The closing of the valve stem axis and the vertical. Open or close the valve stem, and relatively short trip is very reliable cut, enables the valve movement is very suitable for medium or adjustment of cutting and throttling. Globe valve disc once in an open, it is the seat and clapper sealing surfaces of contact between will no longer, and has very reliable, cutting action to the valve is very suitable for medium cutting or adjustment and throttling.
Globe valve is opened, it once the seat and clapper sealing surfaces will have no contact between the sealing machine, thus it smaller, because wear of the closing of the valve seat and disc is easy to repair or replace seal components without the whole valve from line down, the valve and pipeline welding for into the situation is very suitable. Through such media flow direction when the valve is changed, so the globe valve flow resistance is higher than other valves.
Common cut-off valve has the following kinds: 1) type cut-off valve, Globe valves in Angle, fluid just change a direction that through this valve pressure drop than the conventional structure of the globe valves. 2) injector cut-off valve, In the injector or y globe valves with flow in the body, as a mainstream cross-court so the extent of damage than normal cut-off valve, and pressure loss through the valve and the corresponding small. 3) piston type cut-off valve, this form of globe valve is normal cut-off valve variant. In the valve, disc and seat is usually based on the principle of piston design. Disc ChengZhu polished with stem, globe valve seal is set in the column of two resilient sealing ring fort. Two resilient sealing off with a lantern ring and by the bonnet nuts on the cover of the load on the sealing ring around the plunger pressed firmly. Elastic sealing can change, can use variety of materials, the valve is mainly used for "open" or "off", but with special form of the globe valve piston or special lantern ring, can also be used to adjust flow.