Integrate our leading 1-inch shut-off systems with state-of-the-art monitoring arrays for fail-safe industrial control.
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, and professional after-sales support.
Our diversified product portfolio covers industrial & residential gas detection & alarm systems, industrial & household gas solenoid valves (including specialized 1 inch shut off valve configurations), and urban gas pipeline network monitoring systems. Guided by the core mission of "Making Gas Safety Accessible Everywhere," we deliver high-performance, reliable products and customized solutions tailored to each client's unique needs.
Chengdu Factory & Office
Deyang Factory
We design and manufacture gas solenoid shut-off systems under strict domestic and international safety certifications.
Adhering to ISO9001 quality management system standards, Xinhaosi's core products have obtained a full range of authoritative certifications, including national compulsory Product Certification, explosion-proof certification, fire product certification, CPA measurement instrument type approval certificate, and international approvals such as CE and SIL. Additionally, Xinhaosi is the main drafting organization for the national standard of solenoid valves, confirming our leading industry footprint.
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, providing reliable and traceable testing services for 1-inch shut-off valves, gas safety mechanisms, and automatic monitoring systems.
An authoritative guide to material selections, fluid dynamics, and manufacturing capabilities.
Our 1-inch shut-off valves are cast in premium brass, cast steel, and SS304/SS316. This provides exceptional resistance against high corrosion, media friction, and thermal expansion in pipelines carrying natural gas, LPG, and light industrial gases.
Operating out of Chengdu and Deyang, our factories utilize high-precision CNC machining, automatic multi-station assembly, and real-time gas leakage testing. By controlling the complete supply chain, we achieve cost efficiency and offer flexible OEM/ODM modifications.
Designed for hazardous atmospheres, the electrical solenoids are rated up to Ex d IIC T6 Gb. The enclosing protective casings offer IP65 and IP67 dust and water ingress ratings, ensuring safe operations in harsh petrochemical installations.
Exploring how industrial, commercial, and utility sectors apply our safety valves.
In urban gas networks, a 1-inch pipeline acts as a vital utility link. Our automatic emergency shut-off valves (solenoid type) are linked to gas monitoring sensors. If a concentration spike is detected, the valve triggers within 0.5 seconds, cutting off the gas source and preventing catastrophic explosions.
For industrial manufacturing, boiler gas feeding systems depend on consistent shut-off cycles. The high pressure ratings (up to 100 kPa for residential/commercial and up to 0.4 MPa for high pressure lines) combined with low pressure drop characteristics optimize flow efficiency while maximizing site safety.
Modern commercial buildings and high-rise apartments utilize our networked bus-type leakage systems. In these configurations, multiple 1-inch gas safety valves are connected to central smart gateways, facilitating centralized safety control and automated emergency venting.
Incorporating smart IoT capabilities allows property managers to perform predictive maintenance. Built-in flow and pressure sensors transmit valve performance data directly to cloud platforms, alerting teams of micro-leaks before they escalate into safety threats.
How we align our production lines with global standards to simplify international supply chains.
International buyers seek certified reliability. Our valves align with EN 161 standards for gas burners and gas appliances, and carry full SIL2 safety integrity level ratings, ensuring high reliability in critical safety circuits.
Every pipeline system is unique. We provide customized solutions including bespoke thread standards (NPT, BSPT, Flanged ANSI/DIN), specific coil voltages (DC12V, DC24V, AC220V), and manual reset mechanism variations.
Every single unit manufactured at our Deyang and Chengdu facilities undergoes helium leak testing and calibration. All test data is securely logged and traceable, meeting the strict quality metrics demanded by Fortune 500 gas providers.
In 2024 and beyond, the gas control industry is rapidly shifting towards integrated smart components. Xinhaosi has pioneered the integration of AI-enabled smart safety valves and wireless monitoring networks. These devices do not merely shut off in emergencies; they actively monitor flow patterns, detect system anomalies, and communicate via cellular or LoRaWAN networks to ensure safety in real time.
Two decades of steady growth, safety innovations, and manufacturing excellence.
Established on April 17, 2003. Launched our first-generation gas leak alarm and fire fighting equipment to secure domestic premises.
Started high-volume production of gas safety valves and expanded our global OEM partnership network.
Achieved 10 million units in gas detector sales. Moved to our modernized Chengdu production facility.
Launched our self-developed IoT safety platform. Qualified as an official supplier to China's top 5 gas suppliers.
Began construction of our state-of-the-art Deyang factory. Formed the Petrochemical & International Business Division.
Deyang factory fully operational. Launched advanced wireless detection systems and smart AI gas safety valves.
Technical answers regarding 1-inch shut-off valve design, operation, and compliance.
Explore our domestic safety products and automated solenoid shut-off systems.
