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Lug-Type Backrest-Seated Butterfly Valve
The Lug-Type Backrest-Seated Butterfly Valve is a common type of butterfly valve, named for the ear-like connection structures (lugs) on both sides of its body. Flow is controlled by rotating the stem to turn the disc, thereby altering the disc's position relative to the flow path. The valve supports single-sided disassembly at the end of a pipeline and features ultra-low operating torque, condensation resistance, and a long service life. ETVALVE Lug-Type Backrest-Seated Butterfly Valves are available in sizes ranging from DN40 to DN1000 and pressure ratings of PN10, PN16, PN25, and 150LB, with a variety of body and seat material options.
- Unique Lug Design and Lightweight Structure
- High Flexibility for Dead-End Service
- Durable Hard-Backed Resilient Seat Design
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Unique Lug Design and Lightweight Structure
The valve features a streamlined overall structure with minimal components and moderate size and weight, facilitating easy installation and routine maintenance. The lug design provides additional connection points and structural support, ensuring stability and reliability within the pipeline while effectively preventing damage caused by vibration or external forces. The valve disc requires only a 90° rotation to open or close, offering rapid response and low operating torque.
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High Flexibility for Dead-End Service
The Lug-Type Backrest-Seated Butterfly Valve is a common type of butterfly valve, named for the ear-like connection structures on both sides of its body. Flow is controlled by rotating the stem to turn the disc, thereby altering the disc's position relative to the flow channel. The valve body features threaded lug holes, offering exceptional structural integrity and installation flexibility. The threaded lugs mate directly with pipeline flanges, eliminating the need for through-bolts and preventing the valve from slipping out of position.
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Durable Hard-Backed Resilient Seat Design
A key feature of this lug-style butterfly valve is its advanced phenolic hard-backed resilient seat design. This non-collapsible structure maintains perfect alignment and ensures uniform compression against the disc. Consequently, the valve guarantees a reliable, bidirectional, zero-leakage seal, even at full nominal pressure.
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Gear Lug-Type Backrest-Seated Butterfly Valve DN40-DN300 Download
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Gear Lug-Type Backrest-Seated Butterfly Valve DN350 Download
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Gear Lug-Type Backrest-Seated Butterfly Valve DN400-DN600 Download
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Lug-Type Backrest-Seated Butterfly Valve DN40-DN300 Download
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Lug-Type Backrest-Seated Butterfly Valve DN350 Download
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Lug-Type Backrest-Seated Butterfly Valve DN400-DN600 Download
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Manual Lever Lug-Type Backrest-Seated Butterfly Valve DN40-DN150 Download
| Product Specifications (Lug-Type Backrest-Seated Butterfly Valve) |
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| DN | DN40-DN1000 | Actuation Method | Hand Lever、Worm Gear |
| Working Pressure | PN10 PN16 PN25 | Working Temperature | -20℃~200℃ -10℃~80℃ -30℃~180℃ |
| Seal Material | EPDM, PTFE, NBR, VITON, Polyurethane, Silicone rubber | Disc Material | SS304、SS316、 Nylon Disc、Ductile iron、2205、2507、1.4529 |
| Body Material | Ductile iron、SS304、SS316、WCB | Media | Water、 Oil、Gas、powder particles、 Flue gas desulfurization (FGD) |
| Application | Water treatment, Municipal engineering, Pharmaceutical, Automotive industry | Connection Standards | PN10/PN16、ANSI150、DIN PN10/PN16、JIS 10K |
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