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 Ductile iron OS&Y soft seal gate valve

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Dimension & Technical Specification of resilient seated flanged gate valve

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Core Advantages of Fire pipeline OS&Y gate valve

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Rising Stem Flanged Resilient Seated Gate Valve (Z41X-16Q)

• Visible Opening Position & Safe Operation--The Z41X-16Q rising stem flanged gate valve adopts an outside screw & yoke (OS&Y) structure. The exposed rising stem directly displays the valve’s open/closed status visually without extra detection, facilitating daily inspection. It is ideal for fire protection, water supply and industrial pipelines requiring clear valve state identification.

• Flanged End Design for Stable Installation--Featuring standard flanged connections, this resilient seated gate valve realizes firm bolted assembly with convenient disassembly for maintenance. Robust connection strength adapts to buried pipelines, pump rooms and outdoor piping systems with vibration and pressure fluctuation.

• Full Bore Straight Flow, Low Flow Resistance--Equipped with a full through bore channel, the rising stem flanged gate valve removes flow dead zones and sediment accumulation. It ensures smooth medium circulation with minimum pressure loss, suitable for fire water, domestic clean water and HVAC circulating water long-term operation.

• Bidirectional Zero-Leakage Resilient Sealing--Fitted with high-performance EPDM rubber liner, this flanged gate valve delivers reliable bidirectional tight shut-off under rated pressure. It maintains stable sealing performance for building fire systems, municipal water supply projects and general industrial water pipeline applications.

3C certified fire protection 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 QT450-10 soft seated flanged 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 Flanged resilient seated gate valve for fire system

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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 fighting 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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