High-performance gas detectors, safety valves, and communication hubs designed for hazardous area networks.
The convergence of mechanical precision with advanced IoT telemetry is redefining standard pipeline component engineering.
Modern 2-inch NPT pipeline junctions and safety shut-off valves are shifting away from passive mechanical structures. The integration of IoT sensors, real-time pressure transducers, and explosion-proof diagnostic loops ensures that operations can predict leaks and valve failures before they occur.
Harsh conditions demand next-generation metallurgies. B2B projects now specify specialized coatings, stainless steel (SS316L), and corrosion-resistant copper-alloy castings to withstand corrosive elements like hydrogen sulfide (H₂S) and maximize component life under high pressure.
Globalized networks mandate strict compliance. Modern 2-inch NPT components, whether valves, sensors, or safety controllers, must satisfy explosion-proof benchmarks such as SIL 2/3 and ATEX/IECEx certifications, guaranteeing safety in Zone 1 and Zone 2 hazardous areas.
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.
Chengdu Factory & Office
Deyang Factory
Ensuring complete alignment with national piping standards, pressure variables, and thread dimensions.
The National Pipe Taper (NPT) standard is a U.S. national standard for tapered threads used on threaded pipes and fittings. A 2-inch NPT thread features an outer diameter of approximately 2.375 inches (60.3 mm) with 11.5 threads per inch (TPI). In high-pressure gas distribution and industrial installations, even micro-deviations can result in catastrophic volatile leaks. Partnering with an OEM manufacturer that adheres to strict ASME B1.20.1 standards is crucial for plant safety and compliance.
| Specification Parameter | Standard Metric / Value | Target Applications | Compliance Label |
|---|---|---|---|
| Nominal Pipe Size (NPS) | 2 Inch (50 mm DN) | Medium to high flow pipelines | ASME B1.20.1 |
| Threads Per Inch (TPI) | 11.5 TPI | Pressure-tight tapered pipe joints | NPT Standard |
| Standard Working Pressure | PN10 / PN16 / Class 150 | Natural gas, LPG, vapor transport | ISO 228-1 Option |
| Explosion Protection Level | Ex d IIC T6 Gb / Ex tb IIIC T80°C Db | Zone 1 & Zone 2 petrochemical fields | SIL 2 / CE / ATEX |
| Response Shut-off Speed | < 1 Second | Emergency shut-off triggered by leak detection | ISO 9001 Tested |
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," is a member of the China Fire Protection Association, and serves 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.
End-to-end framework layout showcasing how 2-inch NPT interfaces integrate with enterprise gas systems.
In corrosive environments containing volatile gases, our 2-inch NPT solenoid safety valves integrate directly into major pipeline manifolds, working in tandem with explosion-proof detectors to perform millisecond automatic shut-offs when abnormal concentrations are detected.
High-volume city gas distribution nodes rely on consistent pressure monitoring. By standardizing connections to 2" NPT, municipal systems can use our AI-powered safety valves to measure real-time volumetric flows and isolate pipeline sub-sections dynamically.
For steel mills, pharmaceutical cleanrooms, and food processing complexes, our solutions provide safety network configurations. These systems allow gas detection units, low-voltage power boxes, and shut-off valves to communicate via digital Modbus or wireless protocols.
Two decades of innovation, reliability, and steady global growth.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarms and fire fighting products.
● Started gas safety valve production.
● Expanded the OEM business.
● Moved to the new office building in Longtan Industrial Park.
● Reached 10 million units of gas detector sales.
● Moved into the new Chengdu factory building.
● Completed a comprehensive sales and service network across China.
● Launched fire power monitoring system products.
● Launched self-developed IoT platform.
● Introduced automatic fire alarm, emergency lighting, and evacuation systems.
● Obtained High-Tech Enterprise certification.
● Qualified as an official supplier to China's top 5 gas suppliers.
● Commenced Deyang factory construction.
● Established the Petrochemical & International Business Division.
● Awarded the title of Sichuan Provincial Technology Center.
● Completed Deyang factory construction and started operations.
● Launched urban gas pipeline network monitoring products.
● Launched wireless detection products.
● Introduced AI safety valve products.
Pioneering tomorrow's smart gas safety networks and high-precision fluid controls.
Future releases will feature on-chip machine learning algorithms embedded directly within detection units. These components will process raw sensor data locally to differentiate between minor transient baseline shifts and true, gradual leaks.
We are researching micro-structured modifications to standard 2-inch NPT surfaces. This layout reduces friction coefficients during installation while maintaining robust mechanical seals, even under extreme pressure cycles.
As the global energy mix transitions toward green hydrogen (H₂), our engineering pipeline focuses on creating valve components certified for high-pressure hydrogen storage and delivery. These models feature zero-leakage seals to prevent hydrogen embrittlement.
Technical and commercial inquiries regarding our OEM 2-inch NPT products and gas safety technologies.
Our 2-inch NPT valves are manufactured in high-grade brass, cast iron, and stainless steel (SS304/SS316) options. Material selection depends on the operating medium, target environment (e.g., marine or high humidity), and chemical exposure parameters.
Xinhaosi's patented flow-monitoring solenoid valve captures real-time data on volumetric movement. By analyzing deviations, it detects internal leakage, blockages, or atypical flows. This setup enables predictive maintenance and reduces overall machinery downtime by more than 30%.
Yes. Our core product portfolio carries international approvals, including CE, SIL certifications, and national explosion-proof compliance marks. Our internal laboratory is also fully accredited by CNAS, operating under strict ISO/IEC 17025 standards to ensure traceability and global acceptance.
Yes, we provide flexible OEM and ODM services. While 2-inch NPT (National Pipe Taper) is standard for U.S. and Canadian projects, we also manufacture BSPT (British Standard Pipe Taper) and G-thread (parallel) versions to match localized mechanical systems.
Our solenoid valves are optimized with high-performance electromagnetic coils and fast-release internal springs, achieving a reliable shut-off response time of under one second. This rapid containment mitigates explosive risks in industrial workspaces.
We offer structured warranty agreements for global enterprise contracts. This coverage is backed by our dedicated technical support team, calibration audits through our CNAS lab, and complete documentation packages (including material certificates and explosion-proof reports).
Sensors, controllers, and monitoring terminals to complete your safety setup.
