OEM 1 Inch Gas Shut Off Valve Manufacturers & Manufacturer

Precision Engineering, Fast Response Solenoid Cut-off, and Extreme Environmental Reliability for Global Industrial & Urban Gas Safety Systems.

Product Showcase

Leading Gas Detection & Control Hardware

OEM JB-TB-AT2020SE Gas Detector Controller

OEM JB-TB-AT2020SE Gas Detector Controller

View Details
High-Quality Explosion Proof Combustible Gas Detector GTYQ-AT0602A

Explosion Proof Combustible Gas Detector GTYQ-AT0602A

View Details
High-Quality GTYQ-AT0501 Explosion Proof Combustible Gas Detector

GTYQ-AT0501 Explosion Proof Combustible Gas Detector

View Details
High-Quality China Gas Detector Controller JB-TB-AT2020SE

China Gas Detector Controller JB-TB-AT2020SE

View Details
OEM China AT0321X / AT0322X Output Device

OEM China AT0321X / AT0322X Output Device

View Details
OEM GTYQ-XP3000 Explosion Proof Gas Detector

OEM GTYQ-XP3000 Explosion Proof Gas Detector

View Details
OEM FDG-X304SE Intelligent Data Gateway

OEM FDG-X304SE Intelligent Data Gateway

View Details
OEM China Suppliers Factory AT0635 Series Wireless Smart Pressure Monitor

AT0635 Series Wireless Smart Pressure Monitor

View Details
Technical Whitepaper

Engineering Principles of 1-Inch Gas Shut-Off Valves

Electromagnetic Execution & Fluid Dynamics

A 1-inch gas shut-off valve relies on optimized fluid dynamics and electromagnetic trigger response. Operating at millisecond speeds, our solenoids use precision-wound copper coils (Class H insulation, rated up to 180°C) that instantly generate the magnetic force required to release the valve's mechanical lock pin when triggered by an external controller.

  • Optimized Flow Coefficient (Cv): Engineered internal contours achieve a Cv exceeding 12.5, reducing pressure drops across the valve under maximum continuous flow.
  • Zero-Pressure Startup: Direct-acting piston mechanism guarantees reliable closing even under zero differential line pressure.
  • Low Energy Consumption: Impulse excitation requires minimal electrical output, reducing thermal load on continuous-duty systems.

Corrosion-Resistant Castings & NBR/FKM Sealing

In natural gas distribution and petrochemical processing, exposure to sour gas (containing hydrogen sulfide) and high humidity causes rapid galvanic corrosion. As an OEM manufacturer, we construct our valve bodies from cast aluminum alloy, hot-forged brass, or cast 316 stainless steel.

  • Resilient Elastomer Sealing: FKM (Viton) and low-temperature NBR compounds prevent gas bypass down to -30°C.
  • Rugged Exterior Protection: Electrophoretic coating or anodizing exceeds 240 hours of salt spray testing (ISO 9227).
  • Explosion-Proof Design: Encapsulated coil casings prevent ignition in Class I, Division 1 hazardous environments.

Integration with Safety Instrumented Systems (SIS)

Modern facilities connect shut-off valves directly into integrated industrial safety networks. The 1-inch valve functions as the final control element in a Safety Instrumented Function (SIF). It accepts shutdown signals from gas controllers (such as the JB-TB-AT2020SE) to isolate fuel lines instantly.

  • SIL 2 Certified Architecture: Safety Integrity Level evaluation confirms a low Probability of Failure on Demand (PFD).
  • Dual Feedback Indicators: Optional mechanical micro-switches or inductive proximity sensors provide remote valve position status.
  • Manual Reset Mechanism: Manual intervention is required to open the valve after an emergency trip, preventing accidental restarts.
Supply Chain & Manufacturing Excellence

Leveraging China's Advanced OEM Ecosystem for Gas Infrastructure

Establishing reliable safety infrastructure requires balancing strict compliance with commercial feasibility. Our state-of-the-art Chinese manufacturing facilities offer unique cost structures, material sourcing advantages, and vertically integrated engineering teams. By combining domestic raw material supply chains with advanced CNC machining, we offer fast delivery times without compromising safety margins.

From rapid casting prototyping to specialized surface treatments, we control the entire process in-house. Our automated testing labs subject every 1-inch gas shut-off valve to high-pressure pneumatic tests, bubble leak detection, and solenoid response profiling before delivery. This thorough approach makes us the preferred OEM partner for gas safety equipment worldwide.

Explore OEM Capabilities
Precision Gas Valve Manufacturing Facility
Quality Metrics & Verification

Tested Beyond Industry Standard Thresholds

20+
Years Engineering Experience
<0.3s
Emergency Shut-Off Speed
100%
Pneumatic Leak Tested
SIL 2
Functional Safety Rating
Xinhaosi Next-Gen Safety Technology
Technology Visionary

X Represents the Unknown Risks & The Next-Gen Safety Technology

X is... We utilize advanced electronic detection technology to make unknown gas leak risks clear and visible.

Founded in 2003, Xinhaosi is one of the most influential and reliable brands in gas safety industry. We provide customer-focused products and services to safeguard the safe operation of every factory, the comfort of every city, the peace and happiness of every home. Powered by cutting‑edge production systems and technology, we deliver more advanced, intuitive, and precise gas safety solutions for shaping a safer future world.

Explore Safety Systems
Localized Applications

End to End Solutions for Total Safety

Industrial Gas & Flame Detection Systems

Industrial Gas & Flame

High-reliability detection and shutdown networks for refineries, chemical storage, and heavy manufacturing sites.

Household & Commercial Gas Detectors

Household & Commercial

Compact, consumer-friendly gas monitors and shut-off valves for residential complexes and commercial kitchens.

Industrial & Household Gas Solenoid Valves

Gas Solenoid Valves

Highly responsive 1-inch and multi-size electro-mechanical solenoid valves that stop leaks at the source.

Urban Gas Distribution & Monitoring

Urban Gas Distribution

Smart city integration, pressure monitoring, and remote district regulation for gas companies.

Collaborations

Our Partners

Stay Informed

Latest Updates & Industry News

  • Xinhaosi Launches New Handheld Uncooled Infrared Gas Leak Detector

    Xinhaosi Launches New Handheld Uncooled Infrared Gas Leak Detector

    Xinhaosi Electronic Detection Technology Co., Ltd. officially launched its new Handheld Uncooled Infrared Gas Leak Detector, featuring dual-technology fusion, ultra-fast response, and long-distance non-contact detection to enhance safety and efficiency in petrochemical, refrigeration, natural gas and industrial safety scenarios.

    May 09, 2026
  • XINHAOSI Participates in Western China Cross-Border E-Commerce Expo

    XINHAOSI Participates in the 5th Western China Cross-Border E-Commerce Expo

    XINHAOSI recently participated in the 5th Western China Cross-Border E-Commerce Expo held in Chengdu. The event brought together cross-border e-commerce platforms, global buyers, manufacturers, and supply chain companies, creating new opportunities for international business cooperation.

    May 08, 2026
  • Sichuan-Indonesia Industry Matchmaking Conference

    XINHAOSI Participates in 2026 Sichuan (Chengdu) – Indonesia Industry Matchmaking

    XINHAOSI recently participated in the 2026 Sichuan (Chengdu) – Indonesia Industry Matchmaking Conference held in Chengdu. The event gathered enterprises and industry representatives from China and Indonesia to strengthen industrial cooperation and explore new business opportunities in Southeast Asia.

    May 08, 2026
Technical FAQ

1-Inch Gas Shut-Off Valve Q&A

What is the primary function of a 1-inch gas shut-off valve?

A 1-inch gas shut-off valve is an electro-mechanical safety device installed in fuel gas pipelines. When connected to control panels or leak detectors, it instantly cuts off the gas flow (usually in under 0.3 seconds) using a solenoid mechanism, preventing fires, explosions, or carbon monoxide accumulation.

How does an emergency solenoid valve differ from a standard utility valve?

Unlike standard motorized or manual valves, emergency solenoid valves feature a latching mechanism. They are designed to trip closed instantaneously when receiving an electrical pulse from a controller. They remain locked closed until manual intervention resets the valve, ensuring operations do not resume while a leak is still present.

What certifications are required for hazardous environments?

For volatile, hazardous atmospheres, valves must have explosion-proof coils with Ex d or Ex mb certifications under ATEX, IECEx, or local standards. For high-reliability safety systems, look for valves with SIL 2 (Safety Integrity Level) certification.

Do you offer customized OEM services for international markets?

Yes. As a manufacturer established in 2003, Xinhaosi provides complete OEM customization. This includes custom thread types (NPT, BSPT, G-threads), body materials (anodized aluminum, brass, stainless steel), custom coil voltages (12VDC, 24VDC, 110VAC, 220VAC), and custom co-branding packaging.

Why is a manual reset mechanism required after a shutdown?

Manual reset is a fundamental safety standard (EN 161). It ensures that the pipeline system is manually inspected and repairs are completed before fuel gas flow is restored. This prevents gas from flowing back into rooms where appliances may have been left open.

What is the typical lifespan of these solenoid valves?

Our high-performance 1-inch solenoid valves are designed for over 100,000 switching cycles and an operational lifespan of 10 to 15 years, depending on the environment, gas composition, and regular testing schedules.

Safety Control Portfolio

Industrial Grade Combustion Controls

High-Quality GTYQ-AT0505 Explosion Proof Combustible Gas Detector

GTYQ-AT0505 Explosion Proof Combustible Gas Detector

View Details
High-Quality China XP4000 Explosion Proof Gas Detector

XP4000 Explosion Proof Oxygen, Toxic, and VOC Detector

View Details
OEM AT2031X Low Voltage Power Box

OEM AT2031X Low Voltage Power Box Manufacturer

View Details
OEM Explosion Proof Combustible Gas Detector GTQ-XP4000

OEM Explosion Proof Combustible Gas Detector GTQ-XP4000

View Details
OEM Explosion Proof Combustible Gas Detector GTYQ-AT0502

OEM Explosion Proof Combustible Gas Detector GTYQ-AT0502

View Details
High-Quality China AT0421X Input Device

High-Quality China AT0421X Input Device

View Details
OEM China JB-TB-AT2020F Gas Detector Controller

OEM China JB-TB-AT2020F Gas Detector Controller

View Details
High-Quality JT-AT2008 Series Household Combustible Gas Detector

JT-AT2008 Series Household Combustible Gas Detector

View Details