Global Industrial & Infrastructure Security

High-Quality Safety Gas Shut Off Valve Suppliers & Manufacturers

Empowering industrial ecosystems and municipal gas grids with class-leading gas detectors, solenoid shut-off valves, and interlock control stations certified to global safety and performance standards.

Featured Gas Safety & Monitoring Equipment

Explore our primary portfolio of industrial-grade explosion-proof detectors, dual-spectrum flame monitors, and high-precision pressure management panels engineered for high-risk zones.

OEM China GTYQ-AT0503/d Explosion Proof Combustible Gas Detector
OEM China GTYQ-AT0503/d Explosion Proof Combustible Gas Detector | Trusted Suppliers & Factory Options
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High-Quality JT-AT2007 Series Household Combustible Gas Detector
High-Quality JT-AT2007 Series Household Combustible Gas Detector Supplier
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OEM FD1020 Dual Infrared Flame Detector
OEM FD1020 Dual Infrared Flame Detector Manufacturers, Factories
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High-Quality IFD2020 Dual Infrared Flame Detector
High-Quality IFD2020 Dual Infrared Flame Detector Suppliers, Factory
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High-Quality China AT2031X Low Voltage Power Box
High-Quality China AT2031X Low Voltage Power Box - Reliable Suppliers & Factory for High-Quality Electrical Solutions
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High-Quality XCS-P3051 Pressure Transmitter
High-Quality XCS-P3051 Pressure Transmitter from China Factory - Quality Sensors by Trusted Suppliers
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High-Quality China GT-AT0616 Series Underground Shaft Combustible Gas Monitoring Device
High-Quality China GT-AT0616 Series Underground Shaft Combustible Gas Monitoring Device
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High-Quality BJX-24E/BJX-22E Explosion-proof Light and sound alarm
High-Quality BJX-24E/BJX-22E Explosion-proof Light and sound alarm Suppliers, Manufacturer
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Corporate Overview & Manufacturing Infrastructure

Established in 2003, Xinhaosi has consolidated its position as an international authority in the design, engineering, and distribution of industrial safety systems. We specialize in producing safety gas shut off valves, industrial combustible gas detectors, flame detectors, and integrated control systems. Over the course of two decades, we have designed a robust business model that seamlessly unifies cutting-edge R&D with advanced manufacturing systems, worldwide digital logistics networks, CNAS-accredited calibration and validation, and customizable OEM/ODM services.

Our mission, "Making Gas Safety Accessible Everywhere," drives our production line to output millions of units annually. Our solutions serve complex critical infrastructure including oil & gas exploration sites, petrochemical processing facilities, public gas distribution utilities, automotive plants, pharmaceutical laboratories, green hydrogen projects, and automated manufacturing systems. Every unit deployed complies with strict safety and reliability requirements.

Xinhaosi Chengdu Factory & Office Complex
Chengdu Corporate HQ & R&D Center
Xinhaosi Deyang Production Facility
Deyang Intelligent Manufacturing Hub

E-E-A-T Validated: Technical Authority & Quality Compliance

Our engineering processes adhere strictly to ISO9001 quality management system standards. To guarantee compliance in high-risk zones, Xinhaosi’s core safety gas shut off valves and sensing hardware possess all critical international certifications:

Explosion-Proof Ratings

Certified under ATEX and local fire safety protocols for hazardous Ex zones.

Functional Safety

SIL (Safety Integrity Level) certifications ensure safe shutdown operations.

CNAS Lab Testing

In-house ISO/IEC 17025 accredited laboratory certified by CNAS (ILAC-MRA network).

Xinhaosi is a member of the China Fire Protection Association and acts as a main drafting organization for national standards governing gas solenoid valves. We maintain more than 50 patents and software copyrights. Among these is our proprietary graphical monitoring system for gas alarm installations, which utilizes predictive diagnostics to lower field failure rates by up to 30%.

Xinhaosi CNAS Accredited Calibration Laboratory
CNAS Testing & Calibration Laboratories

20+

Years of Industrial Innovation

50+

Patents & Intellectual Rights

10M+

Units Deployed Annually

30%

Reduction in System Failure Rates

The Competitive Edge of Chinese Safety Valve Manufacturing

Working with a Chinese manufacturer like Xinhaosi provides access to deep industrial supply chains and modern automated production processes. This allows us to supply highly reliable products at competitive prices.

Our Deyang and Chengdu production bases utilize automated machining centers, automated testing bays, and ISO/IEC 17025 accredited quality management protocols. This ensures consistent tolerances, high-integrity seals, and fast solenoid activation times across large volume production runs.

Additionally, our integrated supply chain enables rapid customization of valve body materials (including cast iron, brass, aluminum, and stainless steel), thread types (G, NPT, flanged), and specialized voltage inputs to meet global installation requirements.

Manufacturing Quality Framework

  • Automated Helium Leak Testing: Verifies zero-leak status on every valve body.
  • CNAS-Certified Environmental Chambers: Simulates extreme sub-zero and desert environments (-40°C to +80°C).
  • Explosion-Proof Verification: Ensures structural integrity in hazardous atmospheres.
  • End-to-End Traceability: Individual component tracking for reliable quality audits.

Localized Application Scenarios & System Integrations

Our safety gas valves and sensor matrices are engineered to perform reliably across diverse commercial, residential, and heavy industrial environments.

Petrochemical Refineries

In oil, gas, and chemical refining facilities, combustible gases pose constant safety challenges. Our explosion-proof detectors (e.g., GTYQ-AT0503/d) and SIL-rated emergency valves are deployed to isolate gas lines instantly when leak levels exceed safety limits.

Commercial & Smart Kitchens

Hotels, shopping centers, and school dining facilities rely on our gas safety systems. If carbon monoxide or natural gas levels rise, local sensors trigger the solenoid valves, shutting down the main gas line and activating alarms.

Municipal Utility Pipelines

City gas networks operate over large, complex grids. Using our low-voltage controller boxes and underground monitoring devices (such as the GT-AT0616 Series), engineers can track line integrity and isolate sectors remotely during seismic events or pressure anomalies.

The Evolution of Safety Innovation: Our Timeline

For more than two decades, Xinhaosi has developed from a local technology start-up into a global manufacturer of advanced gas safety equipment.

2003 - 2008

Establishing Foundations

Xinhaosi was founded on April 17, 2003. We launched our first generation of gas leak alarms and fire prevention safety products, establishing a base in China's industrial safety market.

Xinhaosi Early Operations
2009 - 2012

Production Scaling

We began manufacturing dedicated gas safety valves and expanded our OEM/ODM partnership operations. Operations moved to our modern Longtan Industrial Park complex to support scaling production volumes.

Xinhaosi Valve Production Expansion
2013 - 2016

Market Expansion

We achieved a milestone of 10 million cumulative gas detector units sold. We relocated to our main Chengdu factory, established a nationwide sales and support network, and introduced integrated fire and safety systems.

Chengdu Production Site
2017 - 2020

Technological Modernization

We developed and launched our proprietary IoT monitoring platform. We introduced advanced commercial safety, emergency lighting, and evacuation systems, and became an authorized supplier to China's major gas networks.

Xinhaosi IoT Platform Development
2021 - 2023

Industrial Infrastructure Growth

We broke ground on the Deyang smart manufacturing center and created a dedicated division for petrochemical and international projects. Our facilities were recognized as a Sichuan Provincial Technology Center.

Deyang Factory Construction
2024 - Future

AI & Connected Systems

Our Deyang factory is fully operational. We have introduced wireless gas sensors, AI-assisted safety valves, and automated pipeline monitoring equipment to support the transition to smart, digital safety grids.

Next Gen AI & IoT Gas Safety Solutions

Key Procurement Considerations for Gas Shut-Off Valves

Industrial purchasing managers must evaluate safety components based on technical compatibility, compliance, and material performance.

1. Operating Pressure & Compatibility

Verify maximum working pressure ratings (low-pressure systems vs. high-pressure industrial lines). Ensure compatibility with natural gas, LPG, coal gas, or hydrogen, including seal material compatibility (NBR, Viton) to prevent degradation.

2. Response Time & Reset Mechanisms

Safety protocols require shut-off times of under one second. System design should evaluate whether manual reset valves (requiring human intervention to restore gas flow) or automatic reset systems are appropriate for safety requirements.

3. Hazardous Area Classifications

Equipment deployed in refineries or chemical facilities must feature ATEX or IECEx certified explosion-proof coils (typically Ex d IIC T6). This ensures the solenoid mechanism cannot act as an ignition source in the presence of gas.

Gas Safety Systems FAQ & Industry Standards

Technical answers to common questions about safety valves, gas monitoring systems, and global regulatory compliance.

How does an automatic gas shut-off valve operate?
Automatic gas shut-off valves utilize electromagnetic force. The valve is kept open by a mechanical latch mechanism under normal operating conditions. When an external gas detector detects a leak exceeding a preset limit (typically 10% to 25% LEL), it sends an electrical impulse (e.g., 24VDC) to the valve's solenoid. This triggers the latch, causing an internal spring to shut the valve immediately, stopping the gas flow.
What is the significance of CNAS laboratory accreditation?
CNAS (China National Accreditation Service) accreditation indicates that Xinhaosi’s testing facilities conform to ISO/IEC 17025, the international standard for calibration and testing laboratories. Under the ILAC-MRA framework, our test reports are recognized globally. This guarantees that all physical and performance metrics of our valves, including pressure tolerance, response times, and sensor sensitivity, are verified to global standards.
Why are manual-reset solenoid valves preferred for safety applications?
Manual-reset solenoid valves are designed to prevent automatic gas restoration after an emergency shutdown. Once the valve closes due to a gas leak event, it must be opened by hand after the leak has been resolved and the area cleared. This safety design ensures that gas flow cannot resume until the system has been inspected and cleared by site technicians.
Can these safety valves operate in sub-zero or desert conditions?
Yes. Xinhaosi’s safety valves and industrial enclosures are engineered for operation across a temperature range of -40°C to +80°C. We use low-temperature resilient NBR and high-temperature Viton seals, combined with moisture-proof and explosion-proof coil housings, to ensure reliability under extreme climate conditions.
How do wireless gas pressure monitors benefit facility operations?
Wireless pressure monitors, such as the GT-AT0637 series, transmit pressure and flow data via networks like LoRaWAN or NB-IoT. This eliminates the need for expensive wiring in industrial yards or underground pipelines, allowing operators to monitor pressure changes, detect leaks early, and coordinate maintenance from a central control room.
What OEM/ODM customization options does Xinhaosi offer?
We support comprehensive OEM and ODM partnerships. This includes customizing valve body materials, thread standards (NPT, BSP, Flanged), working voltages (12VDC, 24VDC, 220VAC), and functional options like integrated limit switches. For gas detectors, we can customize casing colors, screen interfaces, sensor configurations, and communication protocols (Modbus, BACnet, Zigbee).

Auxiliary Safety & Distribution Equipment

Review our supplementary safety equipment catalog, featuring smart pressure sensors, LPG flow regulators, interlock panels, and localized alarm interfaces.

High-Quality GT-AT0637 Wireless Smart Pressure Monitor
High-Quality GT-AT0637 Wireless Smart Pressure Monitor Suppliers, Factories
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OEM China JYT0.6-1/2 Bottled LPG Regulator
OEM China JYT0.6-1/2 Bottled LPG Regulator | Quality Suppliers from Leading Factory
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OEM China GT-AT0637 Wireless Smart Pressure Monitor
OEM China GT-AT0637 Wireless Smart Pressure Monitor – Top Quality from Trusted Sources
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OEM JB-MK-AT2042X Interlock Control Box
OEM JB-MK-AT2042X Interlock Control Box Supplier, Manufacturer
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High-Quality JT-AT2006 Series Household Gas Detector
High-Quality JT-AT2006 Series Household Combustible Gas Detector Manufacturers
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High-Quality GTYQ-XP4000 Explosion Proof Combustible Gas Detector
High-Quality GTYQ-XP4000 Explosion Proof Combustible Gas Detector Suppliers
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OEM GTYQ-AT0502 Explosion Proof Combustible Gas Detector
OEM GTYQ-AT0502 Explosion Proof Combustible Gas Detector Manufacturer, Factory
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OEM JB-TB-AT2020S Gas Detector Controller
OEM JB-TB-AT2020S Gas Detector Controller Supplier, Factories
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