Industrial valves are gradually in development

Add Time:2014-12-02 Hits:546

If the comparison of electric valve action slow or electric control valve which in the work of the medium viscosity is too large, have lead to plugging and coking phenomenon, so as to accelerate the aging and extrusion filler filler. Electric two regulating valve and is what we in the examination does not apply when the electric control valve must be aware of the remaining medium, or medium after hardening and will increase the difficulty of removal or makes use of different normal regulating valve. Especially the puzzle with corrosion medium will cause unnecessary trouble in regulating valve. Because of the large amount of leakage will be caused by such electric regulating valve spool or valve seat is corrosion, wear loose or thread of the valve seat; corrosion; foreign body seat, the valve core; the beginning point of the valve (open call) or end (electric closed) did not adjust well.
Electric control valve manufacturing quality caused by the leakage of the valve manufacturer in the production process of valve material, machining process, assembly process control is not strict, resulting in the sealing surface grinding and unqualified, pitting, trachoma and other defects of products are not completely removed, resulting in electric control valve inner leakage. Solution: re machining the sealing surface.
We sometimes find electric regulating valve will shock, tweet, as long as this is because electric regulating valve regulating sensitive are too high, appropriate adjustments to the implementation of this shock is generated and fluid pressure too much, while the actuator thrust is not enough, which makes the selection of regulating valve becomes larger, the electric control valve often work in the small opening, the medium flow direction and the valve closing direction is the same, and in some other places near the shock that affects the electric control valve and can not have a good supporting role.


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