Grooved Non-Rising Stem 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 Non-rising Stem Grooved Gate Valve

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Dimension & Technical Specification of NRS Grooved Gate Valve

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Core Advantages of NRS Grooved Gate Valve

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Non-Rising Stem Grooved Gate Valve (Z85X-16Q)

• Non-Rising Stem Design & Space-Saving Operation--The Z85X-16Q non-rising stem (NRS) grooved gate valve features an internal stem structure where the stem rotates without vertical travel during operation. This significantly saves overhead clearance and eliminates the need for extra vertical space, making it ideal for concealed pipe shafts, low-clearance ceiling piping, and tight fire protection pipeline environments.

• Compact Grooved Connection & Fast Installation--Featuring integrated grooved ends and a lightweight ductile iron (QT450) body, this grooved gate valve provides fast, welding-free pipeline assembly. Its compact design simplifies piping layouts and drastically improves construction efficiency for HVAC, municipal water supply, and building fire protection systems.

• Full Bore Flow & Sediment-Free Performance--Built with a full-port, straight-through flow passage, this resilient seat grooved gate valve eliminates dead pockets and flow turbulence. It ensures smooth fluid circulation without clogging or sediment buildup, perfect for long-term reliable operation in fire protection water, potable water, and industrial circulating water lines.

• Zero-Leakage Resilient Sealing & Durable Stability--Equipped with a high-elasticity EPDM-encapsulated wedge, this valve achieves bidirectional bubble-tight sealing under working pressures up to PN16 (1.6 MPa). It delivers dependable shut-off performance with superior pressure resistance and anti-aging durability for sprinkler systems and water supply networks.

Groove Type Non-Rising Stem 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 groove dimension for fire protection grooved pipe connection.

Surface Polishing & Deburring for Grooved Non-Rising Stem 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 Non-rising Stem Grooved 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 Non-rising Stem Grooved 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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