Engineered for immediate gas isolation, zero leakage, and long-term reliability in high-density urban environments. Designed to prevent hazards under seismic stress.
Ultra-fast shutdown mechanism ideal for Tokyo residential complexes and apartment gas leak shut-off networks.
Normally open solenoid valves designed for Tokyo's commercial complexes, offering instantaneous shut-off during seismic sensor triggers.
Heavy-duty gas isolation valve with reinforced body, built for Tokyo's district heating and gas utility networks.
Designed for high-flow industrial gas mains, delivering robust explosion-proof ratings and stable performance under extreme thermal conditions.
Tokyo is a super-dense metropolis with demanding building safety codes, specifically relating to earthquake preparedness. The Metropolitan Gas Master Plan dictates that commercial and residential structures must install automatic gas shut-off valves linked directly to seismic sensors.
When seismic sensors detect a Class 5 or higher tremor on the JMA (Japan Meteorological Agency) scale, solenoid valves must isolate the gas supply within millisecond response windows. This prevents catastrophic secondary fire hazards, safeguarding Tokyo’s skyscrapers, commercial districts, and complex transit tunnels.
Valves are design-tested to align with JIS (Japanese Industrial Standards) and JIA (Japan Gas Appliances Inspection Association) equivalents to ensure smooth regulatory approvals.
Custom electromagnetic coil configurations designed for Japanese voltage grids (100V/200V AC and 12V/24V DC), optimizing continuous duty cycles with minimal power consumption.
From standard direct-acting electromagnetic coils to IoT-enabled smart gas management system valves.
As Tokyo pivots towards carbon-neutral municipal gas (Hydrogen-natural gas blending), we test materials to guarantee high resistance to hydrogen embrittlement and micro-leakage.
Featuring smart output feedback loops (like AT0321X output devices) facilitating continuous remote monitoring of valve open/close states over modern wireless networks.
Ex d IIC T6 Gb explosive protection ratings for chemical treatment plants, oil refineries, and large-scale industrial kitchens across the Keihin Industrial Area.
Launching direct dry-contact sensor signal valves compatible with metropolitan IoT meters.
Upgrading seal compounds to high-density FKM/HNBR formulations suitable for pure hydrogen flow loops.
Integrating AI micro-sensors into the valve body to predict valve degradation and elastomer fatigue.
Operating from our state-of-the-art Chinese manufacturing base allows us to deliver high-precision products with significant logistics advantages. This structure offers Tokyo engineering partners:
Lower overall production costs allow us to offer competitive wholesale pricing for municipal development projects.
Each gas valve undergoes 100% helium mass spectrometer leak testing and performance cycle runs before shipping.
Efficient shipping lanes from our facilities to Tokyo Bay (Ohi Container Terminal) ensure rapid turnaround times.
Founded in 2003, Xinhaosi has grown to become a reliable, influential brand in the gas safety industry. We provide customer-focused products and services to safeguard municipal gas operations, industrial complexes, and residential developments globally.
We utilize advanced electronic detection and flow control technology to make gas leak risks clear and visible. Powered by modern production systems, we deliver precise gas safety solutions aimed at building a safer future.
Integrating gas monitoring, detection, and valve shut-off mechanisms across all applications.

Advanced flame and gas detection systems designed to protect challenging petrochemical environments.

Smart kitchen gas monitoring systems for residences, hotels, and public facilities.

Fast-acting shut-off safety valves designed to isolate gas leaks directly at the source.

IoT-enabled infrastructure valves for smart city pipeline pressure regulation and management.
Explore our broader selection of valves, pressure regulators, and output systems designed for Tokyo's commercial and industrial distributors.
Normally open high-capacity solenoid valve designed for industrial complexes and gas distribution pipelines.
High-precision pressure regulator ensuring safe flow control for LPG and LNG industrial networks.
Operates without continuous external power wiring, ideal for remote residential setups in modern smart apartments.
Equipped with built-in sensors for real-time monitoring and autonomous gas leak isolation.
Designed for high-integrity installation on main pipelines to protect against downstream ruptures.
Maintains zero flow in power outages, ideal for safety isolation loops in industrial factories.
Engineered for high-flow installations, providing dependable performance in Tokyo's industrial zones.
Translates solenoid valve actions into system signal outputs for factory automation PLC networks.
Complete safety infrastructure requires both shut-off valves and detection units. These modules function together to ensure comprehensive hazard mitigation.
High-precision household sensor featuring smart local alarm tones and real-time gas monitoring.
Advanced domestic gas detection units featuring drift compensation and long sensor lifetimes.
Industrial-grade sounder strobe designed for deployment in hazardous hazardous areas.
Tough detector housing engineered for high-risk industrial facilities and oil terminals.
Detailed technical explanations regarding gas safety solenoid valves, regional compliance, and system implementation.
Our gas safety solenoid valves interface directly with electronic seismic sensors. When a Class 5 or higher tremor is detected, the sensor fires an electrical pulse that cuts power or triggers the actuator, causing the valve to close in under 0.3 seconds. This rapid reaction isolates the gas lines before major structural shifts occur, reducing fire risks.
Direct-acting valves use the magnetic force of the solenoid coil to lift the valve plug directly, making them reliable at low pressures and zero differential flow conditions. Pilot-operated valves utilize line pressure to actuate the main diaphragm, allowing them to manage higher pressures and larger line diameters with smaller, more energy-efficient coils.
Yes. We construct our components to accommodate hydrogen blends. We select high-density elastomers like FKM or HNBR and utilize metals resistant to hydrogen embrittlement. This ensures leak integrity even at the molecular level of hydrogen mixtures.
Every single valve undergoes rigorous helium mass spectrometry pressure testing. This protocol is highly sensitive, detecting leaks that traditional pressure-drop testing misses. We ensure a zero-bubble, tight seal that matches international standards for combustible gas lines.
Our coils can be customized to match Japanese standards (100V/200V AC at 50/60 Hz) as well as global standards (12V/24V DC, 110V/220V AC). Explosion-proof options are also available for environments requiring Ex d IIC T6 ratings.
Our engineering and safety solutions protect key operations globally, working with municipal gas companies and heavy industry brands.
Industry developments and news from Xinhaosi's R&D division.
Featuring dual-technology fusion and rapid response, this system enables non-contact detection in chemical plants, refineries, and cold storage facilities.
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Connecting global buyers and supply chain managers in Chengdu to facilitate trade, logistics cooperation, and custom supply relationships.
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Strengthening regional trade partnerships and safety infrastructure projects throughout Southeast Asia and Oceania.
Read MoreWhether managing high-volume industrial pipelines, designing residential safety features, or specifying seismic shut-off systems, our engineering team is here to assist.