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U-Type Backrest-Seated Butterfly Valve
The ET VALVE U-Type Backrest-Seated Butterfly Valve is a high-performance flow control valve designed for heavy-duty industrial piping systems. It operates by rotating an internal disc in conjunction with a U-section seat seal to open, close, or regulate fluid flow. A 90-degree turn enables quick opening and closing with rapid response. When fully open, the disc offers minimal resistance to fluid flow, ensuring superior energy efficiency.Its U-shaped valve body design facilitates centering and installation between flanges, making it an ideal alternative to standard wafer-style or lug-style butterfly valves.This valve is specifically designed to achieve bidirectional zero-leakage sealing, consistently maintaining reliable shut-off performance.
- Compact Design: Exceptional Stability in High-Velocity Flows
- Precision-Engineered Low Operating Torque: Cost-Effective and Smooth Actuation
- Bidirectional Zero-Leakage Sealing: Maximum Safety and System Flexibility
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Compact Design: Exceptional Stability in High-Velocity Flows
Compared to double-flange rubber-lined butterfly valve , this model is compact and lightweight, making installation easy and effectively saving piping space. Its rapid opening and closing capabilities allow it to function as a flow control device or as a diverter/combiner to redirect flow. Our U-section butterfly valve features a two-piece, pinless stem connection and a seat design where the sealing rubber is integrally bonded to a rigid backing. This design ensures exceptional stability in high-velocity flows and extends the valve's service life.
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Precision-Engineered Low Operating Torque: Cost-Effective and Smooth Actuation
High operating torque in flow control valves often leads to premature seal wear and forces users to purchase oversized, expensive pneumatic or electric actuators. To address this, our U-section butterfly valve utilizes precision-machined disc edges and highly polished disc surfaces. By minimizing frictional resistance during opening and closing cycles, we significantly reduce both breakaway and running torques.
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Bidirectional Zero-Leakage Sealing: Maximum Safety and System Flexibility
In complex piping networks, flow directions can change, and system safety relies on reliable isolation from both sides. The specialized U-section seal fits tightly when the disc is closed, preventing media leakage and reducing wear. This valve simplifies piping layouts, enhances system safety, and offers plant engineers maximum operational flexibility.
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Gear U-Type Backrest-Seated Butterfly Valve DN50-DN300 Download
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Gear U-Type Backrest-Seated Butterfly Valve DN350 Download
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Gear U-Type Backrest-Seated Butterfly Valve DN400-DN600 Download
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Manual Lever U-Type Backrest-Seated Butterfly Valve DN50-DN300 Download
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U-Type Backrest-Seated Butterfly Valve DN50-DN300 Download
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U-Type Backrest-Seated Butterfly Valve DN350 Download
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U-Type Backrest-Seated Butterfly Valve DN400-DN600 Download
| Product Specifications (Hard-back U-shaped butterfly valve) |
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| DN | DN50-DN1200 | Actuation Method | Hand Lever、Worm Gear |
| Working Pressure | PN6 PN10 PN16 | Working Temperature | -20℃~110℃ -15℃~150℃ -20℃~100℃ -20℃~200℃ -10℃~80℃ |
| Seal Material | EPDM, PTFE, NBR, VITON, Polyurethane | Disc Material | SS304、SS316、Polished plate 、Nylon Disc、2205、2507 |
| Body Material | Ductile iron | Media | Water、 Oil、Gas、powder particles |
| Application | Water treatment, Municipal engineering, Pharmaceutical | Connection Standards | PN10/PN16、ANSI150、DIN PN10/PN16 |
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