What is a butterfly valve?

24/06/2022

1. What is butterfly valve? Butterfly valve, English name is Butterfly valve, shortened to butterfly valve or butterfly valve, is an industrial valve used to regulate (open / close) the flow in pipelines with many different sizes. Due to its structure, it looks like a butterfly, so it is called  butterfly valve for short. The valve opens/closes the fluid thanks to the disc element that can rotate around the shaft at different angles. Normally butterfly valves are controlled by levers, cranks or electrical or pneumatic actuators. Along with gate valve, knife valve, ball valve, butterfly valve is one of the types of quick-closing / quick-opening valves. Butterfly valve has a simple, compact structure, and especially the cost to buy this valve is lower than other industrial valves with the same function. 2. Structure & working principle of butterfly valve