Working principle and characteristics of butterfly valve
Release time:
2024-04-08
First, the working principle The butterfly valve is based on the rotary valve to open and close the valve, driving the disc plate to rotate. In the cylindrical channel of the butterfly body, the disc rotates around the axis, mainly rotating the plate 90 degrees. When the flow control disc reaches 90 degrees, the valve is fully opened, and the medium flow can be adjusted by changing the angle of the valve. Usually installed in the diameter direction of the pipe. The butterfly valve and the stem itself have no locking function. In order to effectively control the flow, a worm gear reducer is required. The butterfly valve with worm gear reducer can not only automatically lock the butterfly valve, but also change the working performance of the butterfly valve and adjust the medium flow more accurately.
First, the working principle
The butterfly valve is based on the rotary valve to open and close the valve, driving the disc plate to rotate. In the cylindrical channel of the butterfly body, the disc rotates around the axis, mainly rotating the plate 90 degrees. When the flow control disc reaches 90 degrees, the valve is fully opened, and the medium flow can be adjusted by changing the angle of the valve. Usually installed in the diameter direction of the pipe. The butterfly valve and the stem itself have no locking function. In order to effectively control the flow, a worm gear reducer is required. The butterfly valve with worm gear reducer can not only automatically lock the butterfly valve, but also change the working performance of the butterfly valve and adjust the medium flow more accurately.
II,Characteristics
(1) Simple structure and small shape. Compact structure, short length, small size, light weight, suitable for large diameter.
(2) the fluid resistance is small. When fully open, the effective flow area of the valve channel is large and the fluid resistance is small.
(3) Convenient and fast opening and closing, good performance adjustment, turning 90 degrees. Can be opened and closed. By changing the disc rotation angle, the flow rate can be controlled in layers.
(4) The butterfly plates on both sides of the rotating shaft are basically the same as the medium, and the direction of torque is generated, so the switching torque is very small. On the contrary, opening and closing are easier.
(5) The low-pressure sealing performance is good, and the sealing surface material is generally made of rubber and plastic, with good sealing performance. The butterfly valve is limited by the sealing ring material, and the working pressure and working temperature range are low. But the use of hard seal butterfly valve pressure and working temperature range has been greatly improved.
Related News
Service Hotline
Address: No. 805, Wen 1st Road, Industrial Block, Bihu Town, liandu district, Lishui City, Zhejiang Province
Telephone:86-577-67358455
Mobile:86-15857877666
Mailbox:carter.zhou@boyevalve.com