Explore our leading selection of industrial and residential monitoring controllers, gas safety valves, and combustible gas detector modules.
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" and "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.
A Comprehensive Industrial Guide to Fail-Safe Architecture, Compliance Standards, and Process Automation Applications.
A Normally Closed (NC) solenoid valve remains sealed in its de-energized state. Upon power loss or emergency system triggers, the internal electromagnetic field collapses, allowing an integrated spring mechanism to instantly snap the valve shut. This mechanical default state prevents dangerous fluid/gas progression without requiring secondary power reserves.
In explosive hazard mitigation, milliseconds matter. Our industrial NC gas valves feature rapid shut-off response times (typically under 1 second). Equipped with premium NBR or FKM elastomers and robust housing metallurgy, they prevent volatile gas escape during sudden seismic tremors or upstream pressure spikes.
Our solenoid coils are engineered for high-frequency operations and continuous duty cycles. Sealed within IP65-rated or explosion-proof cast aluminum enclosures, they tolerate intensive thermal dissipation without compromise. The encapsulated winding design limits core degradation, ensuring long-term functional safety.
SEO Insight & Information Gain: When sourcing "Normally Closed Valves," global procurement managers evaluate more than simple flow rates. They look for certified pressure boundaries, body materials (e.g., cast iron, aluminum alloy, forged brass), specific media compatibility (methane, LPG, butane, syngas), and functional safety integrity levels (SIL-2/SIL-3) to ensure regulatory compliance.
Modern industrial systems demand deep integration between mechanical components and smart monitoring networks. High-Quality Normally Closed Valves serve as the ultimate physical barrier against gas leak hazards, toxic emissions, and systemic pressure overloads. Key vertical markets include:
In Petrochemical & Refinery Complexes, toxic and flammable feedstocks are processed under extreme temperatures. A power outage or a sensor failure must trigger an immediate shut-off of the process line. High-quality normally closed valves, connected to SIL-certified gas detection control panels, close automatically the moment power to the solenoid is interrupted. This design forms an impenetrable barrier that isolates hazardous chemicals and prevents catastrophic environmental incidents.
Within Urban Gas Networks & Smart Cities, large-diameter gas solenoid valves are paired with digital pressure transmitters (such as the PMC-X602C) and seismic sensors. If pressure anomalies are detected downstream or if a seismic event occurs, the central monitoring panel cuts the power supply to the solenoid, triggering the normally closed valve to isolate fuel distribution across municipal sectors within milliseconds.
The global transition toward carbon neutrality and industrial automation has transformed the expectations for valve manufacturers. Solenoid valves are no longer isolated mechanical parts; they are critical nodes in the industrial Internet of Things (IoT). To maintain high levels of reliability across varying operating conditions, valves must meet strict regional standards, including ATEX (Europe), UL (North America), CE, and local gas safety codes.
Xinhaosi bridges the gap between high-volume manufacturing capabilities and customized regional compliance. By utilizing our CNAS-accredited testing facility (which operates in compliance with ISO/IEC 17025), we can simulate and verify valve performance across various pressure limits, media viscosities, and environmental conditions. This rigorous testing approach supports global market access and simplifies the integration process for international EPC (Engineering, Procurement, and Construction) companies.
Looking ahead, the development of industrial safety systems points toward predictive diagnostics and smart components. Xinhaosi is moving beyond basic open/close valves to develop integrated smart systems that combine safety, diagnostics, and communication:
By embedding micro-sensors directly within the solenoid housing, future valve iterations can report live internal temperature, coil resistance, and stroke cycle counts to predictive maintenance networks.
Eliminating extensive cabling expenses in large plants, wireless control interfaces allow gas detection controllers to securely command industrial solenoid valves through encrypted mesh networks.
To support emerging green hydrogen and carbon capture networks, we are expanding our use of specialized materials (such as SS316L and engineered polymer coatings) to handle corrosive gases and hydrogen embrittlement risks.
Over two decades of dedication to industrial quality, gas safety innovations, and smart factory expansion.
Technical answers to help system architects, procurement agents, and safety directors optimize site safety.
Explore our technical-grade solenoid valves, portable gas detectors, and emergency interlocking systems.
