Engineered to withstand extreme environments, our top-tier catalog includes low voltage power boxes, explosion-proof detectors, and high-sensitivity alarm systems.
Whitepaper analysis of multi-gas control manifolds, solenoid flow control integration, and mechanical reliability standards.
Modern industrial plants require complex gas routing, gas mixing, and localized shut-off capabilities. A 4 gas valve system—often configured as a 4-way solenoid control system, multi-channel manifold, or quick-cutoff emergency shutoff array—manages the flow of key process and combustible gases. These typically include natural gas (methane), LPG (propane/butane), hydrogen, and inert purging agents like nitrogen.
To prevent localized leakage and pressure drops, these valves utilize double-cast brass or stainless steel bodies certified to tolerate pressures exceeding 100 kPa. Our unique integration combines pneumatic pressure balancing with rapid electromagnetic coils, boasting a closure response time of less than 0.3 seconds during emergencies.
IP65 and IP67 dust/waterproof ratings, operating under extreme ambient temperatures from -40°C to +80°C.
Patented instant shut-off mechanical trigger activated by electrical pulses or manual pressure release.
Equipped with micro-switches providing real-time feedback on open/close states to Central Control Rooms.
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.
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.
State-of-the-Art Production Centers:
Focusing on software development, digital IoT integrations, and overall safety planning architectures.
Our primary manufacturing plant executing hardware assembly, die casting, calibration, and high-pressure stress test protocols.
Recognized globally for quality assurance and compliance with domestic and international safety standardizations.
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%.
Our in-house testing center conforms strictly to ISO/IEC 17025. This ensures all gas safety valves, sensors, and alarm components are fully calibrated, traceable, and ready to pass international border audits.
Accreditation Standards Met:
ISO/IEC 17025 Testing & Calibration Laboratories
Over two decades of continuous scaling, innovation, and global expansion in the gas detection and safety sectors.
Why industrial procurement departments choose Xinhaosi as their central gas safety partner.
Global gas safety deployment demands rapid lead times, extreme batch-to-batch consistency, and compliance with varying customs clearance testing. By locating our key manufacturing hubs in Sichuan Province (Chengdu and Deyang), we leverage China's most robust industrial raw material networks. Our brass casting, coil winding, PCB assembly, and sensor calibrations are performed under one vertical organization.
This localized cluster allows us to maintain stable production pricing and buffer raw materials against volatile global supply chain shocks. We handle tens of millions of products annually, guaranteeing continuous shipping schedules for massive infrastructure developments, commercial pipelines, and municipal utility companies.
Our automation integration reduces manual handling steps by 85% compared to legacy competitors. From the CNC machinery cutting valve threads to the automated helium leak testers, every single valve undergoes pressure decay testing to achieve zero defects before dispatch.
From design blueprinting and brass casting to the final software flash on internal logic controllers, we minimize reliance on outside parts providers.
Flexible manufacturing lines support customized body markings, specific thread types (NPT, BSPT, Flanged), and tailored electrical connector assemblies.
All safety valves are tested on-site within our accredited lab, preventing costly custom compliance hold-ups at European and American ports.
Custom safety solutions engineered to conform directly with regional safety regulations and pipeline standards.
In accordance with NFPA 96 and local gas regulation rules in the EU, commercial cooking facilities must have linked, instant-cutoff gas solenoid valves tied directly to fire suppression triggers. Our 4 gas valves connect with local ventilation hoods, cutting off the gas supply within milliseconds of a thermal link pop.
Handling explosive vapors requires strict explosion-proof certifications (IECEx / ATEX). Our Class I Div 1 and Zone 1 explosion-proof solenoids are built to contain internal sparks, guaranteeing safe operation in paint spray booths, refineries, and heavy chemical processing zones.
Integrated gas distribution systems rely on wireless IoT pressures monitoring. Combining our valves with wireless telemetry units allows utility providers to check valve integrity remotely, execute periodic tests, and shut off sections during localized tremors or ground shifts.
In semiconductor and pharmaceutical manufacturing, gas purity and absolute sealing are critical. We produce specially cleaned, residue-free valve bodies that avoid contaminating process lines carrying high-purity nitrogen, forming gas, and hydrogen.
Compare raw operational statistics of our industrial gas safety solenoid valve series.
| Available Sizes | DN15 (1/2") to DN300 (12" Flanged) |
| Medium Compatibility | Natural Gas, Methane, LPG, Propane, Nitrogen, Inert Gases |
| Closing Time | < 0.3 Seconds (Emergency Cutoff) |
| Explosion Protection | Ex d IIC T6 Gb / Class I Div 1 Approved |
| Operating Pressure | 0 - 100 kPa (Medium Pressure options up to 0.6 MPa) |
| Sealing Grade | Class VI (Bubble tight bubble leak verification) |
| Valve Material | Forged Brass, Die-Cast Aluminum, WCB Carbon Steel, SS316 |
If your infrastructure requires specific pressure handling characteristics, specialized valve coatings, or high-temperature coil tolerance, speak directly with our engineering division.
We provide full custom mockups and digital simulations prior to initiating mass molding and forging toolings.
Connect with Xinhaosi OEM Engineers Today
Answers to technical, regulatory, and purchasing queries based on global industry feedback.
A "4 Gas Valve" setup typically refers to safety systems designed to manage up to four gas channels concurrently, or a 4-way direction control design for complex purging and pressure venting configurations. Standard single-port units only handle one flow line. Our multi-gas arrays allow modular installation, saving physical pipeline space and unifying electrical controls under a single bus system.
CNAS accreditation under ISO/IEC 17025 guarantees that the testing procedures, equipment calibration, and test data generated inside the Xinhaosi plant are universally trusted. Under the ILAC-MRA framework, our test reports are recognized by international safety groups, significantly simplifying local customs checks and municipal engineering permits in over 100 countries.
Traditional solenoid valves only act as open/close gates. Xinhaosi's patented design integrates dynamic internal sensors that measure flow rate changes directly inside the valve body. If an downstream line ruptures, the internal monitor detects the unexpected pressure drops and triggers a physical cutoff, stopping leaks before external gas sensors can even register ambient vapors.
Yes. Our low-temperature valve lines are certified to operate reliably down to -40°C. We use special low-temperature NBR/Viton seal compounds and dry electromagnetic coils designed to prevent condensation freezing, ensuring consistent spring rebound times during emergencies.
For ultimate safety, our emergency shutoff valves are "manual reset." Once closed due to a safety trip (alarm pulse or power loss), the valve will remain locked shut even if power returns or the alarm stops. A human operator must inspect the pipeline, resolve any leaks, and pull the reset knob manually to reopen flow, preventing accidental re-ignition of hazardous gases.
Yes. We offer coils rated for DC12V, DC24V, AC110V, and AC220V. This enables buyers to seamlessly integrate our products into existing industrial PLC systems, localized alarm control panels, or municipal electrical setups without requiring supplementary power converters.
Complete your facility's safety net with high-precision optical detectors and intelligent voltage controllers from our certified manufacturing floors.
