Explore our elite range of explosion-proof devices, safety interlocks, and emergency automatic shut-off systems engineered for zero-failure operations.
Founded in 2003, Xinhaosi has risen to become one of the most influential and trusted brands in the global gas safety and control valve industry. We provide specialized, customer-centric products and integrated services to safeguard industrial plants, urban utilities, commercial projects, and homes worldwide.
By fusing advanced electronic detection technology with robust mechanical engineering, we make invisible gas leak hazards clear, visible, and automatically manageable. Powered by state-of-the-art production lines, meticulous testing systems, and a commitment to SIL3 and ATEX certifications, we deliver advanced, precise gas safety solutions for a safer future.
We leverage advanced electronic detection technology to make unknown gas leak risks clear and visible. Our state-of-the-art production facilities design gas solenoid valves that feature zero-leakage, explosion-proof housings, and ultra-fast reaction times.
By integrating intelligent interlocking control boxes with automated gas detectors, we enable chemical plants, urban heating networks, and residential systems to automatically cut off the gas supply within milliseconds of a detected hazard.
Safe Operating & Detection Security
Addressing key engineering requirements, supply chain risk management, and structural criteria for industrial buyers.
Sourcing solenoid valves requires strict media compatibility testing. High-grade anodized aluminum alloys, brass, and cast steel housings prevent gas-induced corrosion. Specialized NBR or FKM sealing rings guarantee high leak tightness, preventing fugitive methane emissions in gas networks.
For chemical, industrial, and mining environments, solenoid valves must be ATEX, IECEx, or Ex-proof certified. Cast iron or aluminum explosion-proof junction boxes enclose the coil, eliminating electrical sparks that could ignite surrounding combustible gas mixtures.
Valves are engineered with normally-open (NO) auto-shutoff and manual-reset functions. In an emergency, an electrical pulse triggers the shut-off, and the valve remains locked. It cannot be reopened until safety personnel physically verify the site and reset it.
| Specification Parameter | Industrial Grade (Normally Open/Closed) | Commercial/Utility Grade | Explosion-Proof/Hazardous Area Grade |
|---|---|---|---|
| Nominal Diameter (DN) | DN15 - DN300+ Flanged Options | DN15 - DN50 Threaded | DN20 - DN200 Flanged/Threaded |
| Operating Pressure Range | 0 - 6 Bar (High Pressure Custom up to 20 Bar) | 0 - 500 mbar (Low Pressure) | 0 - 10 Bar (Medium-High Pressure) |
| Response Time | < 0.3 Seconds (Instant Cut-off) | < 1.0 Second | < 0.5 Seconds |
| Explosion-Proof Rating | Ex d IIC T6 Gb (Optional) | Non-Ex (Standard IP65 Protection) | Ex d IIC T6 Gb / Class I Div 1 |
| Material Construction | Stainless Steel 304/316, Cast Steel | Brass, Extruded Aluminum Alloy | Cast Aluminum Alloy, Stainless Steel |
A gas safety system is only as strong as its weakest link. We specialize in complete, closed-loop gas security systems where detection, decision-making, and physical shut-off work in harmony.
When our explosion-proof or residential gas detectors register concentrations above a set threshold, they instantly relay signals to an interlock control box. The control box sounds alarms, starts ventilation systems, and sends an electrical pulse to the natural gas solenoid valve, stopping the gas flow at the main pipeline before it can enter the building or industrial bay.
More About SolutionsPioneering smart valves, hydrogen compatibility, and IoT-enabled predictive diagnostic diagnostics.
Modern gas networks integrate smart solenoid valves equipped with pressure sensors, temperature sensors, and communication protocols (Modbus, LoRaWAN, NB-IoT). These monitor performance metrics in real time and warn operators of potential mechanical failures or solenoid coil degradation before they happen.
As global energy transitions toward green hydrogen and hydrogen-blended natural gas, modern pipeline valves must prevent hydrogen embrittlement. We are developing specialized elastomer materials and internal geometries to handle hydrogen blends up to 20% and pure hydrogen pipelines safely.
Normally-closed solenoid valves require continuous electrical power to stay open, which can generate heat and consume significant energy. Our low-power, dual-coil designs switch to a minimal holding current after activation, extending coil life and lowering operational energy costs.
Collaborating with global energy operators, municipal water and gas suppliers, and chemical developers.
Stay informed with the latest technological developments, exhibition showcases, and safe gas management products.
Xinhaosi Electronic Detection Technology Co., Ltd. officially launched its new Handheld Uncooled Infrared Gas Leak Detector, featuring dual-technology fusion, ultra-fast response, and long-distance non-contact detection to enhance safety and efficiency in petrochemical, refrigeration, and industrial scenarios.
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XINHAOSI recently participated in the 5th Western China Cross-Border E-Commerce Expo held in Chengdu. The event brought together cross-border e-commerce platforms, global buyers, manufacturers, and supply chain companies, creating new opportunities for international trade.
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XINHAOSI recently participated in the 2026 Sichuan (Chengdu) – Indonesia Industry Matchmaking Conference. The event gathered enterprises and industry representatives from China and Indonesia to strengthen industrial cooperation and explore new business opportunities in Southeast Asia.
Read Article →Answers to technical and configuration questions asked by safety inspectors, system integrators, and procurement teams.
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