Explore our core engineered solutions designed for high-reliability residential, commercial, and industrial gas networks.
How technological integration and strict municipal fire codes are transforming the design parameters of modern shut-off valves.
Modern commercial and residential infrastructure demands components that withstand corrosion, extreme high temperatures, and high cycling rates. OEMs are shifting heavily towards high-grade, low-lead brass, anodized aluminum, and premium stainless steel alloys to meet structural standards like EN 161 and UL 429.
The rise of Smart Buildings requires gas range shut-off valves to communicate directly with building management systems (BMS), wireless gas detectors, and smart alarms. Automated closing protocols triggered by methane, butane, or carbon monoxide detection prevent accidents before human intervention is possible.
As utility companies globally pilot natural gas and hydrogen blend pipelines, manufacturers must design shut-off systems capable of handling hydrogen's lower molecular weight and faster diffusion rate. Advanced elastomeric seals are becoming critical to eliminate micro-leakages.
For industrial buyers, real estate developers, and gas distribution utilities, sourcing a gas shut-off valve is not merely about finding a competitive price. It is an exercise in risk mitigation and liability management. Strict safety compliance underpins all purchasing decisions.
Key procurement vectors include:
• Accredited Testing & Certifications: CE, SIL, CPA, CE, and fire safety ratings.
• Electromagnetic Response Times: Rapid closure in under 1 second during emergencies.
• Life Cycle Resilience: Solenoid designs proven to exceed 100,000 continuous open/close duty cycles.
To assure continuity, global procurement teams require suppliers with certified testing labs (such as ISO/IEC 17025 accredited facilities) to provide direct traceability of compliance records and structural tolerances.
Xinhaosi's ISO/IEC 17025 Compliant CNAS Accredited Calibration Laboratory
Combining advanced automation, localized raw material sourcing, and scale to assure uninterrupted production.
Chengdu Production Center & Research Division
Deyang Smart Automation Factory
Xinhaosi addresses the modern OEM supply chain bottleneck by operating two massive production locations in Chengdu and Deyang. Utilizing industrial IoT systems, automatic torque-testers, robotic winding for solenoids, and 100% digital leak testers, we ensure zero-defect product exits. By locating in Sichuan, we leverage local aluminum and copper casting networks, maintaining continuous material streams even during global maritime disruptions.
Over two decades of dedication to global gas safety instrumentation and valve technology.
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.
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.
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. We are proud to serve as a major drafting organization for the national standard of solenoid valves in China.
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.
A journey from a local pioneer to a global gas safety engineering standard setter.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarms and fire fighting support products, capturing the early industrial safety markets in China.
● Initiated in-house gas safety valve production lines.
● Expanded OEM partnerships globally.
● Relocated head offices to the modern Longtan Industrial Park to host expanded manufacturing infrastructure.
● Achieved milestone of 10 million cumulative gas detector units sold.
● Moved into dedicated Chengdu factory facility.
● Finalized nationwide sales & service networks.
● Launched fire power monitoring systems to safeguard high-density urban grids.
● Developed and launched Xinhaosi's self-developed cloud IoT Platform for real-time risk assessment.
● Deployed fire automatic alarms, emergency evacuation, and lighting platforms.
● Qualified as an official supplier to China's top 5 municipal gas conglomerates.
● Began construction on the advanced Deyang smart factory facility.
● Formed the Petrochemical & International Business Division to execute global safety operations.
● Awarded the title of Sichuan Provincial Technology Center.
● Deyang smart factory fully commissioned and operational.
● Rolled out intelligent urban pipeline monitoring devices and wireless battery-powered detector lines.
● Unveiled the next-generation AI Safety Valve product line with integrated sensor feedback.
Engineered safety configurations deployed where precision safety cannot be compromised.
High-volume restaurants and hotel gas ranges use heavy-duty solenoid shut-off systems integrated with emergency stop buttons, exhaust fan interlocks, and fire suppression systems. If a kitchen fire starts, safety systems isolate fuel lines within milliseconds.
Multifamily complexes require individual shut-off systems connected to household gas detectors. If a tenant experiences burner extinction, the low-voltage battery-operated shut-off valve cuts the flow, preventing unit-to-unit gas migration.
Petrochemical, chemical dosing, and heavy manufacturing facilities require explosion-proof (Ex d) gas detectors integrated with main shut-off valves to lock down main gas headers during pressure anomalies or major line breaks.
Direct answers to critical design, installation, and compliance questions from our engineering department.
Our solenoid valves are typically available in two configurations: Normally Closed (NC) and Normally Opened (NO). For safety shut-off systems, Normally Opened (NO) valves with a manual reset function are common because they do not consume power during normal operations, only triggering when an electrical pulse is supplied during an alarm. Normally Closed (NC) valves are standard in processes where fuel flow must be cut immediately during power losses.
Yes. As an OEM and ODM manufacturer with our own R&D facilities, we can customize parameters such as thread types (NPT, BSPT, Flanged), working voltages (12VDC, 24VDC, 110VAC, 220VAC), raw materials (brass, aluminum, stainless steel), and flow coefficients (Kv value) to meet specific design requirements of gas appliance brands.
Every single valve undergoes pressure testing to verify sealing efficiency and structural integrity, as well as coil insulation testing. Randomly selected samples undergo cycle testing, environmental chamber simulations, and high-pressure burst testing inside our CNAS accredited laboratory to guarantee conformity with ISO 9001 and CE directives.
Our wireless smart pressure monitors (like the AT0635 Series) continuously transmit pipeline pressure data to a central controller. If an abrupt drop in pressure occurs (indicating a ruptured line) or an over-pressure event is detected, the controller triggers the gas solenoid valve to close down the flow path instantly, protecting users and assets.
Explore our targeted solutions including low-voltage distribution controllers and certified explosion-proof gas sensors.
