ïƒ E-mail: sales@mingpinmetals.com;1271399573@qq.com ï‚• Tel : +86-551-64211984
ïƒ E-mail: sales@mingpinmetals.com;1271399573@qq.com ï‚• Tel : +86-551-64211984
Views: 9 Author: Site Editor Publish Time: 2021-04-15 Origin: Site
Under the action of the fluid pressure flowing in one direction, the valve disc opens, when the fluid flows in the opposite direction, the fluid pressure and the self-coincidence of the valve disc act on the valve seat, thereby cutting off the flow.
Among them, the swing check valve belongs to this type of valve. The swing check valve has a hinge mechanism and a valve disc like a door that rests freely on the inclined valve seat surface.
In order to ensure that the valve disc can reach the proper position of the valve seat surface every time, the valve disc is designed in a hinge mechanism so that the valve disc has enough space for turning and makes the valve disc truly and comprehensively contact the valve seat.
The valve disc can be made of metal, rubber, or synthetic covering can be inlaid on the metal, depending on the performance requirements.
When the swing check valve is fully opened, the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small.
Except that the disc can be raised and lowered freely, the rest of this valve is like a shut-off valve. The fluid pressure lifts the disc from the seat sealing surface, and the return of the medium causes the disc to fall back onto the seat and cut off the flow.
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