Select from our enterprise-grade combustible gas detectors and emergency shut-off valves, precision-engineered to safeguard commercial, industrial, and residential environments.
In industrial, commercial, and residential fuel gas infrastructures, detecting combustible gas leaks is only half the battle. A truly resilient gas safety system relies on an automated, fail-safe electro-mechanical mechanism capable of isolating gas flow at the main intake before hazardous concentrations reach the Lower Explosive Limit (LEL). Electromagnetic gas shut-off valves—commonly known as gas leak solenoid valves—serve as the primary physical line of defense.
As a direct manufacturer and global OEM supplier headquartered in Chengdu, Sichuan Shield Technology Co., Ltd. integrates decades of fluid control research and electronic sensor engineering into high-performance shut-off valves, such as our acclaimed JYFJS-011 Series. When linked to smart household gas detectors (e.g., SD6101, SD6200, SD6103K series) or industrial point-type gas detectors (e.g., SD2100A, SD2100E, SD2130), these valves execute positive mechanical isolation within milliseconds upon signal activation.
Instantaneous pulse-triggered electromagnetic closure halts dangerous gas flow immediately upon detecting natural gas (methane) or liquefied petroleum gas (LPG) anomalies.
Adhering to strict safety standards, valves remain locked in the shut-off state until human intervention resolves the leak and manually resets the pulling mechanism.
Engineered with high-grade NBR or Viton fluorine rubber seals inside precision-machined aluminum alloy housing, ensuring zero internal bypass leaking up to rated pressures.
Understanding the technical matrix of electromagnetic gas shut-off valves ensures optimal component matching for gas supply engineering, utility contracting, and distributor procurement.
| Parameter | JYFJS-011 Series (Aluminum Alloy) | Standard Commercial Brass Valves | Industrial High-Pressure Steel Valves |
|---|---|---|---|
| Target Gas Media | Natural Gas (Methane), LPG, Coal Gas | Natural Gas, Air, Inert Gas | Refinery Gases, Methane, Biogas |
| Valve Body Material | Die-Cast Corrosion-Resistant Aluminum Alloy | Forged HPb59-1 Brass | 316 Stainless Steel / Cast Steel |
| Closing Mechanism | Pulse Signal Drive & Magnetic Latching | Continuous Power Solenoid / Direct Drive | Pneumatic / Electric Actuator + Solenoid |
| Operating Voltage | DC 9V ~ 12V Pulse (Capacitor Discharge) | AC 220V or DC 24V Continuous | DC 24V / AC 220V Explosion-Proof |
| Closing Speed | < 1.0 Second | 1.5 – 3.0 Seconds | 1.0 – 2.0 Seconds |
| Max Operating Pressure | 10 kPa – 50 kPa (Low/Medium Pressure Grid) | 100 kPa | 1.6 MPa – 6.4 MPa |
| Reset Mode | Manual Pull-Up Latch Knob | Automatic / Manual Electric Reset | Manual / Auto Hydro-Pneumatic Reset |
| Ingress Protection | IP65 (Dustproof & Water Jet Resistant) | IP54 | IP67 Ex d IIC T6 Gb |
Leveraging Chengdu’s robust high-tech manufacturing ecosystem, Sichuan Shield Technology delivers unmatched quality control, factory-direct cost advantages, and flexible custom manufacturing for international buyers.
From aluminum alloy die-casting and precision CNC machining to electromagnetic coil winding and automated air-tightness testing, we control every step in-house.
Full support for custom operating voltages, pipe connection threads (G, NPT, RC), custom branding/laser etching, regional language packaging, and technical documentation.
100% of manufactured shut-off valves undergo multi-stage pneumatic tightness pressure testing, signal trigger response testing, and mechanical durability cycling before shipment.
Global gas safety importers, EPC (Engineering, Procurement, Construction) contractors, and municipal utility providers face stringent local regulatory hurdles and diverse environmental challenges. Sourcing gas leak solenoid valves requires adherence to internationally accepted safety standards, electrical compatibility, and long-term durability across contrasting climate zones.
Our products meet national China 3C certification standards, hold over 40 technical patents, and are designed in alignment with international standards like EN 161 (Automatic shut-off valves for gas burners and gas appliances) and ISO 23551. Test reports for export orders are verified by our technical engineering team prior to shipment.
Whether deployed in freezing sub-zero environments in Eastern Europe or humid tropical climates in Southeast Asia, Shield valves feature wide temperature operation ranges (-25°C to +60°C) and robust seal formulations (NBR/FKM) that resist chemical degradation and environmental hardening.
Installed directly at the main gas meter outlet, paired with Shield SD6101 or SD6200 household combustible gas detectors. Upon detecting methane leaks from cooktops or flexible hoses, the system immediately cuts gas flow and alerts occupants.
High-volume catering establishments rely on larger diameter shut-off valves linked to multiple ceiling-mounted point detectors and emergency stop buttons, meeting municipal fire code mandates.
Integrated with bus-type gas detectors (e.g., SD2100E) and central gas alarm controllers (SD8001 series). Offers multi-zone supervising control, automated linkage outputs, and emergency cut-off for factory gas distribution lines.
The safety valve sector is undergoing rapid modernization driven by IoT adoption, smart city initiatives, and the global energy transition toward green hydrogen blends. Future-ready gas leak shut-off valves are evolving in three key technological directions:
Next-generation valves incorporate status feedback sensors (open/closed magnetic switches) reporting to NB-IoT or LoRaWAN networks, allowing gas utility operators to monitor valve status remotely across thousands of deployment nodes.
As natural gas grids blend up to 20% Hydrogen (H2), solenoid valve elastomers and sealing structures are being engineered to prevent micro-leakage associated with smaller hydrogen molecules.
Advancements in magnetic retention permit instantaneous closure using minimal micro-joule pulse energy, making wireless battery-operated gas safety kits viable for multi-year maintenance-free operation.
Explore more factory-direct solutions from Sichuan Shield Technology Co., Ltd. for gas safety project deployments.
