In modern gas safety networks and fluid dynamics engineering, the term "4 Solenoid Valve" generally describes two high-reliability industrial valve structures: 4-inch (DN100) high-capacity emergency shut-off valves and 4-way pilot solenoid valves. Both variants are critical components in automatic process safety shutoff loops. Xinhaosi manufactures these systems to the highest standards, ensuring instant shut-off capability when coupled with advanced combustible gas detectors.
A high-quality 4 solenoid valve system must perform flawlessly under varying pressures and extreme environments. Its electrical actuator must actuate within fractions of a second upon receiving signals from gas monitoring controllers. Integrating advanced metallurgy, corrosion-resistant NBR or Viton seals, and specialized explosion-proof coil housings allows these valves to prevent catastrophic events in high-pressure distribution pipelines and manufacturing lines.
Engineered to close automatically when power supply is interrupted or when an alarm signal is triggered, ensuring zero downstream gas leakage.
Advanced electrical coils utilize energy-efficient holding currents, minimizing thermal stress and maximizing valve service life.
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.
Chengdu Factory & Office Hub
Deyang Factory Production Base
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 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.
Industrial sourcing agents require valves that guarantee uninterrupted operation, fail-safe mechanisms, and international regulatory alignment. Discover how Xinhaosi solves global procurement challenges.
Meeting European CE, SIL (Safety Integrity Level) rating structures, ATEX, and UL requirements is non-negotiable. Sourcing agents rely on Xinhaosi because our CNAS calibration guarantees products perform safely within explosive atmospheres.
Procuring valves that withstand sour gas, corrosive high-sulfur hydrocarbons, and extreme thermal ranges is crucial. Our 4 solenoid valves leverage high-strength cast alloys and robust sealing matrices (Viton/FKM) to eliminate physical degradation.
Modern process plants seek intelligent telemetry. Integration with wireless smart pressure monitors and remote gas detectors allows our solenoid valves to transmit diagnostic updates, preventing downtime through predictive maintenance models.
Solenoid valves are the last line of defense in safety system loops. Xinhaosi supplies customized assemblies for multi-scale industrial infrastructures, guaranteeing instantaneous execution when hazard levels surge.
In explosive hydrocarbon settings, our explosion-proof pilot-actuated valves manage media flow with absolute seal integrity, preventing critical leaks.
Installed at strategic city gate stations, our automatic gas shut-off valves immediately isolate pipeline sections if pressure anomalies occur.
Designed to handle high operating cycles and demanding thermal environments, managing combustible gas lines to large smelting systems.
By combining our GT-AT0636 Series Wireless Intelligent Terminals with the Pipeline Gas Automatic Shut-off Valves, engineers can deploy a self-healing grid network. If downstream detectors register combustible concentrations, the cloud server commands the valve to seal within 0.5 seconds without requiring manual operations.
From a safety start-up to a global industrial brand, explore Xinhaosi’s two decades of engineering development.
Established in April 2003. Launched our first-generation gas leakage detectors and fire-fighting emergency shut-off devices, entering the domestic utility sector.
Initiated gas safety solenoid valve production. Expanded OEM business and moved headquarters to the Longtan Industrial Park to meet rising market demand.
Achieved sales milestone of 10 million gas detectors. Relocated to our primary Chengdu factory and launched fire power monitoring systems nationwide.
Developed and deployed our cloud IoT safety platform. Qualified as an official supplier to China's top 5 gas groups. Achieved national high-tech status.
Began construction of the Deyang Factory. Created dedicated Petrochemical and International Business Divisions to serve global industrial clients.
Commenced full operations at the Deyang facility. Rolled out smart urban pipeline monitoring devices, wireless detectors, and AI-enabled shut-off valves.
Solenoid valves are evolving beyond simple mechanically activated switches. At Xinhaosi, we are designing the next generation of smart valves to serve as active diagnostic endpoints within broader safety ecosystems.
DN100 / 4-Inch High-Pressure Cast Iron or Steel construction.
Embedded sensors track flow rate, upstream/downstream pressure, and temperature data.
Transmits health data and telemetry directly to the central control station.
Securing safety valves requires reliable logistics and responsive technical assistance. Xinhaosi provides global distribution support through local service networks and direct engineering consultations.
We work closely with certified local distributors and service partners to assist with installation, calibration, and commissioning. This ensures every 4 solenoid valve conforms to both national requirements and site-specific plant safety protocols.
Our CNAS-accredited calibration laboratories offer traceable certification documentation, expediting system inspections and approvals by regulatory safety officers in domestic and export markets.
Review engineering analyses and solutions to common questions regarding our 4 solenoid valves and integrated systems.
