Explore our premium grade certified OEM detectors, controllers, and interlock units engineered by Chengdu Xinhaosi.
Ensuring absolute protection at the intersection of municipal utility grids and commercial/residential properties.
The global market for home gas valves and residential gas monitoring systems is undergoing a rapid evolution. Driven by strict regulatory mandates such as the European Standard EN 50194 (for combustible gas detection in domestic premises) and the American Standards UL 1484 / UL 2075, utility providers and municipal planners are transitioning from passive safety systems to active, automated hazard mitigation structures. Modern buildings require intelligent gas solenoid valves that communicate seamlessly with smart detectors and building management platforms.
Industrial-grade security measures are transitioning into domestic applications. Safety valves, typically used to control the flow of natural gas, liquefied petroleum gas (LPG), and synthetic gases, are no longer just basic mechanical shutoffs. Contemporary OEM home gas valve factories must configure valves to trigger automatically within milliseconds of a detected gas leak. As cities transition toward hydrogen-blended natural gas to reduce carbon footprints, the chemical compatibility, sealing reliability, and spark prevention of gas safety systems have become top-tier engineering mandates globally.
Meeting regional requirements including NPT/G-threads, different operating pressure classes (low pressure domestic vs. medium pressure commercial), and regional certifications like CE, SIL, and CPA.
Integrating mechanical spring-close mechanisms with low-voltage pulse solenoids. The system cuts off supply in less than 0.3 seconds upon receiving electric signals from control boxes or detectors.
Engineered to operate safely in volatile atmospheres. High-strength housing options resist spark propagation, complying with domestic and international safety standards.
Chengdu Factory & Office
Deyang Factory
Founded in 2003, Xinhaosi is one of the most influential and trusted brands in the global gas safety industry. Over the past two decades, we have steadily built a robust and comprehensive production and service system, which integrates 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 solutions, including oil & gas exploration and production, petrochemicals, urban gas distribution, automotive manufacturing, pharmaceuticals, new energy, steel production, and beverage processing.
Guided by the 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, and striving to build a safer world with sustainable gas safety technologies.
How Chengdu and Deyang facilities leverage cluster supply chains to optimize OEM deliverables.
Manufacturing home gas valves and commercial detection equipment requires cleanroom assembly lines, precision CNC machining, and automated pressure decay leak testing. Located in the industrial hubs of Sichuan (Chengdu and Deyang), Xinhaosi benefits from China's deeply integrated raw material supply chains. By sourcing copper alloys, electromagnetic coils, and high-durability seals locally, we maintain a resilient supply chain that reduces lead times for global OEMs.
Our manufacturing processes rely on digital integration. By linking automated CNC machinery with our Manufacturing Execution System (MES), we achieve traceability for every valve block machined. Quality inspection utilizes advanced optoelectronic sensors and helium mass spectrometry leak detectors, minimizing the risk of seal failures. Below is an overview of how we optimize the manufacturing lifecycle:
Production facilities are equipped with automated assembly robots, multi-axis machining centers, and custom-engineered pneumatic calibration systems that optimize throughput while keeping defect rates near zero.
Our in-house laboratories feature advanced testing equipment, including walk-in climate chambers, electromagnetic compatibility (EMC) testing setups, and specialized gas calibration apparatus.
Every single home gas valve component is laser-marked with a unique QR code tracking its casting batch, machining line, test logs, and the specific shift operators involved in its production.
Adhering to ISO9001 quality management system standards, Xinhaosi's core products have obtained a full range of authoritative certifications, including national compulsory Products Certification, explosion-proof certification, fire product certification, CPA measurement instrument type approval certificate, and international approvals as CE, SIL. Additionally, Xinhaosi holds honors such as "National Quality Integrity Benchmark Enterprise" , "National Quality Leading Enterprise in the Gas Alarm Industry," member of the China Fire Protection Association, and the main 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.
How Xinhaosi safety devices are configured to meet specific regional requirements.
In modern residential buildings, gas lines are protected by installing a household combustible gas detector (such as the JT-AT2005 or JT-AT2004B) directly connected to a brass solenoid valve. Upon detecting gas levels reaching 5% to 8% LEL, the detector triggers an internal alarm and sends a 12V pulse to close the main supply valve, preventing potential accumulation.
Multi-burner commercial kitchens require robust monitoring due to high operating pressures and temperature swings. We install a networked series of gas detectors connected to the JB-MK-AT2041/4G Interlock Control Box. This centralized panel monitors up to 4 zones, controls exhaust fans, and shuts off the main gas solenoid valve if a leak is detected.
Subsurface utility ducts and petrochemical pipelines require explosion-proof monitoring. The GT-AT0617 Series Underground Shaft Combustible Gas Monitoring Device combined with flame-proof detectors (e.g., the GTYQ-AT0505/d) provides continuous monitoring in hazardous locations, transmitting data via wireless protocols or wired RS485 systems.
Over two decades of dedication to industrial and residential gas safety solutions.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarm & fire fighting products.
● Started gas safety valve production.
● Expanding on OEM business.
● Moved to the office building in Longtan industrial park.
● 10 million pcs gas detector sales achieved.
● Moved into Chengdu factory building.
● Completed sales & service network across China.
● Launched the fire power monitoring system products.
● Self-developed IoT platform launched.
● Launched fire automatic alarm, emergency lighting, and evacuation systems.
● Obtained high-tech enterprise certificate.
● Qualified official supplier of China’s top 5 gas suppliers.
● Started Deyang factory construction.
● Established the Petrochemical & International business Division.
● Awarded the title of Sichuan Provincial Technology Center.
● Deyang factory construction completed and operation started.
● Launched urban gas pipeline network monitoring products.
● Launched wireless detection products.
● Launched AI safety valve products.
Essential criteria for technical procurement officers sourcing residential and commercial gas valves.
Selecting a reliable OEM partner for home gas valves requires a clear understanding of the mechanical, electrical, and materials standards that determine long-term reliability. Unlike standard fluid valves, gas safety valves must operate after extended periods of inactivity. The table below outlines key parameters used by our global clients:
| Requirement Metric | Standard Parameter Range | Xinhaosi OEM Capabilities |
|---|---|---|
| Working Mediums | Natural Gas (Methane), Liquefied Petroleum Gas (Propane/Butane), Town Gas | Full compatibility, custom seal selections (NBR/FKM) optimized for chemical resistance. |
| Closing Response Time | < 1.0 second | Ultra-fast mechanical spring action, triggering in < 0.3 seconds. |
| Explosion-Proof Rating | Ex d IIC T6 Gb / Ex mb IIC T6 Gb | Fully certified explosion-proof enclosures for hazardous industrial environments. |
| Valve Body Material | Brass, Aluminum Alloy, Cast Steel | High-tensile forged brass and corrosion-resistant anodized aluminum options. |
| Duty Cycle | 100% Continuous duty or Pulse triggered | Energy-efficient pulse closing mechanism requiring no continuous power to remain open. |
| In-house Calibration | ISO/IEC 17025 Certified Labs | CNAS accredited facility supplying traceable test reports for global compliance. |
Expert answers addressing certification, customization, delivery, and system integration questions.
Our manufacturing processes conform to ISO 9001 quality management systems. Our core products carry National Compulsory Product Certifications (3C), explosion-proof certifications, CE approvals, SIL ratings, and CPA measurement instrument type approvals. Additionally, our testing laboratory is accredited by CNAS, ensuring international test report acceptance under the ILAC-MRA framework.
Yes. As an OEM manufacturer, we offer standard connections including NPT (for North American markets), G-threads (BSPP), and Rc-threads (BSPT). We offer configurations matching standard low-pressure domestic lines (up to 10 kPa) as well as medium-pressure industrial and commercial gas lines.
Our solenoid valves are compatible with standard low-voltage DC pulse outputs (e.g., 9V-12V, 100ms pulse duration). We offer integrated smart terminals that connect these valves with Zigbee, Z-Wave, RS485, and LoRaWAN networks, allowing integration into modern building automation systems (BMS).
Our gas valves are designed to withstand at least 15,000 opening/closing operations. The valves are built to remain open for years without consuming power. We recommend performing a semi-annual manual trip check to verify mechanical performance, clean internal filters, and inspect the main rubber seals.
MOQs vary based on the level of customization. Standard configurations generally start at 500 units. Thanks to the raw material sourcing and automated manufacturing at our Chengdu and Deyang factories, typical production times range from 3 to 5 weeks from technical drawing approval to final testing.
Explore our additional range of wireless terminals, regulators, and high-durability interlock boxes.
