Now is common valve sealing performance is poor for defects, many buyers and sellers don't even know how to solve, I potow airport valve factory after careful research, a comprehensive discussion, have found the 5 kinds of way to solve the valve sealing performance is poor, the welcome people from all walks of life as well as the reference in the industry. 吗? Poor sealing performance solutions ( 5 ways) 1) Grinding method of fine grinding, eliminate, reduce or eliminate the seal gap and improve the sealing surface degree of finish, in order to improve the sealing performance. 2) Using the method of unbalanced force increase sealing pressure actuator to the valve core must be sealed pressure, unbalanced force trend up to the valve core, valve core of the sealing for the two forces is presupposed, on the other hand, the pressure to the valve core trend closed, valve core sealing for the two forces combined, thus greatly increase the sealing pressure, sealing effect can be more than 5 ~ 10 times higher than that of the former. General dg of 20 or more single seal type of valve for the former, usually in the form of flow type, if that the sealing effect is not satisfied, to flow type closed, sealing performance will be multiplied. Especially the two type of cut off valve, general shall be according to the flow closed type to use. 3) Improve the actuator seal force method improve the actuators on the valve core of the sealing force, also ensure the valve closed, increase the sealing pressure, improve the sealing performance of common method. The commonly used methods are: (1) mobile spring work scope; (2) to switch to smaller stiffness spring; (3) add accessories, such as take locator; (4) increase the air pressure; (5) to switch to have greater thrust actuator. 4) By the method of single seal, soft seal, double seal used by the regulator, can be converted to a single seal, often can improve the sealing effect of more than 10 times, if the unbalanced force is bigger, should increase the corresponding measures, to hard seal valve can convert soft seal, and more than 10 times the sealing effect can be improved. 5) To switch to sealed performance is good Industrial Valves in case of necessity, can consider to use has better sealing performance of valve. Such as the common butterfly valve to switch to the elliptical butterfly valve, and then can also switch to cut off type butterfly Industrial Valves, eccentric rotary valve, ball valve, and specially designed for shut-off valve. Keywords: valve valve sealing performance poor Industrial Valves sealing performance poor solution quickly
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