A Cast Iron (CI) Butterfly Valve is a quarter-turn rotary valve designed for regulating, isolating, and controlling fluid flow in pipelines. The valve operates by rotating a disc inside the pipeline, allowing quick shut-off and efficient throttling with minimal pressure loss.
Construction Details
Body Material: Cast Iron (CI)
Disc Material: Cast Iron / Ductile Iron / Stainless Steel (as required)
Seat Material: EPDM / NBR / PTFE (soft seated for tight shut-off)
Shaft: Stainless Steel for corrosion resistance
End Connection: Wafer / Lug / Flanged type
Operating Mechanism
The valve works on a 90-degree rotation principle, operated manually using a lever or gearbox, or automatically using pneumatic/electric actuators.
Pressure Rating
PN10 / PN16 or Class 150 (depending on design requirement)
Applications
Water supply systems
HVAC systems
Fire protection systems
Industrial piping
Irrigation networks
Features
Compact and lightweight design
Low pressure drop
Quick operation (quarter-turn)
Bi-directional sealing capability
Easy maintenance and installation
Standards (if applicable)
API 609
BS EN 593
IS 13095
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