High-Quality Valve And Solenoid Supplier & Manufacturers

Global Safe Flow Control Solutions & Certified OEM/ODM Manufacturing Excellence

Company Profile

Founded in 2003, Xinhaosi has spent over two decades cementing its position as one of the most influential, technologically advanced, and trusted brands in the global gas safety and automatic control industries. Over this span, we have systematically constructed a robust, vertically integrated manufacturing and services infrastructure. This ecosystem encompasses state-of-the-art research and development facilities, highly automated intelligent manufacturing centers, global digital sales and logistics networks, professional engineering after-sales support teams, and flexible OEM/ODM frameworks.

Furthermore, our in-house test and calibration laboratories hold CNAS Accreditation under ISO/IEC 17025 standards, guaranteeing that our product certifications and measurements meet strict international benchmarks. Our production plants in Chengdu and Deyang feature top-tier machinery and lean management systems, enabling the output of millions of units annually to support key infrastructure sectors.

Decades of Industrial Engineering Expertise

Our diversified systems catalog ranges from industrial and residential gas leak alarms to electromagnetic gas safety solenoid valves and municipal gas pipeline monitoring equipment. Each item is engineered to perform reliably under high-stress operating environments, volatile temperature thresholds, and strict explosive classification zones.

Chengdu Factory & Office
Chengdu Factory & Office
Deyang Factory
Deyang Factory
Xinhaosi Technical Strength & Laboratory

Technical Strength & Quality Authority

At Xinhaosi, compliance is the baseline, and exceptional performance is the target. Our design, development, and production processes strictly adhere to the ISO 9001 Quality Management System. Demonstrating our structural expertise, our core products hold international and national safety validations including National Compulsory Product Certification (3C), Explosion-Proof Protection Rating, Fire Service Product Certificates, and CPA Measurement Instrument Approvals. Additionally, our global export lines are fully certified under European CE and Safety Integrity Level (SIL) frameworks.

Our commitment to tech leadership is highlighted by over 50 registered patents and software copyrights. Key proprietary designs include a graphical system for gas safety monitoring that enables data-driven predictive maintenance, reducing equipment failure parameters by more than 30%. In addition, we patented a gas flow monitoring solenoid valve that combines mechanical containment with instant electronic flow tracking. As a primary compiler of national gas safety standard drafts, Xinhaosi pioneered China's first networked bus-type leakage detection layout and the only high-density gas leakage system certified by the Ministry of Public Security.

Our CNAS-Accredited laboratory operates under the ILAC-MRA framework, giving worldwide commercial significance to our validation, test, and environmental simulation reports. This enables international procurers to secure smooth regulatory entry into European, Asian, and American markets.

20+
Years of Industry Leadership
50+
Patents & IP Software
CNAS
Accredited Calibration Lab
10M+
Annual Production Units

The Strategic Advantage of China's Valve and Solenoid Supply Chain

Procuring industrial components from China is no longer just about cost control; it is about accessing highly integrated advanced manufacturing ecosystems, faster cycle times, and scalable customized engineering.

Vertical Integration

Xinhaosi oversees every phase of product creation, from copper coil winding and precision machining of brass and cast aluminum bodies, to electronic PCB soldering, final calibration, and pressure testing. This minimizes external logistics lag and assures quality consistency.

Scalable Advanced Automation

Equipped with advanced CNC machining centers and high-speed robotic assembly, our Deyang and Chengdu production plants maintain stable lead times. We support high-volume manufacturing lines capable of outputting millions of industrial valves and safety modules annually.

Supply Chain Resilience

Our location in the western industrial hub of Chengdu-Deyang provides direct access to high-grade raw metal suppliers, polymer seal factories, and silicon processing centers. This proximity shields our logistics from coastal port congestion and raw material volatility.

Addressing Global Procurement Needs, Standards & Compliance

International sourcing departments face complex regulatory and performance standards when purchasing safety control components. Standard industrial valves are unsuitable for environments prone to gas accumulation or pressure fluctuations. At Xinhaosi, we address these technical requirements through customized engineering.

Explosion-Proof Ratings (ATEX, IECEx, CNEx):

Our solenoids are engineered with flameproof enclosures, preventing internal electrical sparks from igniting external ambient vapors.

Voltage Adaptability & Protection:

Coils are wound to support diverse power systems (e.g., 220V AC, 110V AC, 24V DC, 12V DC impulse) with robust ingress protections (IP65, IP66, IP67).

Corrosion Control & Material Tracing:

Valves are constructed from brass, cast aluminum alloy, or stainless steel, with synthetic rubber seals (NBR, Viton, FKM) configured for corrosive sour gases.

Whitepaper Snippet: Compliance Diagnostics

When evaluating a potential valve manufacturer, international engineers must examine the safety interlinking capabilities of electromagnetic shut-off lines. Xinhaosi valves integrate directly with central gas detector controllers. Upon detection of a minor gas leak, the controller transmits an electrical impulse within milliseconds, triggering the solenoid mechanism to drop the valve and stop the flow of gas.

"Our gas safety configurations operate on a one-way trip philosophy. Once triggered, the solenoid shut-off valves remain closed even if power is completely cut, preventing manual resets before the leak is resolved."

- Xinhaosi Lead R&D Engineer

Localized Applications & Engineered Integration

Different operating environments demand targeted safety measures. Xinhaosi manufactures valves and controllers optimized for specific commercial and municipal industries.

Residential Gas Shut-Off Systems

Integrated with residential gas leak detectors, our compact household solenoid valves (e.g., XF2 series) provide automatic flow containment inside apartments, multi-family housing complexes, and smart homes.

Petrochemical & Industrial Processing

Engineered for high-volume pipelines in petrochemical refineries, chemical storage areas, and pharmaceutical plants. Heavy-duty explosion-proof enclosures guard critical components against ignition risks in Class I, Division 1 areas.

Municipal Pipelines & Commercial Kitchens

Used to protect public utilities, restaurants, school cafeterias, and urban heating systems. Integrates with gas pressure transmitter controllers to manage flow anomalies and mitigate distribution issues.

Industry Development Trends: Smart, IoT-Linked Control Systems

The valve and solenoid manufacturing sector is shifting from passive, mechanical containment to active, intelligent management systems. Our engineering department is focused on integrating digital electronics with mechanical flow systems.

The Transition to Industrial IoT (IIoT)

Modern commercial infrastructure requires remote telemetry. Valves are no longer isolated; they must report status data back to central control systems in real time.

Xinhaosi's developmental framework highlights three key industry trends:

  • AI-Enabled Predictive Diagnostics: Continuous monitoring of current draw, response latency, and pressure differentials helps detect coil degradation or seal wear before mechanical failure occurs.
  • Wireless & Low-Power Integration: Combining mechanical flow valves with LoRaWAN, NB-IoT, and 4G communication modules enables remote management in remote or unpowered locations.
  • Hydrogen-Ready Alloys: As industries transition to clean energy, we are testing materials resistant to hydrogen embrittlement, ensuring safety in future energy distribution systems.

Emerging Technologies: AI Safety Valves

Our upcoming generation of AI-enabled safety valves integrates microprocessors directly into the solenoid coil enclosure. This allows the system to:

  • Run scheduled self-test closures during low-demand periods.
  • Log operational cycles and telemetry history.
  • Communicate directly with mobile networks without requiring external control panels.
  • Differentiate between rapid pressure drops from normal usage and physical pipeline ruptures.

Over Two Decades of Strategic Growth & Technical Milestones

A history of safety engineering, showing our transition from a localized component supplier to a globally recognized manufacturer.

2003-2008
Foundation & Early R&D
  • Established on April 17th, 2003.
  • Launched first-generation gas leak alarm models and fire control devices.
  • Focused on developing regional commercial markets.
2009-2012
Manufacturing Expansion
  • Launched specialized gas safety solenoid valve production.
  • Expanded OEM partnerships for international clients.
  • Relocated corporate office to Longtan Industrial Park.
2013-2016
Scalability & Safety Networks
  • Achieved milestone of 10 million units sold.
  • Relocated to the main Chengdu factory complex.
  • Expanded nationwide sales and support network.
2017-2020
IoT Platforms & Key Supply Status
  • Developed and launched our proprietary IoT monitoring platform.
  • Certified as a High-Tech Enterprise.
  • Became an approved supplier for China's top five gas distribution companies.
2021-2023
Global Division & Expansion
  • Began construction of the Deyang manufacturing plant.
  • Established the Petrochemical & International Business Division.
  • Named a Sichuan Provincial Technology Center.
2024-Future
AI Integration & Wireless Solutions
  • Completed and opened the new Deyang factory.
  • Launched smart pipeline network monitors and wireless products.
  • Introduced intelligent AI-enabled safety valve systems.

Technical FAQ: Valves, Solenoids, and Gas Systems

Detailed technical information and design calculations for procurement officers and gas safety engineers.

What is the difference between a pulse-triggered and a continuous-power solenoid valve? +
Pulse-triggered solenoid valves require only a brief electrical impulse (typically 50ms to 500ms) to actuate and latch into position. A manual mechanical reset is required to reopen the valve. This design minimizes power consumption and prevents coil overheating. Continuous-power solenoid valves require constant electrical current to maintain their position; they shut automatically if power is lost, which is useful in safety-critical systems.
How does Xinhaosi verify its explosion-proof classifications for dangerous areas? +
Our valves are tested and certified to comply with explosion-proof standards, including Ex d IIC T6 Gb. This ensures the valve body and solenoid coil housing are strong enough to contain any internal explosion and prevent ignition of flammable gases in the surrounding atmosphere.
What custom services does Xinhaosi offer for international OEM and ODM clients? +
We provide custom engineering services, including modifications to valve body dimensions, thread types (NPT, BSP, BSPT), coil voltage ratings, custom labeling, and software changes for detector controllers. We also configure complete systems tailored to regional regulatory requirements.
Why is CNAS calibration testing important for international compliance? +
CNAS laboratory calibration conforms to ISO/IEC 17025 standards and is recognized internationally under the ILAC-MRA framework. This ensures that all testing data is accurate, traceable, and accepted by regulatory authorities worldwide, reducing testing duplication.
What materials are used to ensure chemical compatibility with different gases? +
We use high-grade brass, cast aluminum alloys, and stainless steel for our valve bodies. Seals are constructed from NBR, Viton, or FKM, depending on the chemical properties of the target gas (such as methane, LPG, natural gas, or sour gas containing trace hydrogen sulfide).
What is the estimated lifecycle of a Xinhaosi solenoid coil under normal operating conditions? +
Our solenoid coils are designed and tested to withstand more than 100,000 operations. The use of Class H insulation materials, which resist operating temperatures up to 180°C, helps prevent thermal degradation and ensures reliable long-term performance.