A butterfly valve is a type of quarter-turn valve that uses a disc-shaped closure element to control flow. While, A gate valve is a linear motion valve that uses a sliding gate or wedge-shaped closure element to control flow.
2 key differences between butterfly valves and gate valves:
Butterfly valves operate on a quarter-turn principle, while gate valves operate on a linear motion principle. Butterfly valves require a 90-degree rotation to open or close, while gate valves require upward or downward movement to open or close.
Butterfly valves provide excellent flow control with low-pressure drop, making them suitable for large flow rates. Gate valves, on the other hand, can have higher pressure drops due to the obstruction caused by the gate/wedge.