The opening and closing parts of J41H, J41Y, J41W API globe valves are cylindrical discs with a flat or conical sealing surface and the disc moves in a straight line along the center line of the fluid. National standard globe valve is only suitable for full open and full close, generally do not have to adjust the flow, custom allowed to adjust and throttle.

1. Simple structure, convenient manufacturing and maintenance.

2, small working trip, short opening and closing time.

3, good sealing, sealing surface friction between small, long life.