The KT-XF5 Series Industrial Gas Emergency Shut-off Solenoid Valve (Keep Normally Open) combines reliable shut-off and advanced communication for industrial natural gas systems. Its aluminum alloy body offers strong corrosion and pressure resistance, fitting harsh industrial environments. Sealing material has NBR/FKM options, ensuring airtightness. Operating at -20°C ~ +60°C, it adapts to diverse industrial scenarios. With manual opening, dual closing methods and ≤1s closing time, it quickly cuts off gas in emergencies. Supporting thread/flange interfaces, its stainless steel actuator enhances durability. IP66 protection, 10-year service life and Ex mb IIC T6 Gb explosion-proof grade ensure safety. Unique HBUS communication enables remote monitoring with central control systems. Compliant with GB 44016-2024, it's an essential intelligent protection for modern industrial gas systems.
🛡️ IP66 Protection
💥 Ex mb IIC T6 Gb
📋 GB 44016-2024
⏳ 10-Year Service Life
⚡ ≤1s Closing Time
⚙️ Key Technical Features
🏗️
Body Material
Aluminum alloy — strong corrosion & pressure resistance for harsh industrial environments
🔧
Sealing Material
NBR / FKM options for superior airtightness and long-term reliability
🌡️
Operating Temperature
-20°C ~ +60°C — adapts to diverse industrial scenarios
⏳
Emergency Closing Time
≤1 second — rapid gas shut-off to protect personnel and assets
🔩
Connection Interface
Thread / Flange interfaces supported for flexible installation
📡
Communication
Unique HBUS protocol — enables remote monitoring with central control systems
📊 Product Specifications
| Parameter |
Specification |
| Product Series |
KT-XF5 Series (Keep Normally Open) |
| Application |
Industrial Natural Gas Systems |
| Body Material |
Aluminum Alloy |
| Sealing Material |
NBR / FKM (optional) |
| Operating Temperature |
-20°C ~ +60°C |
| Emergency Closing Time |
≤ 1 Second |
| Closing Methods |
Dual closing methods (automatic + manual) |
| Connection Type |
Thread / Flange Interface |
| Actuator Material |
Stainless Steel |
| Protection Rating |
IP66 |
| Explosion-proof Grade |
Ex mb IIC T6 Gb |
| Communication Protocol |
HBUS (Remote Monitoring) |
| Service Life |
10 Years |
| Compliance Standard |
GB 44016-2024 |
✅ Why Choose KT-XF5 Series
🏭 Built for Industrial Reliability: The aluminum alloy construction and stainless steel actuator are engineered to withstand corrosive, high-pressure industrial environments without compromising performance over time.
⚡ Ultra-Fast Emergency Response: With a closing time of ≤1 second and dual closing methods, the KT-XF5 ensures immediate gas isolation the moment a hazard is detected — minimizing risk to personnel and infrastructure.
📡 Smart HBUS Integration: The proprietary HBUS communication protocol enables real-time remote monitoring and seamless integration with central control and SCADA systems for proactive gas safety management.
🔒 Certified Safety & Compliance: Ex mb IIC T6 Gb explosion-proof certification, IP66 ingress protection, and full compliance with GB 44016-2024 make it a trusted choice for regulated industrial gas applications.
❓ Frequently Asked Questions
Q
What does "Keep Normally Open" mean for the KT-XF5 Series solenoid valve?
"Keep Normally Open" (KNO) means the valve remains in the open position under normal operating conditions, allowing gas to flow freely. In the event of an emergency or power signal trigger, the valve immediately closes to shut off the gas supply, providing fail-safe protection for the pipeline system.
Q
What is the HBUS communication protocol and how does it benefit industrial gas management?
HBUS is a proprietary communication protocol built into the KT-XF5 Series that allows the solenoid valve to communicate with central control systems or SCADA platforms. It enables real-time remote monitoring of valve status, facilitates automated responses to gas leak alerts, and supports integration into smart industrial gas management networks — reducing the need for manual on-site inspection.
Q
What sealing material options are available, and how do I choose the right one?
The KT-XF5 Series offers two sealing material options: NBR (Nitrile Butadiene Rubber) and FKM (Fluoroelastomer/Viton). NBR is suitable for standard natural gas applications with moderate temperature ranges, while FKM offers superior chemical resistance and is recommended for environments with higher temperature extremes or exposure to aggressive gas compositions. Please consult your application requirements when selecting.
Q
Is the KT-XF5 Series suitable for use in hazardous or explosive atmospheres?
Yes. The KT-XF5 Series carries the Ex mb IIC T6 Gb explosion-proof certification, making it suitable for use in Zone 1 and Zone 2 hazardous areas where flammable gases may be present. Its IP66 ingress protection rating also ensures it is fully protected against dust and powerful water jets, making it reliable in demanding industrial outdoor environments.
Q
What connection interface types does the KT-XF5 Series support?
The KT-XF5 Series supports both threaded (NPT/BSP) and flange connection interfaces, providing flexibility for integration into various existing industrial gas pipeline configurations. This dual-interface support simplifies installation and reduces the need for additional fittings or adapters.
Q
What standard does the KT-XF5 Series comply with, and why does it matter?
The KT-XF5 Series is fully compliant with GB 44016-2024, the latest Chinese national standard for industrial gas safety shut-off valves. This compliance ensures the product meets stringent safety, performance, and quality requirements mandated by regulatory authorities, making it a qualified and approved solution for industrial natural gas infrastructure projects in China and relevant international markets.
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