Engineered to link seamlessly with our 3/4" normally closed solenoid valves for automated emergency shutdown.
Understanding critical components, materials selection, and electronic trip parameters for heavy industrial applications.
Designed as a critical safety feature. In the absence of an electrical signal or during power loss, the valve remains closed, preventing any accidental fluid or gas transit. Opens quickly upon electrical excitation.
A 3/4-inch NPT or G thread size provides the perfect fluid dynamics compromise for domestic meter boxes and industrial manifolds, ensuring low pressure drop and high CV flow coefficient.
Engineered for hazardous atmospheres. Coils are encapsulated to prevent spark generation, conforming to international Ex d IIC T6 standards for petrochemical safety environments.
For design engineers and procurement departments, matching the exact valve parameters to pipeline pressure is vital to avoid valve chatter or failure to seal.
| Specification Metric | Standard Values | Engineered Options (OEM Custom) |
|---|---|---|
| Valve Body Material | Forged Brass / Aluminum Alloy | SUS 304 / SUS 316 Stainless Steel (Corrosive Environments) |
| Operating Voltage | 12VDC, 24VDC, 220VAC | 110VAC, 24VAC (Custom coil windings & power ratings) |
| Pressure Range | 0 - 50 kPa / 0 - 1.0 MPa | Ultra-high pressure class, zero-differential pilots |
| Seal Elastomer | NBR (Nitrile Rubber) | Viton (FKM) / EPDM for high-temp or chemical resistance |
| Response Speed | < 1 second (Instant shutoff) | Ultra-fast response (< 0.5s for emergency hazard suppression) |
Chengdu Factory & Office
Deyang Factory
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.
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," membership in the China Fire Protection Association, and acts as 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.
How multinational gas companies, municipal pipelines, and heavy industries deploy 3/4" normally closed solenoid valves.
For safety reasons, municipal pipeline operators globally mandate automated cutoff valves at gas distribution stations and residential supply points. A 3/4" valve is the standard interface for sub-manifolds, demanding longevity, low power consumption, and corrosion-resistant coatings.
Steel production, kiln firing, and chemical processing require high-duty cycle valves that shut off fuel instantly in the event of flameout or emergency shutdown signals. Our OEM valves guarantee tight shutting capabilities up to 100,000 continuous cycles.
Smart factories demand direct linkage between combustible gas detectors, PLC logic systems, and solenoid shutdown valves. Our coils support multiple fieldbus signaling frameworks and low current triggers for seamless remote operation.
International building standards necessitate interlocking the kitchen exhaust hoods and gas leak alarm panel directly with the main supply valve. Our 3/4" NC valve is engineered to reset only manually after an emergency trip, providing secondary safety assurance.
From passive mechanical safety to connected AI-driven active diagnostics.
Standard solenoid valves operate on a binary on/off system. However, next-generation industrial systems require feedback and health tracking. Xinhaosi is pioneering developments in AI-equipped safety valves featuring:
Over two decades of dedicated R&D, scaling up production, and protecting industrial and residential operations.
Answers to engineering, chemical resistance, and international logistics questions regarding our solenoid valves.
Ensure complete system synergy with our field-proven gas monitoring and control solutions.
