Threaded gate valve has the following advantages: 1, the structure is simple, more convenient manufacturing and maintenance. 2, small work schedule, opening and closing time is short. 3, good sealing, sealing surface friction, longer life expectancy. Thrust gate valve shortcomings are as follows: 1, the fluid resistance, opening and closing the required force larger. 2, does not apply to the particles with a larger viscosity, easy to coking medium. 3, adjust the performance is poor. Threaded gate valve type according to the location of the stem thread male and female threaded type. By media flow points, there are straight-through, DC and angle. Globe valve by sealing form, there are packing bellows gate valve and bellows seal valve. More Search Keywords: Gate valve