Description
Temperature Range:
Rubber Lined Valves: -10°C to +120°C
PTFE Lined Valves: -20°C to +200°C
Metal Seated Valves: Up to 600°C
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Butterfly Valve
A Butterfly Valve is a compact, quarter-turn valve used to regulate or isolate the flow of various media like liquids, gases, and slurries. Its main feature is a rotating disc mounted on a central shaft, which turns 90° to open or close the valve. Widely recognized for its lightweight design, low cost, and quick operation, butterfly valves are suitable for a variety of industrial applications.
Size
DN: 40 mm to 1600 mm (1½” to 64”)
Standard Sizes: DN 50, 65, 80, 100, 150, 200, 250, 300, 400, 600, 800, 1000, etc.
Types
Types of Butterfly Valves:
- Wafer Type: Designed to fit between two flanges; held in place by flange bolts.
- Lug Type: Has threaded lugs outside the valve body to connect bolts for each flange.
- Flanged Type: Flanges at both ends for direct bolting to pipeline flanges.
- Double Offset (High Performance): Minimizes seat contact during operation; better sealing and longer life.
- Triple Offset (Metal Seated): Designed for zero-leakage applications under high pressure/temperature.
- PTFE/PFA Lined Type: For aggressive chemical applications.
- Rubber Lined Type: General-purpose, suitable for water and mild chemicals.
