indoor low-pressure gas pipelines, which integrates the basic functions of a gas automatic shut-off valve and can install a pressure measurement function. The Gas automatic shut-off valve has threaded connection, male/female, and the specification is 1/2'', which is easy to install.

There are two materials for customers to choose from: brass or aluminum alloy.

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Basic Functions For Safety Assurance

Automatic Shut-off Function

Similar to a standard gas automatic shut-off valve, it can automatically close and cut off the gas supply without electricity or external power when the gas pipeline experiences underpressure, overpressure, or abnormal gas flow.

Examples

During peak gas usage periods, if pipeline pressure drops or blockages (e.g., debris) cause abnormal pressure, the valve rapidly responds to shut off, preventing dangerous situations like backfire or flameout in stoves.
If the corrugated pipe or rubber hose connecting the gas supply ages and detaches, the valve immediately detects the leak and closes, avoiding large-scale gas leakage.

Manual Reset Function

After troubleshooting, the valve must be manually reopened to restore gas supply. This is typically done by pulling the outer ring or pressing a yellow button on the valve, allowing users to safely resume gas use after confirming the hazard is resolved.

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Pressure Measurement Function Hole For Monitoring

Real-Time Pressure Monitoring

The valve with pressure measurement hole can install a continuously device to monitor the gas pressure in the pipeline. Users can directly read the pressure value through connected devices such as pressure gauges or sensors, enabling timely detection of pressure fluctuations or abnormalities (e.g., excessively high or low pressure). This helps prevent safety incidents by allowing proactive measures to address pressure-related issues.

Assisted Fault Diagnosis

When gas equipment malfunctions (e.g., difficult ignition or insufficient combustion), the pressure measurement function helps users or maintenance personnel quickly determine if the issue is caused by gas pressure problems. For example, checking the pressure gauge on the valve can confirm whether low pipeline pressure is the root cause, enabling accurate problem-solving.

Structural Design For Enhanced Performance

Integrated Design
By combining the valve and pressure measurement device into a single body, the design reduces the number of components and assembly steps, resulting in a more compact structure. This not only saves installation space but also minimizes connection points, lowering the risk of leaks and improving overall sealing and safety.

Valve Body: Constructed from high-quality metals(brass or, Aluminum alloy) ensuring corrosion resistance and pressure tolerance to withstand long-term stable operation under pipeline pressure.

The gas automatic shut-off valve with built-in valve and pressure measurement integrates the safety protection of a shut-off valve with the monitoring capabilities of a pressure device, providing comprehensive safety assurance and convenient monitoring option for gas usage. It helps detect and resolve issues in the gas pipeline system promptly, reduces the risk of safety incidents such as gas leaks, and safeguards users' lives and property.