6.3 Replacement sealing washer
R
eplace the PTFE sealing washer in
valves
Follow the instructions below to replace the sealing washer.
Step Action
1 Unscrew the retaining nut at the bottom of the valve with help of the handle.
2 Insert the new PTFE sealing washer in the positioning disc.
3 Insert the positioning disc in the square of the tapered plug (the PTFE sealing
washer has to touch the body).
4 Insert the dished washer (the larger diameter has to touch the positioning
disc).
5 Tighten the retaining nut until the dished washer is flat.
6 Tighten the retaining nut up 1/4 turn.
7 Stabilize the valve for 24 hours, minimum (as PTFE is a floating material).
8 Screw the retaining nut off 3/8 turn (the tightening torque of the retaining
nut is 1.5 Nm).
6 Maintenance
6
.3 Replacement sealing washer
98
BPG Columns Operating Instructions 29193223 AB
To Next Page
Loading...
