Actuator Mounting On The Valve Body; Commissioning; Inspection And Servicing - Gemü 695 Originalbetriebsanleitung

11.4 Actuator mounting
on the valve body
1. Move actuator A to the open position.
2. Position actuator A with the mounted
diaphragm 2 on the valve body 1,
aligning the diaphragm weir and valve
body weir.
3. Insert and tighten the bolts 18 with
washers 19 by hand (hand tight only).
4. Move actuator A to the closed position.
5. Fully tighten the bolts 18 diagonally.
6. Ensure that the diaphragm 2 is
compressed evenly (approx. 10-15 %,
visible by an even bulge to the outside).
7. Check tightness of completely
assembled valve.
Important:
Service and maintenance:
Diaphragms loose seal compression
in the course of time. After valve
assembly / disassembly check that
the bolts and nuts on the body are
tight and retighten as necessary
(at the very latest after the fi rst
sterilisation process). Bolt tightness
/ valve sealing should be checked
on a regular basis and points 6-7 of
chapter 11.4 should be repeated.

12 Commissioning

WARNING
Corrosive chemicals!
® Risk of caustic burns!
Check the tightness of the
G
media connections prior to
commissioning!
Use only the appropriate
G
protective gear when
performing the tightness
check.
695_us
Protect against leakage!
Provide precautionary measures
G
against exceeding the maximum
permitted pressures caused by
pressure surges (water hammer).
Prior to cleaning or commissioning the
plant:
Check the tightness and the function of
G
the diaphragm valve (close and reopen
the diaphragm valve).
If the plant is new and after repairs rinse
G
the piping system with a fully opened
diaphragm valve (to remove any harmful
foreign matter).
Cleaning:
The plant operator is responsible for

selecting the cleaning material and
performing the procedure.

13 Inspection and servicing

The equipment is subject to pressure!
® Risk of severe injury or death!
Only work on depressurized plant.
G
Hot plant components!
® Risk of burns!
Only work on plant that has
G
cooled down.
34 / 44
WARNING
WARNING
WARNING