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Function detailed solves: The characteristic of butterfly a powerful person intr
From;    Author:Stand originally

Butterfly a powerful person (Butterflyvalve) is to point to shut (valve of a powerful person or butterfly board) for disc, rotate to reach open and a kind of a powerful person that shut around valve shaft, basically rise on conduit cut off and reduce expenditure is used. Butterfly a powerful person is opened shut be form of a disc butterfly board, the axes that circles its oneself inside body of a powerful person rotates, achieve thereby start the end that shut or adjusts. A standard-sized sheet of butterfly a powerful person arrives to close completely is to be less than 90 ° normally, butterfly a powerful person and butterfly lever itself did not lock up ability oneself, for butterfly board fixed position, want to add reducer of outfit worm wheel on lever of a powerful person. Use worm wheel reducer, can make not only butterfly board have lock up ability oneself, make butterfly board stop to be in random locally, return the operation performance that can improve valve.
Industry is special the characteristic of butterfly a powerful person can be high temperature resistant, applicable pressure limits is taller also, valve nominal opens way big, body of a powerful person uses carbolic steeliness to build, the sealing ring of board of a powerful person uses ferrule to replace balata annulus. Butterfly a powerful person uses large high temperature armor plate solders make, basically use at the smoke air channel of high temperature medium and gas conduit.
The advantage of butterfly a powerful person is as follows:
1, open shut obstruction of convenient and rapid, save labour, fluid small, often can operate.
2, the structure is simple, volume is minor, weight is light.
3, can transport slurry, be in charge of liquid of road junction stockpile least.
4, below low pressure, can come true good sealed.
5, adjust performance is good.
The weakness of butterfly a powerful person is as follows:
1, use pressure and working temperature scope are little.
2, sealing is poorer.
Butterfly a powerful person can be divided by configuration to slant buy board type, perpendicular board type, inclined board type and lever type. Can divide by sealed form for sealedder model and hard sealed model two kinds. Soft sealed model introduce balata link commonly sealed, hard sealed model use ferrule normally sealed.
Can divide by join type join for flange and join to placing type; Can divide by transmission way move for the hand, positive drive, pneumatic, fluid is moved and dynamoelectric a few kinds.
The installation of butterfly a powerful person and safeguard should notice the following item:
1, when be being installed, valve of a powerful person should stop in what shut locally.
2, open position should be pressed butterfly board rotate angle will decide.
3, the butterfly a powerful person that contains by-pass valve, by-pass valve should be opened first before open.
4, should undertake installing by the installation manual of the manufactory, the butterfly a powerful person with great weight, should set firm foundation.
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