Description
L&T Butterfly Valves are reliable quarter-turn valves designed for shut-off and throttling applications. Available in wafer, lug, and double-flanged designs, they offer compact construction, lightweight operation, low torque, and long service life. Suitable for water, air, HVAC, chemical, process, and industrial applications.
Design Standards
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Design & Manufacture: API 609 / BS 5155 / EN 593
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Face-to-Face: ISO 5752 / API 609
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Flange Standards: ASME B16.5 / EN 1092 / IS 6392
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Inspection & Testing: API 598 / ISO 5208
Types Available
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Wafer Type
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Lug Type
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Double Flanged Type
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High-Performance (Double Offset)
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Triple Offset (for high temperature & critical service)
Material of Construction (MOC)
Body
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Cast Iron / Ductile Iron
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Carbon Steel (WCB)
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Stainless Steel (CF8 / CF8M)
Disc
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SS 304 / SS 316
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DI Epoxy Coated
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Nickel-Plated / ENP Coated
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Aluminum Bronze
Seat Options
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EPDM / NBR / Viton
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PTFE
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Metal Seat (for high temperature)
Stem
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SS 410 / SS 304 / SS 316
Pressure Ratings
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PN 10 / PN 16
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Class 150 (High-performance models)
Size Range
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50 mm (2”) to 2000 mm (80”)
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Larger diameters available for special applications
Temperature Range
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–10°C to +120°C (EPDM/NBR)
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Up to +200°C (PTFE seat)
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Up to +425°C (Metal seat – triple offset type)
End Connections
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Wafer — fits between flanges
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Lug — for isolation in pipelines
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Double Flanged — for heavy-duty applications
Operation Types
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Lever Operated
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Gear Operated
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Pneumatic Actuator
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Electric Actuator
Special Features
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Low torque and smooth operation
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Bubble-tight shutoff (soft seated)
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Corrosion-resistant options
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Fire-safe design (high-performance type)
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Suitable for throttling & on/off service
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Lightweight compared to gate/globe valves
Application Industries
Water Supply • HVAC • Chemical • Food & Beverage • Pharma • Power • Oil & Gas • Marine • General Industries
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