Week 14 challenge

I write a report on butterfly valve its includes

Is a valve in which the closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to open and close the valve, which mainly plays the role of cutting off and throttling in the pipeline.

its very useful in industrise also.Butterfly valve opening and closing member is a disc-shaped butterfly plate, in the valve body around its own axis rotation, so as to achieve the purpose of opening and closing or adjustment, butterfly valve fully open to fully closed is usually less than 90 °, butterfly valve and butterfly stem itself does not have self-locking ability, in order to the positioning of the butterfly plate, to add a worm gear reducer on the stem.

in this valve no of parts is used it is very useful to dicharge the fluid which is used in industris.

in this lever,dise,retainer,nut,bolt,etc are used.