Explore our industrial safety lineup featuring robust manufacturing direct from our CNAS-certified factory.
The 1-inch National Pipe Thread (NPT) standard is the backbone of commercial fluid and gas mechanics globally. From pressure regulation stations to automated emergency shut-offs, 1 NPT valves provide the perfect cross-sectional area to handle high flow rates without introducing excessive pressure drops. Their standardized taper-threaded design ensures a leak-free mechanical seal when paired with high-tensile piping compounds, satisfying the most stringent mechanical integrity demands.
Global demand for intelligent, explosion-proof solenoid valves has grown exponentially. Industries ranging from food processing to petro-refining rely on the specific flow coefficient (Cv) that a 1 NPT valve offers. By implementing precision-cut NPT threads, manufacturers eliminate cross-threading issues, simplify site maintenance, and ensure compatibility with international process piping standards.
Our 1 NPT valve body geometry is structurally optimized to minimize internal turbulences, allowing maximum flow efficiency and consistent performance across varying pipeline pressures.
Certified Ex d IIC T6, the flameproof enclosures of our integrated gas solenoid valves guarantee ignition containment, preventing secondary atmosphere flare-ups.
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 as CE, 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.
How our 1 NPT gas solenoid valves and detector solutions adapt to high-risk environments globally.
Deployed in municipal pipeline junctions, refineries, and pressure-regulating stations. The 1 NPT valve acts as a rapid shut-off point triggered directly by control loops during volatile pressure spikes or organic gas leaks.
Essential for school campuses, manufacturing campuses, and central heating facilities. Integrating the 1 NPT valve with our JB-MK-AT2041X Interlock Control Box ensures that gas feeds cut off immediately upon detection of carbon monoxide or hydrocarbon build-ups.
Within high-temperature annealing furnace controls, our NPT-threaded gas solenoid valves ensure gas distribution stays stable and shuts down safely in under 0.5 seconds if process parameters fail.
Operating dual massive manufacturing campuses in Chengdu and Deyang, Xinhaosi has developed a highly verticalized supply chain. Unlike standard assemblers, we maintain absolute control over the entire production cycle. This includes raw brass ingot evaluation, CNC high-precision valve body machining, solenoid coil winding, and rigorous testing within our CNAS-accredited laboratory.
Our localized supply chain ecosystem ensures we remain immune to component shortages. By sourcing high-quality raw metals and explosion-proof electronic components locally, we guarantee consistent pricing structures and fast lead times for bulk OEM contracts globally.
| Parameters | Xinhaosi 1 NPT Valve Specifications |
|---|---|
| Body Material | Forged Brass / Carbon Steel / CF8M Stainless Steel |
| Thread Standard | 1 Inch NPT (ANSI/ASME B1.20.1) |
| Working Medium | Natural Gas, LPG, Town Gas, Non-corrosive Fluids |
| Closing Time | < 0.5 Seconds (Electrically Triggered) |
| Explosion Proof | Ex d IIC T6 Gb (Integrated Enclosure) |
| Protection Class | IP65 / IP67 Weatherproof rating |
A history of innovation, growing from a regional startup to an international gas safety authority.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarm & fire fighting products.
● Started gas safety valve production.
● Expanding on OEM business.
● Moved to the office building in Longtan industrial park.
● 10 million pcs gas detector sales achieved.
● Moved into Chengdu factory building.
● Completed sales & service network across China.
● Launched fire power monitoring system products.
● Self-developed IoT platform launched.
● Launched fire automatic alarm, emergency lighting, and evacuation systems.
● Obtained high-tech enterprise certificate.
● Qualified official supplier of China’s top 5 gas suppliers.
● Started Deyang factory construction.
● Established the Petrochemical & International Business Division.
● Awarded the title of Sichuan Provincial Technology Center.
● Deyang factory construction completed and operation started.
● Launched urban gas pipeline network monitoring products.
● Launched wireless detection products.
● Launched AI safety valve products.
Driving the digital transformation of industrial safety and intelligent fluid dynamics.
Our upcoming 1 NPT AI safety valves will integrate real-time flow and coil temperature diagnostics. Utilizing localized microcontrollers, the valves will run edge-computing algorithms to predict mechanical seal wear and coil degradation before failures occur, reducing pipeline downtime by over 30%.
To eliminate expensive signal wiring in complex installations, we are building wireless communication modules directly into our valve actuator enclosures. These will seamlessly link with our combustible gas detectors to form mesh safety grids in massive refining zones.
Deploying gas safety systems globally requires strict adherence to localized directives. Whether it's satisfying the ATEX directive in Europe, Class I Division 1 zoning requirements in North America, or Chinese domestic standards, Xinhaosi provides certified, traceable compliance documentation.
Every batch of our 1 NPT valves is issued with a calibration report traced to our CNAS-accredited laboratory under the ILAC-MRA framework. This ensures that when the valves are inspected by local hazard control officers or insurance adjusters, certifications are recognized immediately, mitigating project approval delays.
Furthermore, our global distributor and support network offers localized field commissioning, on-site diagnostics, and system integration services. We cooperate closely with engineering procurement companies (EPCs) to write and adapt functional safety programs that integrate our valves with existing Distributed Control Systems (DCS) or safety PLC grids.
Xinhaosi's engineering processes are structured to meet global compliance audits, maintaining:
Providing technical answers to common queries regarding 1 NPT solenoid valves and gas security systems.
NPT (National Pipe Thread) is characterized by a 60° thread angle and flat crests/roots, primarily utilized in North America and standard international gas installations. It creates a tight seal by mechanical interference when tightened. BSPT uses a 55° thread angle with rounded peaks and valleys. Using NPT ensures total compatibility with standard ANSI/ASME piping specifications, preventing leakage in high-pressure gas transport.
A Normally Opened (NO) gas solenoid valve, like our XF5III Series, remains open during normal operating conditions, allowing uninterrupted gas flow without consuming electrical power. When a gas leak is identified by detectors (such as the GTYQ-AT0505/d), the controller sends an electrical pulse to the valve. The valve's coil generates a magnetic force, pulling the internal plunger down to shut off the gas stream. The valve then locks mechanically and will only reopen via manual reset, ensuring that gas flow cannot resume until the leak source is addressed and cleared.
Our CNAS laboratory carries out functional tests under ISO/IEC 17025 regulations. This includes Helium leakage diagnostics, shell pressure integrity validation up to 1.5 times the maximum rated operating limits, ambient thermal cycling testing (-40°C to +80°C), response speed tracking, and electrical insulation tests on the solenoid actuator coils.
Yes. Our valves and control modules (such as the JB-MK-AT2041X) support standard industrial protocols including Modbus RTU, dry-contact relay signals, and 4-20mA analog loops. This allows them to integrate into safety instrumented systems (SIS) and distributed control systems (DCS) globally.
Explore our high-performance controllers, shut-off valves, and explosion-proof gas detectors.
