Butterfly valve working principle:
Butterfly valve is according to rotate the valve stem drive disc rotating at the same time for opening and closing of a butterfly valve, cylindrical channels in butterfly valve body, disc disc around the axis of rotation, mainly is 90 ° rotating disc plate for flow control, when the disc plate reaches 90 ° butterfly valve in the fully open position, at the same time can change the Angle of the disc plate to adjust the medium flow rate, generally installed on the diameter of the pipe direction. Butterfly valve and stem itself is no locking ability, in order to effectively adjust the flow need to install worm gear reducer, add worm gear reducer butterfly valve not only make the butterfly valve has self-locking ability, but also can change the operating performance of butterfly valve and more accurate regulation of medium flow.
1. Butterfly valve has small flow resistance when fully opened. When open in about 15 ° ~ 70 °, and can perform a sensitive flow control, thus in the field, the regulation of large diameter butterfly valve application is widespread. Most butterfly valves can be used in media with suspended solids because of the wipeability of the disc movement. Depending on the strength of the seal, it can also be used in powdery and granular media.
2. Butterfly valve is suitable for flow regulation. Since the pressure loss of butterfly valve in the pipe is relatively large, which is about three times of the gate valve, when selecting butterfly valve, the influence of pressure loss on the pipeline system should be fully considered, and the strength of butterfly plate under the pressure of pipeline medium should be considered when closing. In addition, it is important to consider the temperature limitation of the resilient seat material at high temperatures.
3. Butterfly valve has small structural length and overall height, fast opening and closing speed, and good fluid control characteristics. The structure principle of butterfly valve is suitable for making large diameter butterfly valve. When the butterfly valve is required for flow control, it is important to select the correct specification and type of butterfly valve so that it can work properly and effectively.
That’s all for my sharing for the Butterfly valve working principle,and we are the Butterfly Valve Manufacturer,welcome to purchase our products.