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