Browse our core manufactured items engineered to detect propane leaks, manage pipe pressure, and execute automated shut-offs.
In modern high-risk industries, reliable propane gas leak detection is the foundation of structural safety, regulatory compliance, and operational continuity.
Propane (LPG) has a vapor density greater than air, causing leaks to rapidly pool in low-lying structural zones and build up explosive LEL (Lower Explosive Limit) pockets. Global procurement agents require robust, explosion-proof monitoring networks to eliminate risk and prevent catastrophic failure.
Compliance with global safety frameworks—including European Union ATEX / CE directives, American Occupational Safety and Health Administration (OSHA) regulations, and SIL safety integrity level certifications—is mandatory. We supply compliant hardware globally to prevent severe legal liabilities.
Industrial procurement relies on Total Cost of Ownership (TCO) calculations. Low-cost, poorly calibrated generic gas sensors trigger high rates of false alarms, which can shut down production lines and cost thousands of dollars per hour. Our highly stable, industrial-grade sensors keep lines running smoothly.
Combining detection, localized control, and physical safety shutdowns into a single unified framework.
A simple audible alarm is insufficient for industrial gas safety. Commercial sites require integrated systems that actively detect, contain, and resolve leaks immediately.
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.
Advanced in-house R&D, certified testing laboratories, and certified performance metrics.
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.
Over two decades of engineering development, smart facility upgrades, and global expansion.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarm & fire fighting products.
● Started gas safety valve production.
● Expanding the OEM business model.
● Moved to the corporate office building in Longtan Industrial Park.
● Achieved sales of 10 million gas detector units.
● Moved into the new Chengdu manufacturing facility.
● Completed sales & service network across China.
● Launched fire power monitoring system products.
● Self-developed IoT platform launched.
● Launched fire automatic alarm, emergency lighting, and evacuation systems.
● Obtained national high-tech enterprise certificate.
● Qualified official supplier of China’s top 5 gas suppliers.
● Started construction on the Deyang factory.
● 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.
Pioneering the next generation of gas safety systems through digital integration and AI diagnostics.
By integrating AI algorithms with our proprietary gas detector controller systems (e.g., JB-TB-AT2020LH), we are shifting from reactive safety actions to active predictive maintenance. Sensors now analyze trace historical fluctuations in propane readings to identify potential micro-leaks before they trigger an emergency.
Modern industrial facilities demand flexible installation layouts. Our future roadmap focuses on expanding LoRaWAN, NB-IoT, and ZigBee wireless sensor modules. This removes the need for physical control cabling, reducing installation and maintenance costs for global projects.
Building on our patented flow-monitoring solenoid valves, the next iteration combines gas concentration metrics with real-time pipeline pressure analytics. This system can identify minor pressure losses along the pipeline, providing rapid shut-down responses.
Our research center is scaling up commercial applications for infrared laser spectroscopy gas detectors. This tech delivers sub-second response times and high gas specificity, eliminating false positive alerts from other ambient VOCs.
Delivering reliable, certified safety solutions to industrial, commercial, and residential projects worldwide.
Our ATEX-certified explosion-proof transmitters are deployed in refineries, chemical storage sites, and LPG distribution yards. Designed to withstand harsh environmental conditions, corrosive atmospheres, and extreme temperatures.
We work with major global municipal natural gas and propane suppliers. Our solutions include pipeline network pressure management, remote monitoring boxes, and automatic pipeline shut-off valves.
We support brand partners with tailored industrial design modifications, custom enclosure branding, application firmware tuning, and localized electrical protocol integrations (e.g., Modbus, 4-20mA, CAN-bus).
Expert answers to common technical queries about industrial propane leak detection systems.
Propane gas leaks are typically monitored using catalytic bead sensors for LEL (Lower Explosive Limit) ranges because of their low cost, high reliability, and linear response curves up to 100% LEL. For harsh environments with corrosive chemical contaminants or low oxygen levels, Non-Dispersive Infrared (NDIR) sensors are preferred due to their chemical resistance, extended lifetime, and reduced calibration frequency requirements.
CNAS accreditation confirms that our test and calibration laboratories conform to ISO/IEC 17025, the international standard for technical competence. This means our calibration reports are traceable and recognized globally under the ILAC-MRA framework, giving customers confidence that our gas sensors are calibrated to precise national standards.
When a gas leak is detected and reaches the preset warning threshold, the controller sends an electrical signal (e.g., a 24V impulse) to the gas shut-off valve. This triggers the valve's mechanical release, instantly cutting off the gas supply. The system requires manual reset once the area has been cleared, preventing accidental re-pressurization before the leak is resolved.
Propane gas is heavier than air, with a relative density of about 1.5. This causes leaking gas to pool in low-lying areas. Propane detectors should be installed about 0.3 meters to 0.6 meters above floor level, and ideally within 1.5 to 3 meters from potential leak sources (such as valves, heaters, or appliances) to ensure rapid detection.
Complete your facility safety layout with our full line of controllers, valves, and specialized transmitters.
