PPR lift valve characteristics and advantages and disadvantages

Globe valve: refers to the closed (valve) moves along the seat centre line valve. According to this mobile form of disc, seat vents are and are proportional to the valve stroke. Due to open or close the valve stem stroke is relatively short, but very reliable cutting function, and port of the valve seat travel proportional relationship with the disc, very suitable for regulation of the flow. Therefore, this type of valve is moved to cooperation to cut off or adjusting the throttle.