Please pay attention to the following points when repairing high platform ball valves

The following points should be noted when repairing high platform ball valves

High-platform ball valves are widely used, and the maintenance of high-platform ball valves should focus on the following three points:

  1. Disconnect power or air supply;

  2. Remove the line pressure and put the valve in the open position;

  3. Disengage the actuator from the bracket.

High platform ball valve

High platform ball valve packing is relocked

  1. If there is micro-bleedage at the filler culvert, the stem nut must be locked again;
  
  2. Pay attention not to lock too tight, usually lock 1/4 turn ~ 1 turn, the leak will be interrupted.


High platform ball valve exchange stainless steel ball valve seat and seal:

  1. The valve is placed in a half-open position to flush and eradicate dangerous substances that may exist in the valve body surface;

  2. Close the ball valve, remove the coupling bolts and nuts on the flanges at both ends, and then completely remove the valve from the pipeline;

  3. Disassemble the drive equipment in sequence - actuator, coupling bracket, lock washer, stem nut, butterfly shrapnel, Glam, wear plate, stem packing;

  4. Disassemble the body cover coupling bolts and nuts, separate the valve cover from the valve body, and remove the bonnet gasket;

  5. The confeder ball is in the "off" position, which can be taken out from the valve body briefly, and then the valve seat is taken out;