Principle and structure of cut-off valve
The axes of the valve stem and the seat sealing surface are vertical. Open or close of the valve stem are relatively short trip is very reliable cut movement, is very suitable as adjustment,cutting and throttling for medium.
Globe valve disc is once in an open, contact between the seat and clapper sealing surfaces will no longer exist, and has very reliable cutting action, is very suitable for medium cutting, adjustment or throttling.
Globe valve is once opened, the seat and clapper sealing surfaces will have no contact, thus abrasion is smaller between the sealing machine, 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 conditions is very suitable. The direction of medium through this kind valve is changed, so the globe valve flow resistance force is higher than other valves.
