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Ball Valve Body Device

Remove the protective cover on both sides of the flange and rinse clean while the valve is fully open. Before installation, according to the provisions of the signal (electricity or gas) for the whole machine test (to prevent the vibration caused by the use of transport performance), qualified before the on-line installation. Before piping, piping and removing any remaining impurities in the clean pipe (these substances may damage the seat and the ball.) During installation, Institutions and accessories.Ball Valve

This type of valve should be installed in the horizontal or vertical direction of the pipe. Installation pipeline near the pipeline can not be low or bear the phenomenon of external force, you can use the pipe support or support to eliminate the deviation of the pipeline. After connecting to the pipe, cross the flange connection bolts with the specified torque.Ball Valve

Remove the valve in a half open position, rinse, remove the valve body may exist inside and outside the dangerous substances. Close the 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 unit, the actuator, the connection bracket, the lock washer, the stem nut, the butterfly shrapnel, the grid, the wear plate, the stem packing, the removal body cover bolts, the nut, the valve cover and the valve body , And remove the bonnet washer.Ball Valve

Confirm that the ball is in the "off" position, which can be easily removed from the valve body, and 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 the stem under the packing. Please be careful to avoid scratching the stem surface and the valve body stuffing box sealing parts, re-assembly cleaning and inspection of the removal of parts, it is strongly recommended to use spare parts package to replace its seat and valve cover gasket and other seals l Sequential assembly. With the specified torque, cross-locking flange bolts. Use the specified torque to lock the stem nut.Ball Valve