Explore our foundational line of combustible gas alarms, control units, and flame detectors direct from our CNAS-accredited factory.
Mitigating Risks with High-Performance Gas Safety Systems, Digitalized Operations, and Reliable Manufacturing Supply Chains.
In modern chemical processing, energy production, and residential utility infrastructures, detecting leaks of flammable vapors is the single most critical preventive safety step. A Combustible Gas Alarm Factory must offer more than simple component manufacturing; they must deliver life-saving equipment designed to operate flawlessly for decades in highly corrosive, high-vibration, and hazard-prone environments.
Gas detection architectures are shifting rapidly from standalone local alerts to integrated systems, utilizing digital RS485 communication protocols, localized M-Bus structures, and cloud-enabled IoT interfaces. This paper outlines how manufacturers achieve safety certifications, maintain absolute reliability, and construct high-performance components that meet safety requirements in countries worldwide.
Deploying gas safety systems inside Class I, Division 1 hazardous areas requires explosion-proof cast aluminum casing and flame-arrestor sensor capsules. This limits internal spark propagation to guarantee containment under severe atmosphere conditions.
Modern catalytic bead, electrochemical, and infrared sensor combinations minimize false alarms from volatile organic compounds (VOCs) and moisture. Integrated microprocessors dynamically correct baseline drift, extending sensor lifespan past 5 years.
Connecting gas detector systems to solenoid valves and ventilation loops via low-voltage power boxes and specialized input modules ensures quick shutdown events. The interlock control box triggers within milliseconds of reaching preset Lower Explosive Limit (LEL) values.
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.
Our continuous expansion and technical output highlights our commitment to top-tier gas safety engineering.
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.
Combining the cost-efficiency of Chinese manufacturing hubs with specialized applications worldwide.
Located within China's premier industrial manufacturing belt, Xinhaosi operates direct channels to base metals, advanced sensors, and high-performance semiconductor components. This reduces development times, avoids supply disruptions, and guarantees consistent delivery even during volatile market events.
In high-density apartment blocks and urban developments, household gas alarms connect straight to utility meters. Our standard M-Bus wiring setups allow thousands of detectors to connect to central monitoring points, with automatic gas supply shut-off if a leak is found.
From petrochemical refineries to steelworks, our explosion-proof sensor enclosures resist extreme temperatures and exposure to sulfur compounds. Integrated optical flame sensors work alongside gas alarms to provide a comprehensive hazards safety field.
From a localized startup to a global pioneer in gas safety technology and intelligent industrial valves.
Designing next-generation protection equipment for smarter cities and safer production zones.
Cabling setup accounts for up to 60% of the cost of installing traditional commercial gas alarms. Our next-generation wireless product range utilizes low-power wide-area networks (LPWAN) to provide real-time updates directly to web interfaces without needing power or communications wires, lowering overall deployment costs.
Instead of alerting only when the gas concentration reaches dangerous limits, our upcoming AI-enabled alarm models analyze slight concentration changes over time. By using smart sensor modules, the system predicts pipeline degradation and leaks early, preventing safety incidents before they start.
Combining gas leak detection with flow meters allows the valve system to recognize leaks that occur downstream of the sensor. If the flow rate is abnormal and the air sensor detects gas, the valve shuts down the line to isolate the hazard immediately.
Expert answers regarding gas detection systems, regulatory compliance, and installation best practices.
Catalytic combustion sensors measure combustible gas by oxidizing it on a special bead, which changes resistance. They are cost-effective but can become poisoned by silicone or sulfur compounds. Infrared (NDIR) sensors use light absorption to measure gas levels. They do not need oxygen, cannot be poisoned, and last longer, making them ideal for petrochemical facilities.
CNAS accreditation confirms that our test laboratory meets global standards for testing and calibration. Test results from our laboratory are recognized internationally under the ILAC-MRA framework, showing that our gas alarms are verified for reliability and accuracy before shipment.
Industrial safety regulations recommend calibration every 3 to 6 months depending on the environment. Residential alarms are pre-calibrated to detect natural gas or LPG for their lifetime (usually 5 years) and feature self-testing buttons to verify operation.
A gas interlock control box connects gas alarms to safety valves and ventilation fans. If a detector identifies a leak, the control box triggers the valve to shut off the gas supply and turns on the ventilation fans to disperse the gas safely.
Essential components designed to complete your industrial gas monitoring and automatic shut-off systems.
