Dimension & Technical Specification of Signal Grooved End Butterfly Valve
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| Nominal Specification DN (inch) | Pressure (PN) | A | B | L | D | D1 | D2 | D3 | H | H1 | H2 |
|---|
| 50 (2'') | 16 | 15 | 9 | 103 | 60.3 | 50 |
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| 2.8 | 2.5 |
| 65 (2½") | 16 | 15 | 9 | 105 | 73.0 | 65 | 17.5 | 13 | 173 | 2.8 | 2.5 |
| 65 (2½") | 16 | 15 | 9 | 105 | 76.1 | 65 | 17.5 | 13 | 173 | 2.8 | 2.5 |
| 80 (3") | 16 | 15 | 9 | 106 | 88.9 | 75 | 17.5 | 13 | 187 | 2.8 | 2.5 |
| 100 (4") | 16 | 16 | 9.5 | 119 | 108.0 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
| 100 (4") | 16 | 16 | 9.5 | 119 | 114.3 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
| 125 (5") | 16 | 16 | 9.5 | 131 | 133.0 | 125 | 23.5 | 19 | 214 | 2.8 | 2.5 |
| 125 (5") | 16 | 16 | 9.5 | 131 | 139.7 | 125 | 23.5 | 19 | 214 | 2.8 | 2.5 |
| 125 (5") | 16 | 16 | 9.5 | 131 | 141.3 | 125 | 23.5 | 19 | 214 | 2.8 | 2.5 |
| 150 (6") | 16 | 16 | 9.5 | 119 | 114.3 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
| 150 (6") | 16 | 16 | 9.5 | 119 | 114.3 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
| 200 (8") | 16 | 16 | 9.5 | 119 | 114.3 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
| 250 (10") | 16 | 16 | 9.5 | 119 | 114.3 | 100 | 20.5 | 16 | 198 | 2.8 | 2.5 |
Core Advantages of Manual Lever Operated Grooved Butterfly Valve with Signal
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Grooved End Fire Butterfly Valve with Signal ( XD81X-16Q))
1. Fast On-off & Low Fluid Resistance – The XD81X-16Q lever operated grooved end fire signal butterfly valve features quick opening and closing action with ultra-low operating torque and minimal flow resistance. This resilient seated grooved butterfly valve is specially designed for frequent on-off operations in fire protection systems, plumbing works and industrial pipeline projects.
2. Compact & Lightweight Structure – This grooved connection signal butterfly valve adopts a simplified compact structure with short face-to-face dimension and light weight. It is a perfect pipeline fitting for large-diameter grooved piping in HVAC systems, water supply pipelines and fire fighting pipe networks.
3. Strong Adaptability for Clean Water Medium – The grooved end signal butterfly valve with manual lever performs stably with clean fire water, purified water and regular cold & hot water media. No water residue accumulates inside the valve cavity, making it perfectly matched for building fire sprinkler networks, municipal domestic water supply and HVAC circulating water pipeline systems.
4. Superior Low-pressure Sealing Performance – The grooved resilient seated signal butterfly valve delivers stable and reliable sealing under low pressure conditions. It is widely used for cold and hot water industrial piping, fire sprinkler systems and building fire protection pipeline installation.
5. Precise Flow Regulation Capacity – The manual lever grooved end fire signal butterfly valve provides accurate and stable flow regulation performance. It is applicable for pipeline flow control in municipal water supply, fire service engineering and building construction projects.
6. Large Effective Flow Area – When fully opened, the valve seat channel of the XD81X-16Q grooved signal butterfly valve forms a full-bore flow passage with minimum fluid resistance, optimizing the layout and water delivery efficiency of fire protection grooved piping systems.
7. Streamlined Disc Design – The disc of the grooved manual signal butterfly valve features a streamlined, hydraulic-optimized design. This minimizes turbulence and fluid resistance, ensuring a lower operating torque and prolonged service life during high-frequency switching operations.
8. Durable High-quality Sealing Surface – The sealing surface of the grooved lever signal butterfly valve is manufactured from premium rubber and polymer materials. It maintains excellent low-pressure tightness and sealing stability for fire suppression piping and domestic water supply pipeline systems.
9. Easy & Fast Field Installation – Featuring a standard grooved end connection design, this fire signal butterfly valve enables fast and labor-saving on-site installation. It is extensively applied in building fire sprinkler pipelines, fire hydrant branch pipes and complete fire protection grooved piping systems.
10. Ergonomic Lever & Reliable Signal Feedback – The XD81X-16Q grooved end signal butterfly valve is equipped with an ergonomic manual lever featuring precise open/close positioning. Fitted with dependable micro signal switches, it can real-time transmit valve open and closed status signals to fire control systems, fully satisfying monitoring requirements of building fire grooved piping projects.
Grooved Signal Lever Butterfly Valve CNC Machining Process | Jingda Valve Production
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JINGDA adopts CNC precision lathe for grooved butterfly valve body machining to ensure precise groove dimension for fire protection grooved pipe connection.

Surface Polishing & Deburring for Lever Signal Grooved Butterfly 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 Lever Operated Signal Grooved Butterfly 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 Manual Signal Grooved End Butterfly 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 Grooved Butterfly 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.
Our mainly 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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