Non-rising Stem Flanged 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 Fire Service Resilient Seated NRS Gate Valve

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Dimension & Technical Specification of NRS Flanged Gate Valve

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Core Advantages of Resilient Seated Non-Rising Stem Flanged Gate Valve

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Non-Rising Stem Flanged Resilient Seated Gate Valve (Z45X-16Q)

• Concealed NRS Structure, Space-Saving Layout--The Z45X-16Q non-rising stem flanged gate valve features an inside-screw, non-rising stem design. The stem remains inside the valve body during operation, occupying minimal vertical space. It is ideal for low-height pipe galleries, underground trenches, fire protection, and municipal water pipelines with space restrictions.

• Standard Flanged Connection for Easy Maintenance--Standard flanged ends ensure a solid bolted pipeline connection, enabling convenient disassembly for inspection and repair. It matches perfectly with common flanged piping for fire service, domestic water, and industrial systems.

• Full Bore Channel, Low Flow Resistance--This resilient seated flanged gate valve features a full-through bore design without dead zones, effectively preventing sediment accumulation. It ensures smooth fluid flow and minimal pressure loss for fire water, domestic clean water, and HVAC circulation pipelines.

• Bidirectional Zero-Leakage EPDM Sealing--Fitted with an integrated EPDM rubber liner, this ductile iron gate valve provides reliable bidirectional tight shut-off at PN16 working pressure. It maintains stable sealing performance for building fire networks, municipal water supply, and general industrial water applications.

Fire Protection Non-Rising Stem Flanged Gate Valve CNC Machining Process | Jingda Valve Production

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

Surface Polishing & Deburring for Fire Service Resilient Seated NRS 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 Fire Service Resilient Seated NRS Gate Valve

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

Complete Assembly Flow of Fire Service Resilient Seated NRS 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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