Explore our elite range of explosion-proof gas sensors, automated shutoff solenoid valves, and safety monitors.
Unlocking Safety, High Precision, and Process Reliability through Advanced Solenoid Engineering
Within the highly regulated domains of gas distribution, petrochemical processing, and urban gas grids, the integrity of a natural gas control valve is the thin line between system efficiency and catastrophic failure. As a leading OEM natural gas control valve manufacturer, we specialize in addressing the rigorous technical challenges inherent in managing volatile hydrocarbons. Our solutions are engineered to counter high pressures, corrosive environments, and fluctuating temperatures.
Contemporary industrial operations demand integrated safety control systems. Modern solenoid valves are no longer isolated mechanical links; they act as critical end-elements in automated safety loops (SIS). Achieving high safety integrity levels (such as SIL 2 and SIL 3 compliance) requires uncompromising precision during the manufacturing process, advanced diagnostic sensors, and robust material selection. Our products are engineered with safety margins that far exceed conventional regulatory minimums, ensuring continuous process reliability under the most demanding conditions.
We provide vertical integration services for global OEMs, offering custom-engineered solutions that meet distinct local grid configurations, chemical signatures, and environmental constraints. From explosion-proof housing certifications like ATEX and IECEx to compliance with ISO/IEC 17025 laboratory standards, our manufacturing processes are optimized to produce robust, reliable, and highly efficient control systems.
Founded in 2003, Xinhaosi has established itself as one of the most influential and trusted brands in the global gas safety industry. Over the past two decades, we have built a robust and comprehensive production and service system, integrating cutting-edge R&D, intelligent manufacturing with advanced automation equipment, digital marketing across global channels, professional after-sales support with an experienced technician team, flexible OEM/ODM services, as well as CNAS-Accredited laboratory calibration services that meet international standards.
Our diversified product portfolio covers industrial & residential gas detection & alarm systems, industrial & household gas solenoid valves, and urban gas pipeline network monitoring systems—all engineered to adapt to complex working environments and strict safety requirements. We produce and sell tens of millions of units annually, catering to a wide range of industries that demand reliable gas detection and flow management solutions. These include oil & gas exploration and production, petrochemicals, urban gas distribution, automotive manufacturing, pharmaceuticals, new energy, steel production, and beverage processing.
Guided by our core mission of "Making Gas Safety Accessible Everywhere," we consistently deliver high-performance, reliable products and customized solutions tailored to each client's unique needs. Every item we manufacture undergoes rigorous quality control tests, and every service we provide is backed by our professional technical team, fully embodying our unwavering commitment to safeguarding gas safety across both industrial workplaces and residential environments.
Why global enterprises trust our Chengdu and Deyang facilities for precision engineering
Located in the industrial heart of Sichuan, we benefit from local access to high-quality raw materials (such as specialized alloys and polymers) and advanced tooling facilities, enabling swift prototyping and scaling.
Our Deyang facility utilizes high-precision CNC machining centers and automated assembly loops. This minimizes tolerances and maintains zero-defect consistency across massive production runs.
Our in-house testing lab features accredited diagnostic setups for pneumatic, thermodynamic, and mechanical testing, ensuring every valve aligns with global specifications before export.
Adhering strictly to ISO9001 quality management system standards, Xinhaosi's core products have obtained a full range of authoritative certifications. These include national compulsory Products Certification (CCC), explosion-proof certification, fire product certification, CPA measurement instrument type approval certificate, and international approvals such as CE and SIL. Additionally, Xinhaosi holds honors such as "National Quality Integrity Benchmark Enterprise", "National Quality Leading Enterprise in the Gas Alarm Industry," membership in the China Fire Protection Association, and serves as a major drafting organization for the national standard of solenoid valves, further confirming its industry influence and reputation.
In the field of intellectual property, Xinhaosi has built a robust innovation system with over 50 patents and software copyrights. These patents cover core technological areas, including a graphical monitoring system for gas detection and alarm, which enables predictive maintenance based on historical data to reduce equipment failure rates by over 30%, and a solenoid valve with flow monitoring functionality that integrates flow detection and alarm capabilities. The company also pioneered China's first networked bus-type gas leakage monitoring system and the only maximum-point gas leakage monitoring system certified by the Ministry of Public Security, demonstrating its leading position in cutting-edge technological research.
Our in-house laboratory is accredited by the China National Accreditation Service for Conformity Assessment (CNAS), recognized both domestically and internationally under the ILAC-MRA framework. It operates in accordance with ISO/IEC 17025, the international standard for testing and calibration laboratories. It provides reliable and traceable testing services for gas detection and alarm products, solenoid valves, and related safety equipment. Test reports issued by the CNAS-accredited laboratory are widely accepted by regulatory authorities, certification bodies, and customers in China and overseas, helping to ensure product quality, safety compliance, and market access.
Technical parameters designed to meet global engineering standards and regulatory compliances
Purchasing agents and piping engineers must match valve specifications to local flow rates, chemical compositions, and pressure parameters. The matrix below displays the typical configuration boundaries for our OEM gas control valve lines.
| Feature / Parameter | Industrial Class Series | Commercial & Residential Class | Standards Compliance |
|---|---|---|---|
| Nominal Diameter (DN) | DN15 to DN300+ (Flanged / Threaded) | DN15 to DN25 (Threaded) | GB/T 12221, ASME B16.10 |
| Body Materials | Cast Steel, Stainless Steel (304/316), Cast Iron | Brass, Extruded Aluminum Alloy | ASTM A216, ASTM A351, EN 10213 |
| Max Operating Pressure | 0.5 bar to 40 bar (High-Pressure Custom) | 0.5 bar to 2 bar (Low-Pressure) | Piping Class 150/300, PN16/25/40 |
| Explosion Protection | Ex d IIC T6 Gb / ATEX Zone 1 & 2 | Ex mb II T4 / Flame Retardant IP65 | IEC 60079-0/1, EN 60079 |
| Response Shut-off Time | < 0.5 Seconds (Fast acting solenoid) | < 1.0 Seconds (Manual / Auto reset) | EN 161 Class A / EN 16678 |
| Sealing Material | Viton, FKM, NBR (Aromatic resistant) | NBR, HNBR (High durability) | ISO 3601, ASTM D1418 |
Over two decades of engineering milestones, tech innovations, and infrastructure scaling
Tailoring high-performance valves for complex industrial environments and smart city infrastructures
Metropolitan networks require valves that can endure outdoor elements, pressure surges, and continuous cycles. Our automated solenoid valves integrate with RTU telemetry, allowing municipal operators to instantly isolate pipelines during earthquakes or pressure anomalies, minimizing downstream hazards.
Refining environments are characterized by corrosive gases, high temperatures, and explosive zones. Our Class I Div 1 and ATEX Zone 1 certified valves utilize robust 316 stainless steel housings and Viton-FKM seals to deliver chemical compatibility and long-term durability.
Furnaces and coking ovens require massive fuel gas inputs controlled by high-capacity gas valves. Our valves provide immediate bubble-tight shutoff in hazardous areas, protecting personnel from toxic carbon monoxide and combustible gas buildups.
For residential complexes, hotels, and schools, we design lightweight, battery-operated, wireless solenoid shutoff valves. Connected to local kitchen gas detectors, these valves automatically shut off the gas supply at the source when a leak is detected, operating independently of the main power grid.
Technical insights and considerations from our valve engineering department
Our design process undergoes strict Failure Modes, Effects, and Diagnostic Analysis (FMEDA). Component-level safety evaluations ensure that dangerous undetected failures are kept below the threshold required for SIL-2 or SIL-3 certification. This is verified by third-party testing.
For natural gas containing hydrogen sulfide (sour gas) or moisture, we recommend choosing CF8M or stainless steel 316 body materials compliant with NACE MR0175/ISO 15156. This prevents sulfide stress cracking and corrosion. We also use specialized fluorocarbon (FKM) seals.
Yes, our standard industrial line is rated for temperatures ranging from -40°C to +80°C. For sub-zero operations, we utilize specialized low-temperature carbon steel (LCC) and custom fluorosilicone seals to maintain flexibility and seal integrity.
Single coil designs utilize spring force to return to the safe position, offering high reliability in fail-safe conditions (normally open/closed). Double-acting configurations require electrical signals for both opening and closing, reducing the risk of accidental shutoff from minor power fluctuations.
Our ISO/IEC 17025 laboratory conducts helium-mass-spectrometry leak testing, hydro-testing, pneumatic endurance cycles, coil insulation tests, and environmental chamber cycling to simulate extreme operating conditions.
Yes, our OEM/ODM service adapts the valve body connections to match local piping standards, including ANSI/ASME flanged, DIN EN flanged, NPT threaded, and BSPT threaded ends.
Safety instrumentation and control devices engineered for complex systems
Partner with China's leading drafting organization for gas solenoid valve standards. Get customized OEM/ODM design proposals and CNAS laboratory certified reports.
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