BUTTERFLY VALVE

Butterfly valves are rotary quarter-turn valves that use a circular disc as the closing element to regulate or isolate flow. Depending on design requirements, they can be concentric (symmetric) or eccentric (double or triple offset), offering reliable performance in various flow control applications. There are various types of Butterfly Valves available- wafer, lugged, and double-flanged body types, But In Bangladesh we use wafer Type. Model Number is SD-300W-BV. Fir its Short face-to-face dimensions ensure space-saving installation and reduced material costs.

These valves are equipped with a gear-operated hand wheel and supervisory switch for zone separation and monitoring in fire protection systems. They provide real-time position feedback for automation and safety systems and are suitable for both indoor and outdoor installations.

In accordance with NFPA standards, indicating butterfly valves are used on the fire protection system side of the pump discharge check valve. Placement and installation requirements follow NFPA Clause 4.14.5.2, ensuring optimal safety and performance.