1. The structure is simple. It’s relatively easy to manufacture and maintain.
2. The working distance is small. The time for opening and closing is short.
3. The sealing performance is good. The friction between sealing surface is small. Long service life.
1. Fluid resistance is large. The force required to open and close it is large.
2. It’s not suitable for medium that has particles, large viscosity, and is easy to coke.
3. Poor regulating performance.
According to the position of the stem thread, sanitary shut-off valve can be divided into external thread type and internal thread type. According to the flow direction of the medium, there’re straight type, direct flow type and angle type. According to the form of sealing, there’re packing sealing type and bellows sealing type.