In modern industrial gas infrastructure, the integrity of automatic shut-off systems dictates operational safety boundaries. A 2-way solenoid valve (commonly known in design pipelines as a 2 valve configuration) forms the critical junction point for fluid dynamic containment. These devices operate on a direct binary layout (normally open or normally closed), responding instantaneously to electrical signals from gas detection controllers. As a premier OEM 2 Valve supplier and dedicated manufacturing facility, Xinhaosi synthesizes over twenty years of material science, thermodynamic engineering, and microprocessor-driven safety compliance to produce valves capable of navigating explosive environments and corrosive media with absolute stability.
Founded in 2003, Xinhaosi has established itself as one of the most influential and trusted brands in the global gas safety industry. Over the past two decades, we have constructed a robust and comprehensive production and service ecosystem. This integrated model links cutting-edge R&D laboratories, intelligent manufacturing lines equipped with automated production machinery, digital global distribution networks, responsive technical after-sales engineers, and flexible OEM/ODM contract manufacturing services. Additionally, we provide CNAS-accredited calibration services to assure compliance with the most demanding international validation standards.
Our diversified product portfolio encompasses industrial and residential gas detection systems, industrial and household gas solenoid valves (including specialized 2-way solenoid configurations), and urban gas pipeline network monitoring units. Each product line is engineered to thrive under harsh, variable environmental conditions. Annually, our facilities manufacture and ship tens of millions of units, powering safety assurance in oil and gas exploration, petrochemical refining, steelworks, chemical formulation, food processing, municipal energy distribution, and new-energy facilities worldwide.
Chengdu Factory & Office
Deyang Factory
Our Deyang and Chengdu production facilities demonstrate the power of Factory 4.0 integration. In the production of 2-way solenoid safety valves, precision machining of internal valve bodies and sealing seats is paramount. Even micrometer-scale deviations can lead to microscopic leak paths, invalidating explosive safety margins. By implementing advanced CNC multi-axis automated machining centers, automated coil winding assemblies, and machine vision-based seal inspection systems, Xinhaosi guarantees a level of manufacturing repeatabilty unmatched by conventional manufacturing processes.
From raw copper extrusion and casting alloy verification to automated surface passivating, we control the entire lifecycle of our 2-way gas valves, removing external supply vulnerabilities.
Every solenoid coil and valve body receives a unique, laser-etched matrix code linked to our MES database, logging casting temperatures, coil winding tension, and test metrics.
Configured assembly lines enable rapid tool changes, shortening setup lead times for OEM prototype batches and scaling to high-volume commercial runs with ease.
Adhering to strict ISO 9001 quality management system standards, Xinhaosi's core products have obtained a comprehensive range of international safety certifications. These include national compulsory Products Certification (CCC), explosion-proof approvals (Ex d IIC T6 Gb), fire product safety approvals, CPA measurement instrument type certifications, CE compliance, and SIL (Safety Integrity Level) ratings. Additionally, Xinhaosi has been recognized as a "National Quality Integrity Benchmark Enterprise" and a "National Quality Leading Enterprise in the Gas Alarm Industry," while acting as a member of the China Fire Protection Association and a primary drafting organization for the national standard of gas solenoid valves.
Our intellectual property portfolio contains over 50 patents and software copyrights. This research focuses on real-time system monitoring, including digital gas detection platforms that predict failure points based on historical drift, and solenoid valve flow feedback networks that integrate pressure sensing with automatic trip mechanisms.
Our in-house, state-of-the-art testing facility is accredited by the China National Accreditation Service for Conformity Assessment (CNAS), recognized globally under the ILAC-MRA framework. Operating in full compliance with ISO/IEC 17025 standards, our laboratory evaluates thermal resistance, electromagnetic field density, structural stress, and extreme leakage testing under varied climatic pressures.
As the digital transformation of industrial safety (Industry 4.0) accelerates, the traditional 2-way solenoid valve is shifting from a simple binary hardware component to an active sensor node. Operating cycles, temperature limits, and coil integrity are monitored continuously to detect degradation before a failure occurs.
Future generation 2 valve systems feature integrated hall-effect sensors, microprocessor control loops, and Modbus/CAN bus interfaces. This allows remote control systems to verify valve open/closed states and log actuation latency times down to the millisecond.
To prevent system shut-downs from coil burnout, our engineers are developing multi-wound coils with active temperature sensors. When abnormal resistance shifts are detected, the system issues warning flags while maintaining valve operation on a secondary winding.
By integrating custom pulse width modulation (PWM) control chips directly into the solenoid enclosure, our upcoming valve configurations decrease holding power requirements by up to 70%, reducing thermal load and increasing mechanical component lifespans.
Different environments demand distinct safety configurations. Our OEM 2 Valve engineering solutions are tailored to meet the strict requirements of various critical sectors:
Petrochemical refineries work with volatile hydrocarbons under extreme pressure. Our specialized explosion-proof, normally-open gas solenoid valves (KT-XF5 and XF5III series) are designed to provide rapid shut-off when combustible gas detectors register threat levels. These valves feature heavy cast alloy constructions and are certified to meet Ex d IIC T6 standards, providing reliable performance in volatile atmospheres.
Safeguarding metropolitan pipeline operations requires reliable, continuous monitoring and control systems. We manufacture high-flow 2-way safety valves that interface with automated low-voltage power units (such as the AT2031XE Low Voltage Power Box) and intelligent data gateways. This ensures automatic system shutdown in the event of seismic activity or localized pipeline ruptures.
High-temperature steel mills and metallurgy plants utilize high-volume gas lines for smelting furnaces. In these environments, ambient air quality and thermal strain can rapidly degrade standard components. Our industrial 2-way valves utilize high-performance fluorocarbon (FKM) and PTFE seals to ensure reliable shutoff and prevent leaks under extreme operational stress.
For light commercial kitchens and high-rise apartments, cost efficiency and reliable protection are key. Our household-focused series of gas detection systems and compact safety solenoid valves provide immediate shutoff during leak events, protecting lives and property while remaining easy to install and maintain.
International engineering buyers prioritize supply chain reliability and strict compliance. Working with a dedicated Chinese OEM/ODM factory like Xinhaosi provides access to vertically integrated manufacturing, customizable design specifications, and direct engineer-to-engineer technical support.
| Technical Parameter | Standard OEM Options | Custom Design Options | Industry Compliance |
|---|---|---|---|
| Valve Body Materials | Forged Brass, Cast Aluminum Alloy | CF8M (316 Stainless Steel), Cast Steel | NACE MR0175 / ISO 15156 |
| Seal Compounds | NBR (Nitrile Rubber) | FKM (Viton), PTFE (Teflon), EPDM | FDA compliant / EN 549 |
| Operating Voltage | DC 12V, DC 24V, AC 220V | AC 110V, DC 110V, Intrinsic Safety Power Loops | IEC 60038 Standards |
| Enclosure Protection | Ex d IIC T6 Gb (Flameproof) | Ex ia / Ex em dual protection, IP67/IP68 rating | ATEX, IECEx, NEPSI Certification |
Distributing gas safety systems globally requires alignment with varying regional regulations. Xinhaosi provides comprehensive compliance documentation, including EU declaration of conformities (CE directives), local calibration paperwork, and SIL certification reports.
Each shipment includes certified inspection records, chemical analysis certificates (MTRs), and detailed installation and maintenance manuals in English, Spanish, or German to streamline installation.
Through our CNAS-accredited calibration laboratory, we provide test reports traceable to national metrology institutes, facilitating project approvals with municipal gas engineers and regulatory bodies.
We maintain key distribution and engineering partnerships in Europe, South America, and Southeast Asia, offering localized technical assistance and critical component replacement services.
● Established on April 17th, 2003.
● Launched the 1st generation of gas leak alarm & fire fighting safety solutions.
● Began dedicated gas safety valve manufacturing.
● Expanded OEM contract manufacturing services globally.
● Relocated head offices to the Longtan Industrial Park.
● Achieved record-breaking sales milestone of over 10 million units.
● Moved production lines to our custom Chengdu manufacturing base.
● Established a comprehensive sales and support network across China.
● Launched the fire power monitoring system product line.
● Launched our proprietary, cloud-integrated gas monitoring IoT platform.
● Developed automatic fire alarms and emergency lighting systems.
● Received the official Chinese High-Tech Enterprise designation.
● Qualified as an approved supplier for China's top five gas companies.
● Initiated construction of the automated Deyang production facility.
● Formed dedicated divisions for Petrochemical and International Business.
● Awarded the prestigious Sichuan Provincial Technology Center designation.
● Deyang factory construction completed and fully operational.
● Rolled out intelligent urban gas distribution network monitoring systems.
● Introduced wireless detection systems and smart AI safety valves.
Normally Open (N.O.) solenoid valves stay open via mechanical spring force and close when energized. They are commonly used in safety shutdown systems, allowing gas flow during normal operations and cutting flow quickly when a hazard is detected. Normally Closed (N.C.) valves require constant electrical power to stay open and close immediately if power is lost, making them ideal for systems requiring fail-safe shut-off during power outages.
SIL (Safety Integrity Level) ratings measure safety system performance. Gas detection systems rely on solenoid valves to close when triggered. A SIL 2 or SIL 3 rating shows the valve has undergone strict failure mode and effects analysis (FMEA) to verify a very low probability of failure on demand, ensuring reliable performance when safety actions are required.
For standard fuel gases, brass or anodized aluminum alloy valve bodies are typically used. In corrosive industrial environments, such as sour gas processing or chemical plants handling sulfuric compounds, CF8M (316 Stainless Steel) valve bodies with specialized Viton (FKM) or PTFE seals are recommended to resist chemical degradation.
We provide full-service OEM and ODM contract manufacturing, allowing customization of valve port configurations, thread standards (NPT, BSPT, Flanged), coil voltages, housing styles, and packaging. Our engineering team works directly with clients to draft CAD designs, build rapid prototypes, and complete laboratory testing in our CNAS-accredited facility.
