Explore our industrial safety-critical equipment, including low voltage controls, controllers, and transmitters.
Robust multi-channel centralized controller for industrial installations.
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Highly sensitive household methane & propane gas warning system.
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ATEX-ready industrial detector for harsh, hazardous plant zones.
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Reliable power supply station designed for gas system continuity.
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Stable wall-mounted natural gas alarm for smart home deployments.
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High-precision optical-acoustic compatible gas alert transmitter.
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Microprocessor-controlled system panel with dynamic Modbus outputs.
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Real-time LoRaWAN/NB-IoT pressure tracking for urban mainlines.
Explore DetailsIndustrial and residential gas networks carry potential hazards that require instantaneous, automated shut-off mechanisms. A 4 Gas Solenoid Valve is designed specifically to handle various gaseous media configurations—typically operating across Methane (Natural Gas), Liquified Petroleum Gas (LPG), Coal Gas, and Carbon Monoxide/Hydrogen gas blends.
These electromechanical valves convert electric signals into instantaneous kinetic action. Operating under a default normally open (or normally closed) state, they interface directly with gas safety controllers. Once a gas detector registers concentration thresholds exceeding critical LEL (Lower Explosive Limit) boundaries, the system outputs an electrical pulse (typically 9V-24V DC), driving the electromagnetic solenoid to trigger a mechanical spring-loaded closure in under 1 second.
As a global leader, Xinhaosi leverages state-of-the-art pilot-operated and direct-acting mechanisms to ensure zero-leakage, high-performance operation over thousands of cycles.
A comprehensive overview of what makes our OEM manufacturing processes and gas safety valves globally trusted.
Utilizing high-insulation class (Class H) copper windings, our solenoids endure elevated ambient temperatures and continuous electrical states without risking thermal degradation or electrical short-circuits.
Engineered to prioritize human safety. When the valve cuts off gas supply, it locks in place. Re-opening requires manual mechanical reset, preventing accidental gas flow after leakage resolutions.
Certified enclosure types designed to isolate spark ignition risks. Suitable for Ex d IIC T6 Gb explosive atmospheres common in chemical processing, paint booths, and industrial storage fields.
Precision calibration for Natural Gas (Methane), Liquefied Petroleum Gas (LPG, Propane/Butane mixtures), Manufactured Gas, and volatile organic gaseous phases, assuring broad application profiles.
Providing direct engineering parameters for procurement managers, mechanical specifiers, and EPC contractors.
| Parameter | Specification Details | Standards Compliance |
|---|---|---|
| Compatible Media | Methane (NG), Propane/Butane (LPG), Hydrogen blends, Town Gas | ISO 6976 compliant gas profiling |
| Nominal Diameter (DN) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 | GB/T 12221, EN 558 face-to-face sizes |
| Body Material | Forged Brass, Cast Aluminum Alloy, Heavy-Duty Stainless Steel (304/316) | ASTM / EN material certifications |
| Operating Voltage | DC 9V - 12V (Pulse drive), DC 24V (Continuous option) | Low Voltage Directive (LVD) 2014/35/EU |
| Closing Speed | < 0.5 Seconds to completely isolate media flow | EN 161 Automatic Shut-Off Valve standards |
| Seal Element | NBR (Nitrile Butadiene Rubber) / Viton (FKM) for aggressive media | ISO 3601 elastomer quality criteria |
| Max Operating Pressure | 10 kPa (standard low pressure), up to 0.6 MPa (medium pressure series) | ANSI / ASME Class ratings equivalent |
Operating out of China’s leading industrial manufacturing hubs, our production facility combines cost-efficiency, advanced vertical integration, and extensive custom OEM/ODM services. China’s comprehensive industrial ecosystem permits us to source premium materials—like high-grade brass bars and high-performance NBR gaskets—with absolute traceability.
By deploying automated CNC machining centers, robotized winding lines, and custom computerized pressure-testing chambers, we produce over 2,000,000 gas solenoid valves annually. Global clients gain shorter lead times, customized branding (OEM tags), tailored wiring harnesses, and highly optimized bulk freight agreements, ensuring competitive margins for distributors and system integrators.
Gas safety leaves no room for error. International markets maintain strict mechanical and safety codes. We work alongside globally recognized testing houses (TUV, SGS) to ensure products meet certifications like **ATEX** (for European explosion-proof environments), **CE** marking, and **SIL (Safety Integrity Level) ratings**.
Our dedicated technical engineering department offers customized compliance documentation packages. This includes 3D CAD modeling support for system integration, flow coefficient (Kv/Cv) calculations, electrical coil response diagrams, and materials certificate declarations (EN 10204 3.1). We also offer localization support for labels, installation manuals in multiple languages, and localized voltage tuning.
Empowered by technology, full-chain integration, and comprehensive monitoring systems.
Founded in 2003, Xinhaosi has risen to become one of the gas safety industry's most influential manufacturer brands. We utilize advanced electronic detection technology to make unknown gas leak risks clear, visible, and manageable.
We supply customer-focused hardware and services to secure chemical plants, municipal gas lines, commercial kitchens, and residential projects worldwide. Powered by cutting-edge testing and production facilities, we deliver advanced, intuitive, and precise gas safety solutions for a safer future.
How technological advances and changing energy landscapes shape the next generation of flow control components.
Traditional solenoid valves act purely on local electrical cues. Modern systems demand smart feedback loops. Integrated micro-switches feed valve status (open/closed) directly to SCADA systems, PLC networks, and cloud telemetry, allowing pipeline operators to run predictive health diagnoses remotely.
As the energy sector moves toward decarbonization, standard natural gas grids are beginning to blend Hydrogen (H2). Hydrogen’s molecular structure is significantly smaller and highly volatile. Future solenoid valves require upgraded sealing technology, like specialized fluoroelastomers, and certified leak rates to ensure safe hydrogen containment.
To reduce power consumption, modern controllers deploy capacitive discharge ignition circuits. They require only a quick, low-voltage millisecond electrical pulse to trigger emergency valve closure. This matches perfectly with solar-powered RTUs and battery-operated field instruments.
Working alongside top global buyers, distributors, and engineering contractors.
Stay tuned for the latest industrial safety updates from Xinhaosi & the industry.
Featuring dual-technology fusion, ultra-fast response, and long-distance non-contact detection to enhance safety in petrochemical, refrigeration, and commercial gas settings.
Connecting with international buyers, EPC contractors, and global distribution chains in Chengdu to expand international footprints for industrial gas safety valves.
Strengthening industrial ties and supply contracts for safety detectors and mechanical valves across rapid development sectors in Southeast Asia.
Find answers to highly technical queries from engineering, design, and procurement professionals.
Normally Open (NO) valves remain open until an electrical pulse/current triggers closure, locking mechanically. These are standard in safety shut-off loops to prevent closure during power loss unless a hazard is confirmed. Normally Closed (NC) valves require continuous current to remain open; they shut automatically when power is cut, functioning as instant fail-safes.
Natural Gas (Methane) is lighter than air, while LPG (Propane/Butane) is heavier. Our internal mechanical structures feature flow path optimizations to prevent condensation or heavy hydrocarbon accumulation. Additionally, the seal materials (such as NBR or FKM) are chemically compatible with all four major gases.
Yes, our factory provides fully customized solenoid windings. We supply coils configured for DC 9V-12V (common for battery-powered household controller outputs), DC 24V (industrial standard PLC outputs), and AC 110V/220V for direct utility grid connection.
Our valves cover standard low-pressure distribution systems (up to 10-20 kPa for residential/commercial kitchens) and medium-pressure environments (up to 0.6 MPa/6 bar for industrial supply pipelines). Each model is hydrostatically tested to 1.5 times its maximum rated pressure.
When a leak occurs, the detector signals the valve to shut. If the leak stops or the sensor resets, a standard auto-open valve could let gas back into a compromised room. The manual-reset feature requires a human operator to physically pull the reset pin, ensuring someone inspects the area before gas flow resumes.
We supply explosion-proof configurations that carry Ex-d certifications compliant with ATEX/IECEx standards. These are specifically built to withstand internal gas ignition without allowing flames to escape into the surrounding ambient explosive atmosphere.
A continuation of our comprehensive catalog of safety systems and gas controllers.
Industrial duty safety-stop valve with instantaneous electromagnetic close.
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Multi-spectrum optical flame sensor for immediate fire hazard alarm.
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Reliable safety monitoring solution with digital logic processing.
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Bus-topology addressable alarm transmitter for residential complexes.
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Classic design, high-stability catalytic combustion sensor alarm.
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Heavy industrial grade toxic & explosive gas sensor transmitter.
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Explosion-proof design for heavy chemical gas plant installations.
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Centralized interlock station driving multiple shutdown valves.
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