Explore our premium grade residential and industrial gas detection safety units, designed to interconnect directly with safety solenoid valves for rapid-action protection loops.
We utilize advanced electronic detection technology to make unknown gas leak risks clear and visible.
Founded in 2003, Xinhaosi has spent more than two decades standing at the forefront of the gas safety industry. Our primary mission is to engineer and manufacture safety systems that operate flawlessly in critical moments. By merging high-precision sensor metrics with robust mechanical shut-off systems, we provide comprehensive industrial gas monitoring, toxic chemical leak detection, and urban pipeline fail-safe mechanisms that prevent hazards at the source.
Securing pipelines, industries, and commercial developments globally.
A technical guide to understanding mechanical fail-safe designs, sealing interfaces, electromagnetic actuation, and compliance structures in gas hazard isolation.
Industrial emergency shut-off valves utilize a critical semi-automatic concept. While the closure is executed instantly (in <1 second) by a strong spring return upon receiving an electrical pulse from a gas detector, the manual-reset design ensures that gas flow cannot be resumed until engineers inspect the facility, locate the leak, repair the line, and manually pull up the reset mechanism. This human-supervised protocol is standard for explosive gas lines.
The core vulnerability of solenoid valves lies within the valve seal. Our industrial shut-off valves feature specialized multi-layered elastomer compositions. For standard natural gas, hydrogenated methane, and LPG applications, high-density Nitrile Butadiene Rubber (NBR) seals prevent gas bypass down to -30°C. For corrosive media, sour gas, or high-temperature steam lines, Fluoroelastomer (FKM/Viton) options guarantee long-term elasticity and chemical degradation immunity.
Our solenoid components are cast inside rugged, explosion-proof casings that comply with ATEX and IECEx specifications (Ex d IIC T6 Gb classification). This means that even if combustible gases build up around the pipeline, any internal spark originating from the electromagnetic coil winding during activation or release is completely contained inside the flameproof housing, preventing external ambient ignition.
Combining detection intelligence, digital processing modules, and mechanical solenoid actuation to build robust multi-scenario safety loops.
In petrochemical refineries, paint shops, and processing plants, high-precision detection of volatile organic compounds (VOCs) and flammable gases is vital. Our heavy-duty gas safety loops utilize the XP4000P Explosion Proof Gas Detector combined with the XF3III Series Normally Opened Solenoid Valves. In case of leakage, the control board sends an electrical pulse to shut off the gas supply mains instantly before the lower explosive limit (LEL) is reached.
Large commercial properties, hotels, and multi-tenant apartments require continuous supervision. We deploy bus-type monitoring infrastructures using the JT-AT2004BII Household Bus-type Combustible Gas Detector. These loop systems connect dozens of detectors over RS-485 Modbus networks back to centralized management consoles. Integrated output modules like the AT0321X / AT0322X trigger localized gas solenoid valves in designated zones, minimizing downtime.
Managing city-wide gas mains requires robust distributed telemetry. Our solutions incorporate smart input modules (like the AT0421X) paired with outdoor-ready KT-XF5 Series Industrial Gas Solenoid Valves. Because these valves are dust-tight and waterproof (IP65 rated), they function in underground distribution shafts, handling pressure fluctuations and closing safety valves during seismic activities or sudden drop-offs.
For homes, simple installation and long-term reliability are key. High-quality detectors such as the JT-AT3068 or JT-AT2005 Series integrate built-in warning buzzers, visual indicators, and auxiliary relay terminals. These terminals link directly to domestic brass shut-off valves located behind gas meters. This active defense model isolates gas leaks locally at the kitchen mains before they accumulate, preventing fires.
At Xinhaosi, we run an advanced manufacturing facility optimized for high-volume, zero-defect production. Our modern machine shop uses multi-axis CNC machines to maintain tolerance thresholds down to the micron level for valve seats, plugs, and housings.
By integrating coil winding, assembly, sealing, and testing under one roof, we eliminate intermediate supply chain delays. Every gas detector housing, output interface, and solenoid coil undergoes rigorous testing before packaging.
Operating gas distribution infrastructure requires compliance with strict safety directives. We support global markets with localized engineering resources and certified hardware.
Our explosion-proof detectors and safety shut-off systems carry CE markings and comply with ATEX directives for Zone 1 and Zone 2 environments. This ensures our components meet the safety criteria required for chemical plants, commercial kitchens, and industrial buildings across Europe.
We supply high-efficiency safety solenoid valves that conform to UL 429 and FM standards for safety valves handling fuel gases. Coils are encapsulated and tested under extreme electrical loads to prevent local winding failure and maintain functional integrity.
To facilitate system integration, we provide comprehensive documentation, standard wiring drawings, and step-by-step startup guides. Our team works directly with engineering partners and distributors to customize voltage configurations (12VDC, 24VDC, 110VAC, or 220VAC) to match your local power supply.
Innovation in gas systems centers on smart connectivity, material changes for hydrogen mixtures, and reduced power consumption.
As cities blend hydrogen into gas networks, components must handle new physical demands. Hydrogen's light weight and small molecular structure increase the risk of gas leaks, and it can cause embrittlement in standard metals. Our development team is working on 316L stainless steel valve bodies and modified rubber seals to handle hydrogen mixtures safely up to 100% concentration.
Future safety solenoid valves will feature integrated sensors to monitor coil temp, current draw, and armature travel time. Real-time data from these sensors can flag issues like mechanical wear, sticking valves, or coil decay before a critical failure occurs, enabling scheduled preventative maintenance.
Standard solenoid valves draw continuous power to maintain state. Our upcoming range of bistable, permanent-magnet latching solenoid valves uses electric power only to transition between open and closed positions, keeping power usage down to a minimum.
A quick reference table summarizing the parameters and certifications procurement teams should evaluate when sourcing safety solenoid valves.
| Product Category | Key Specifications | Certifications Required | Typical Industrial Applications |
|---|---|---|---|
| Normally Opened Gas Valves (XF3III / KT-XF5) | DN15-DN150, cast aluminum/brass, manual reset, closing time < 1s | ATEX Ex d IIC T6, CE, ISO 9001 | Industrial boiler rooms, urban gas distribution networks, commercial kitchens |
| Explosion-Proof Detectors (XP4000P / GTYQ-AT0602) | Infrared, electrochemical, catalytic sensors; 4-20mA, RS-485 Modbus | IECEx, Ex d IIC T6, SIL 2 / SIL 3 | Petrochemical plants, solvent rooms, storage depots, chemical plants |
| Household Gas Alarms (JT-AT2004BII / JT-AT3068) | Methane/LPG dual-sensing, warning buzzer, relay contact out | EN 50194, CE, RoHS | Residential kitchens, residential apartments, hotel suites |
| Output/Input Modules (AT0321X / AT0421X) | Dry contact output, optoelectronic isolation, rail mounting | CE, EMC Directives | Central control panels, PLC automation loops, fire safety systems |
Get answers to common technical, compliance, and ordering questions from our engineering department.
We work with global engineering companies, municipal utilities, and gas suppliers to secure critical infrastructure projects worldwide.
Insights into our latest products, international exhibitions, and industrial gas safety innovations.
Xinhaosi Electronic Detection Technology Co., Ltd. officially launched its new Handheld Uncooled Infrared Gas Leak Detector, featuring dual-technology fusion, ultra-fast response, and long-distance non-contact detection to enhance safety and efficiency in petrochemical, refrigeration, natural gas and industrial safety scenarios.
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XINHAOSI recently participated in the 5th Western China Cross-Border E-Commerce Expo held in Chengdu. The event brought together cross-border e-commerce platforms, global buyers, manufacturers, and supply chain companies, creating new opportunities for international business cooperation and overseas market development.
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XINHAOSI recently participated in the 2026 Sichuan (Chengdu) – Indonesia Industry Matchmaking Conference held in Chengdu. The event gathered enterprises and industry representatives from China and Indonesia to strengthen industrial cooperation and explore new business opportunities in Southeast Asia.
Read ArticleExplore our industrial safety lineup, featuring explosion-proof multi-gas detectors, domestic alert modules, and high-flow solenoid shut-off units.
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