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The Use Of Electric Ball Valve And Performance

Oct 18, 2017

The advantages of electric ball valve: fluid resistance is small, full diameter ball valve is basically no flow resistance. Easy maintenance, electric ball valve structure is simple, the seals are generally active, demolition and replacement are more convenient. Simple structure, small size, light weight. Easy to operate, open and close quickly, from full open to full clearance as long as the rotation 90 °, easy to remote control. Since the ball valve in the opening and closing process has a wipe, it can be used for suspension of solid particles in the medium. Close and reliable.Ball Valve

It has two sealing surface, and the current ball valve sealing surface material widely used in a variety of plastic, good sealing, to achieve a complete seal. In the vacuum system has also been widely used. When fully open or fully closed, the ball and valve seat sealing surface and the media isolation, the media through, will not cause the valve sealing surface erosion. Applicable to a wide range of diameter from small to a few millimeters, large to a few meters, from high vacuum to high pressure can be applied. Electric ball valve filler at the re-lock, if the filler at the occurrence of micro-leakage, to lock the stem nut. Note: Do not lock too tight, usually lock 1/4 turn to 1 turn, the leak will stop.Ball Valve

Replace the valve seat and seal, remove the valve in the semi-open position, rinse, remove the valve body may exist inside and outside the dangerous substances. Close the electric ball valve, remove the connecting bolts and nuts on both sides of the flange, and then remove the valve completely from the line. Remove the drive in sequence - actuators, connecting brackets, loose washers, stem nuts, butterfly shrapnel, ginnam, wear plate, stem packing. Remove the cover and connect the nut and nut to separate the bonnet from the valve body and remove the bonnet gasket. Make sure the ball valve is in the "off" position, which can be easily removed from the valve body, then remove the seat. Slide the valve stem down the hole in the valve body until it is completely removed, then remove the O-ring and stem underfill. CAUTION: Carefully operate to avoid scratching the stem surface and the valve body stuffing box seal.Ball Valve