the cut-off valve stem and valve seat sealing surface vertical axes. Open or close the valve stem travel relatively short, and very reliable cutting action, makes this valve very suitable for used as medium cut or adjust and throttling. Cut-off valve disc once in an open position, it is no longer the contact between the seat and clapper sealing surfaces, and have a very reliable cutting action, close to the valve is very suitable for used as medium cut or adjust and throttling.

once stop valve is fully open, it will no longer have a contact between the seat and clapper sealing surfaces, and thus its sealing surface mechanical wear and tear is small, because most of the cut-off Industrial Valves seat and valve disc is easy to repair or replace the whole valve sealing components without removed from the pipeline, that for valves and pipeline welding into one occasion is very applicable. Flow direction of medium through the valve changed, so stop valve flow resistance was higher than that of other valves.

commonly used globe valve has the following kinds: 1) The Angle type globe valve; Only need to change in Angle type cut-off valve, fluid direction at a time, so that through this valve pressure drop is smaller than conventional structure of the valve. 2) Once-through globe valve; In once-through or y-shaped cut-off valve, the valve port from the mainstream way into a diagonal lines, so that the flow state damage than conventional cut-off valve, and pressure loss across the valve and the corresponding small. 3) Plunger valve: this form of cut-off valve is normal variant of globe valve. In the valve, the valve disc and seat is usually designed on the basis of the principle of plunger. Disc polishing pillars plug connected to the stem, the seal is set in the column inserting two elastic sealing ring. Two elastic sealing ring with a set of rings is separated, and through the bonnet nut of load on the valve cover pressed around the plunger seal. Elastic sealing ring to replace, can use a variety of materials, the valve is mainly used for & other; Open & throughout; Or & other; Customs & throughout; , but with a special form of plunger or special thimble, can also be used to adjust flow

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