SelfClosing Gas Valve Factory Reliable Low Pressure Safety Valve Suppliers in China
The Self-Closing Valve is a high-precision safety device engineered for low-pressure gas pipeline systems. Designed to provide an essential layer of protection in residential and commercial environments, this valve automatically shuts off the gas supply during under-pressure, overpressure, or total loss of pressure conditions. Its autonomous operation ensures that gas flow is interrupted immediately without the need for electricity or external power sources, making it a reliable fail-safe for gas meter connections.
Utilizing a sophisticated multi-pole permanent magnet linkage mechanism, the valve continuously monitors gas pressure parameters. When these parameters deviate from the safety set values, the valve triggers an automatic closure to prevent hazardous leaks or accidents. This combination of automatic protection and manual reset capability ensures maximum operational safety and resource conservation in various non-corrosive gas applications.
Detailed Parameters
| Connection Size | G1/2" Thread | Nominal Diameter | DN15 (15mm) |
|---|---|---|---|
| Total Length (L) | 116mm | Total Height (H) | 64mm |
| Applicable Media | Natural Gas, Coal Gas, LPG | Gas Properties | Non-corrosive |
| Actuation Method | Permanent Magnet Linkage | Power Requirement | None (Electricity-free) |
| Operation Mode | Auto-Close / Manual Reset | Safety Function | Under/Overpressure Protection |
Key Advantages
Passive Safety
Operates entirely without electricity or external power, ensuring a fail-safe shutdown even during power outages.
Rapid Response
Instantly detects pressure abnormalities and closes the valve to prevent leakage and potential explosions.
High Reliability
Engineered for long-term stability with no malfunction, providing consistent protection for gas pipelines.
Clear Status
Provides visible working status, making it easy for operators to identify if the valve has triggered.
Easy Maintenance
Simplified design allows for easy installation, straightforward troubleshooting, and quick manual reset.
Versatile Application
Compatible with various non-corrosive gases including Natural Gas, Coal Gas, and Liquefied Petroleum Gas.
Product Gallery
Management Platforms
Control System
Integration with advanced gas control systems for centralized pressure monitoring.
Integrated Devices
Seamless compatibility with integrated device series for optimized pipeline flow.
Safety Monitoring
Continuous safety device surveillance to ensure zero leakage in critical zones.
Peak Shaving
Supports point supply and peak shaving equipment to stabilize gas distribution.
Vessel Management
Optimized for use in conjunction with industrial vessel series and storage units.
Voltage Regulation
Independent of voltage regulators, ensuring safety regardless of electrical state.
Investment Return Comparison
| Feature | Manual Valves | Self-Closing Valves |
|---|---|---|
| Response Time | Dependent on Human | Instantaneous / Automatic |
| Operational Cost | Higher Labor Cost | Low (Passive System) |
| Safety Level | Moderate (Risk of Error) | High (Fail-Safe) |
| Power Dependence | None | None |
| Resource Waste | High (Potential Leaks) | Minimal (Auto-Shutoff) |
Frequently Asked Questions
Q: What is the main difference between a quick closing valve and a self-closing valve?
Quick closing valves are primarily for rapid emergency shutdowns and often require an external trigger. Self-closing valves focus on automatic closure after normal operation or based on pressure changes for convenience and resource conservation.
Q: Does the self-closing valve require electricity to operate?
No, the self-closing valve operates without the aid of electricity or any external power, utilizing a permanent magnet linkage mechanism to trigger closure.
Q: Which gases are compatible with this valve?
It is suitable for various non-corrosive gases, including natural gas, coal gas, and liquefied petroleum gas (LPG).
Q: How do I reset the valve after it has automatically closed?
The valve is designed with a manual reset function, allowing operators to restore gas flow once the pressure issue has been resolved.
Q: What triggers the automatic shutoff mechanism?
The valve triggers when it detects under-pressure, overpressure, or a complete loss of pressure (such as a rubber pipe falling off) in the pipeline.
Q: Is this valve suitable for high-pressure industrial systems?
This specific model is designed for low-pressure gapipeline systems, typically installed between the gas meter and the rubber pipe end.
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