Engineered to adapt to complex working environments and strict global safety requirements
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.
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.
Understanding the engineering integrity, fluid dynamics, and critical safety parameters required for industrial and municipal infrastructure
Utilizing high-tensile brass or cast iron bodies integrated with Viton or NBR elastomer elements. Standardized to 3/4 inch NPT/BSP thread interfaces, ensuring hermetic performance up to 500 kPa working pressure. Built with dual-sealing lips to isolate gas paths during emergency trips.
Equipped with an electromagnetic trigger mechanism. The automatic coil acts in < 1 second upon receiving an electrical impulse (12-24V DC / 220V AC). A manual reset feature ensures that the line cannot be pressurized accidentally without physical confirmation, fulfilling SIL-2 safety metrics.
Internal geometry designed to limit pressure drop. The valve achieves a high flow coefficient (Cv factor) that minimizes flow restriction and energy consumption across commercial and residential distribution frameworks, conforming to ANSI Z21.21 standards.
Modern natural gas infrastructure requires valves that can operate effectively under low-pressure conditions without compromising seal integrity. The 3/4" Natural Gas Shut Off Valve from Xinhaosi utilizes a state-of-the-art pilot-operated or direct-acting mechanism depending on the targeted system layout. By utilizing advanced finite element analysis (FEA), our engineering team has optimized the spring constants within the valve to ensure reliable release, even when pressure levels fluctuate near minimal operation targets.
Additionally, our proprietary anti-corrosive electroplating processes prevent the oxidation of moving brass elements when exposed to sulfur compounds naturally present in commercial natural gas supplies. This prolongs the standard operational lifecycle beyond 100,000 cycles, guaranteeing decades of passive security in both indoor and outdoor environments.
Why global enterprise procurement chooses Xinhaosi for industrial and residential gas safety components
From the raw brass casting stage to CNC machining, multi-layer surface treatment, and electromagnetic coil winding, all processes are executed within our dedicated Deyang and Chengdu production zones. This internal oversight minimizes procurement delays and eliminates external markup costs.
Every valve undergoes 100% pneumatic sealing tests and coil resistance checks. Our automated assembly line incorporates vision control systems to immediately isolate elements containing micro-defects. This helps maintain a field failure rate of less than 0.05%.
We support diverse transport terms (FOB, CIF, DDP) and maintain close partnerships with major shipping lanes. Customized packaging options conform to international freight standards, preventing transit damage and ensuring clean delivery at your destination.
Configured to meet the strict legal and spatial demands of key global markets
Operating globally requires deep understanding of localized testing codes. Our 3/4" Natural Gas Shut Off Valves are engineered to facilitate compliance with local directives such as EN 161 (European Gas Valve Standard) and NFPA 54 (National Fuel Gas Code in the USA). Our technicians provide dedicated compliance documentation to help clients clear regional safety audits quickly.
We offer pre-calibrated linkages that easily interface with existing smart home and building management systems (BMS) through Modbus, Zigbee, or standard analog output. This eliminates integration issues for localized HVAC, fire safety, and pipeline monitoring networks.
Keeping procurement strategies aligned with safety technology developments
Enterprise procurement teams face pressure to balance raw material quality with supply chain resilience. Xinhaosi addresses this through flexible OEM/ODM contracts, allowing customized branding, thread types, and operational voltages (e.g., Ex-d explosion-proof solenoids for chemical processing environments).
By establishing long-term copper and steel contracts, we shield clients from metal price volatility, keeping costs predictable. Our CNAS-accredited testing facility issues complete trace certifications for every batch, reducing inspection steps at destination warehouses.
The gas safety sector is transitioning from reactive systems to proactive IoT monitoring. The inclusion of wireless pressure and flow sensing directly inside safety valves allows systems to flag pressure drops and micro-leaks before they trigger alarms.
Xinhaosi is leading this shift by developing integrated AI safety valves and wireless detection nodes. These devices feed performance data back to cloud-based monitoring suites, allowing operators to plan preventative maintenance and reduce unexpected system downtime by up to 30%.
Over two decades of dedication to quality safety manufacturing and innovation
Technical guidance and installation recommendations from Xinhaosi engineering specialists
Explore our advanced gas control boxes, detectors, and AI-enabled industrial safety valves
