OEM Gas Solenoid Valve Supplier & Manufacturers

Decarbonization, Safety Automation, and High-Performance Fluid Control Solutions for the Global Process Industries

20+
Years of Industry Expertise
50+
Patents & IP Rights
10M+
Annual Production Output
SIL3
Certified Functional Safety
Chengdu Factory and Headquarter Office Deyang Factory High Capacity Line

Chengdu HQ Office (Top) & Deyang Intelligent Production Plant (Bottom)

Company Profile & Global Operational Footprint

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.

Technical Strength & CNAS Laboratory Excellence

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 such as CE and 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.

Xinhaosi CNAS Certified Calibration Lab & Technical R&D

Company History & Strategic Milestones

A strategic look back at over two decades of innovation, factory scaling, and market leadership in gas safety automation.

2003-2008
Startup Phase

Established on April 17th, 2003. Launched our first-generation gas leak alarm and fire fighting equipment. Laod the foundation for safety engineering.

2009-2012
Initial Scale & Valve Production

Initiated dedicated production lines for gas safety valves. Commenced large-scale expansion of our OEM/ODM partnership network. Moved to our Longtan Industrial Park offices.

2013-2016
Rapid Industrial Expansion

Achieved a milestone of 10 million units in cumulative gas detector sales. Relocated to our primary Chengdu manufacturing facility. Established a nationwide sales & service framework.

2017-2020
IoT Platform Integration

Launched our self-developed Cloud IoT monitoring platform. Introduced smart fire alarm integration and emergency evacuation systems. Qualified as a supplier for China's top five gas companies.

2021-2023
Deyang Plant & Int. Operations

Began construction of the highly automated Deyang manufacturing base. Established the Petrochemical & International Business Division to meet overseas SIL2/SIL3 standards.

2024—Future
Smart AI & Next-Gen Control

Deyang factory fully operational. Rolled out wireless IoT sensors, advanced urban pipeline monitoring hardware, and AI-enabled smart safety valves for predictive emergency isolation.

Industrial Whitepaper: OEM Gas Solenoid Valves

A comprehensive technical deep-dive into mechanical structure, localization challenges, supply chain resilience, and the future of hydrogen-blend safety systems.

1. Localized Application Scenarios & Customization

Industrial environments vary drastically by climate, geographic region, and regional safety mandates. Our OEM/ODM program addresses these differences via custom-engineered physical parameters:

  • Severe Cold Environments (Siberian/Nordic pipelines): Seals are fabricated with low-temperature fluorosilicone rubbers (FVMQ) to guarantee rapid actuation down to -40°C.
  • Coastal & Offshore Conditions: Valves feature SS316 marine-grade bodies and NEMA 4X / IP68 enclosures to resist salt-water corrosion.
  • High-Humidity Tropic Regions: Coils are class-H double encapsulated in epoxy resin to prevent electrical short-circuiting under continuous condensation.

2. Technical Roadmap & The Hydrogen Transition

Decarbonization is reshaping the fluid dynamics landscape. Traditional gas safety valves must evolve to handle lighter, more volatile gases. Our active engineering initiatives include:

  • Hydrogen-Ready Alloys: Researching metals resistant to hydrogen embrittlement (low nickel and controlled carbon alloys) for safe control of up to 100% pure H2.
  • AI-Driven Diagnostic Coils: Integrating current-loop analysis sensors within the solenoid coil. This allows continuous telemetry tracking of mechanical wear and predictive failure notifications.
  • Ultra-Low Power Actuation: Implementing dual-winding pulse control, dropping holding current draw by up to 85% to support off-grid solar-powered RTU stations.

3. China Supply Chain Resilience & Efficiency

Manufacturing solenoid valves requires a balance of high-precision machining, chemical engineering for sealing components, and high-purity electrical copper winding. Our Chengdu and Deyang facilities leverage strategic regional advantages:

  • Vertical Supply Integration: 95% of our component supply chain—from high-strength alloy forging to injection-molded terminal blocks—is concentrated within a 100-kilometer industrial radius.
  • Autonomous High-Speed Tooling: Our automated machining centers perform high-precision drilling and lathe milling within micron-level tolerances, reducing turnaround times for high-volume orders by 40%.
  • CNAS Assurance Loop: Unlike suppliers reliant on third-party test houses, our integrated CNAS lab carries out batch-level hydrostatic stress, helium leak, and coil temperature-rise testing in-house.

4. Global Regulatory Compliance & Field Support

Operating cross-border requires deep alignment with safety directives. Our engineering division works alongside regional regulatory offices to provide localized safety assurance:

  • European Union (ATEX/CE): Standardized compliance for explosive atmospheres under EN 60079 series certifications.
  • Functional Safety (SIL2 / SIL3): Engineered safety loops with verified safe-failure fraction (SFF) ratings to suit emergency shut-down (ESD) structures in modern chemical plants.
  • Local Field Engineering: A dedicated global support structure to guide local commissioning teams through gas compliance audits and local system integrations.

Expert Q&A: Gas Solenoid Valve Engineering

Direct technical answers addressing functional design, maintenance protocols, and safety compliance from our senior engineers.

What is the difference between a Normally Open (N/O) and Normally Closed (N/C) gas safety solenoid valve?
A Normally Open (N/O) valve remains open when de-energized and closes only when an electrical current or trip pulse is applied, making it ideal for fire safety and emergency isolation where power failure should not disrupt flow. A Normally Closed (N/C) valve requires continuous electrical power to stay open; once power is cut or a failure occurs, the valve automatically snaps shut via spring-return, making it suitable for burner systems where immediate safety shutdowns are required upon power interruption.
How does the CNAS laboratory status impact international quality verification?
Our CNAS-accredited calibration laboratory operates in accordance with ISO/IEC 17025. Through the ILAC-MRA mutual recognition agreement, all test reports, pressure integrity validations, and calibration data issued by Xinhaosi are recognized in over 100 countries. This accelerates certification steps, ensures compliance with local safety standards, and shortens customs clearance for custom OEM shipments.
Which materials are recommended for corrosive gas compositions, such as sour natural gas?
For sour gas containing high concentrations of hydrogen sulfide (H2S), we employ custom-cast 316 stainless steel housings coupled with NACE MR0175/ISO 15156 compliant internals to resist sulfide stress cracking. Sealing materials are upgraded to hydrogenated nitrile (HNBR) or Viton (FKM), which are highly resistant to degradation by chemical contaminants and liquid hydrocarbons.
What electrical options are available for remote, off-grid installation sites?
For remote telemetry stations, SCADA networks, and city gate stations lacking high-voltage grid power, we offer low-power latching solenoid options. These valves only require a brief 24VDC electrical pulse (less than 1 second) to switch state, remaining in that position without drawing continuous current. This makes them highly compatible with solar-powered RTU and PLC controls.
What certifications do Xinhaosi gas valves carry for explosion hazard zones?
Our industrial solenoid valves carry national explosion-proof certificates, CE, and SIL safety integrity ratings. Depending on the model, they meet flameproof (Ex d IIC T6 Gb) and dust ignition-proof (Ex tb IIIC Db) specifications, allowing installation in Zone 1 and Zone 2 hazardous gas atmospheres, as well as Zone 21 and 22 combustible dust zones.