Non-Rising Stem Grooved Signal Gate Valve

This valve is manufactured in China and fully compliant with Chinese national fire safety standards. It has passed rigorous quality and safety testing, including CCCF (China Compulsory Certification for Fire Products), ensuring reliable performance and long service life. While it is certified for the Chinese domestic market, it meets international design and quality specifications and can be used in many projects worldwide where local certification is not mandatory.

Components and Materials List of Signal Grooved Gate Valve

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Dimension & Technical Specification of Soft Seated Grooved Signal Gate Valve 

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Core Advantages of Resilient Seated Grooved Signal Gate Valve

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NRS Grooved Resilient Seated Signal Gate Valve ZSXZF8-Q-16Q

• Smooth Manual Operation & Precise Position Hold– Features an optimized stem-and-wedge mechanism that minimizes operating torque. The self-locking stem thread prevents wedge drift, keeping the valve securely in place during service.

• Compact Grooved Design for Fast, Weld-Free Installation – Built with a rigid ductile iron body, standard grooved ends enable rapid, weld-free assembly. Ideal for tight spaces, pipe trenches, and overhead fire protection lines.

• EPDM Encapsulated Wedge for Zero-Leak Closure – Fully EPDM-encapsulated wedge ensures drip-tight shutoff under full working pressure. Excellent resistance to aging and wear guarantees long-term sealing performance in fire sprinkler networks.

• Full-Bore Straight-Through Flow Path – Unobstructed full-port design reduces fluid resistance and pressure drop to a minimum, ensuring maximum water delivery efficiency.

• Real-Time Supervisory Signal Output – Equipped with an integrated position switch, the valve sends instant open/closed and tamper status signals to the Fire Alarm Control Panel (FACP) for smart monitoring.

Fire Service Grooved Signal Gate Valve CNC Machining Process | Jingda Valve Production

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JINGDA adopts CNC precision lathe for grooved gate valve body machining to ensure precise dimension for fire protection grooved pipe connection.

Surface Polishing & Deburring for NRS Grooved Signal Gate Valve

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All QT450 cast valve bodies go through polishing process to remove burrs, improve corrosion resistance and sealing matching precision.

Hydrostatic Pressure Test & Leakage Inspection of Grooved End Signal Gate Valve

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Every finished grooved gate valve undergoes 1.5PN hydrostatic pressure leakage test to meet CCCF fire valve standard requirements.

Complete Assembly Flow of Grooved End Signal Gate Valve

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Professional workers assemble disc, EPDM seat, stem and lever strictly following standard assembly procedure for long service life.

About Jingda Valve | Professional Industrial Valve Manufacturer from China

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Botou Jingda Valve Co., Ltd. is a professional manufacturer specialized in producing high-quality valves. The company has advanced internal management standards and enjoys a high reputation in the casting industry with 15 years of production experience.

We own a modern factory, sophisticated manufacturing, processing and testing equipment, as well as strong technical strength. Our factory employs skilled technicians and operators, with a total staff of 100 people. Our products have passed ISO 9001:2015 and CE certifications.

Our main products include butterfly valves, gate valves, ball valves, check valves, Y-type strainers, rubber joints, Pipe Fittings,etc.

With high-quality products and a complete service system, our products are exported to dozens of countries and regions, including Europe, America, Southeast Asia, the Middle East, Australia, North Africa, South Korea, Hong Kong and Taiwan, with an annual export volume of 10 million US dollars.

Company tenet: Professional technical support and perfect after-sales service!

Jingda Valve Official Certifications & Third-party Test Reports

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