Bellows valve type According to the position of stem thread is divided into external thread type, internal thread type. According to the direction of the media, there are straight-through, direct-current and angle-type. Cut-off valve in accordance with the form of sealing, there are packing seal cut-off valve and bellows sealing valve.
Installation and maintenance of bellows gate Valve The following matters should be noted:
1, Handwheel, handle operation of the cut-off valve can be installed in any position of the pipeline.
2, Handwheel, handle and Wei move mechanism, not allowed for hoisting.
3, the flow of the media should be consistent with the direction indicated by the valve body.