Keofitt W9, User Manual, Page: 38 / 50

KEOFITT W9 USER MANUAL V.4 PAGE 38
13.3 Disassembly and assembly of valve body and head
For inspection of the membrane or for cleaning purposes it is necessary to disassemble the valve
(separate the valve head from the valve body).
In order to dissassemble and assemble the valve body and valve head please perform the following
operations:
1. Set the valve head at the OPEN position. For types H and K this is done by turning pos. 6
clockwise.
2. If fitted loosen or unscrew the small set screw (pointer screw pos. 9)
3. Remove the valve head pos. 5. DON’T use a wrench. A tommy bar pos. 8 should be used for
disassembly and assembly. This is carried out by unscrewing pos. 7 until loose and then
pulling the valve head off.
4. Refit the valve head (in the OPEN position) once the necessary parts have been replaced. Care
should be taken not to damage the threads. Use suitable lubricant.
5. Tighten with tommy bar.
6. Fit and tighten the set screw, if wanted/needed; it prevents the valve head from being
inadvertently unscrewed (applies only to type K, H and B).
NOTE
The Tommy bar has been provided to avoid the risk of tightening the nut too much, if using a big
wrench.
When using the Tommy bar you may use your full forces by hand.
IMPORTANT
• In the rare and unlikely event the neck of the valve body comes loose (gets unscrewed together
with the valve head) please contact your dealer or Keofitt to obtain a small tool and instructions
of how to reinsert and secure the valve neck.