Coliter ® Gas Emergency Cut-Off Solenoid Valve, DC 9–12V Pulse, <1s Shut-Off
DC301 Gas Emergency Cut-Off Solenoid Valve – Automatic Shut-Off for Gas Safety Systems
The Coliter® DC301 Gas Emergency Cut-Off Solenoid Valve is an automatic safety valve designed to instantly interrupt the gas supply in the event of a leak detected by a compatible gas alarm (such as the AQ901). It operates via a DC pulse signal (9–12V) and shuts off within less than 1 second, providing rapid protection against fire, explosion, or poisoning risks. Suitable for non-corrosive gases including natural gas, LPG, and manufactured gas, it supports working pressures up to 100 kPa. The valve features a brass or aluminum alloy body, manual reset functionality, and standard pipe thread connections (G1/2", G3/4", G1"). With a drive current ≤1.5A (pulse) and lead wire length ≥0.4m, it integrates seamlessly into residential and commercial gas safety alarm cut-off systems.
Installation diagram
Product Description
Technical Specifications
Applicable Gas: Non-corrosive gases such as Natural Gas, LPG, and Manufactured Gas.
Working Pressure: 0～100KPa
Body Material: Copper Alloy, Aluminum Alloy
Shut-Off Method: DC Pulse Drive / Manual Operation
Opening Method: Manual Reset
Connection Type: G1/2, G3/4, G1 Pipe Threads
Shut-Off Time: < 1s
Drive Voltage: DC 9V～12V (Pulse)
Drive Current: ≤ 1.5A (Pulse)
Lead Wire Length: ≥ 0.4m
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Faq - Frequent questions
Introduction to Gas Safety Alarm Cut-Off System
Coliter®’s Gas Safety Alarm Cut-Off System provides automatic, fail-safe protection against gas leaks in residential and commercial settings. The system integrates the AQ901 combustible gas detector with the DC301 emergency shut-off solenoid valve—triggering an audible alarm and instantly cutting off the gas supply within seconds of detecting methane, propane, or natural gas. The DC301 valve features a brass body, 24V/220V options, and manual reset, while the AQ901 offers high-sensitivity semiconductor sensing and wall-mount installation near potential leak sources (e.g., stoves, boilers). Certified to national gas safety standards, this plug-and-play system prevents fire, explosion, and poisoning risks—ideal for kitchens, boiler rooms, and rental properties requiring code-compliant gas safety.
