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10. Press the diaphragm face tightly onto the backing dia-
phragm manually so that it returns to its original shape
and fits closely on the backing diaphragm.
11. Align the weir of compressor and diaphragm in parallel.
12. Check the technical condition and function of the valve
prior to commissioning and during the total term of use.
13. Carry out checks regularly and determine the test intervals
in compliance with the conditions of use and/or the regu-
latory codes and provisions applicable for this application.
18.6 Mounting the actuator
Diaphragms set in the course of time.
After valve disassembly / assembly check that the fasten-
●
ing elements on the body are tight and retighten as ne-
cessary (at the very latest after the first sterilization pro-
cess).
1. Move the actuator A to the open position.
2. Position actuator A with the mounted diaphragm on the
valve body.
ð Diaphragm size 8: Take care to align the compressor
weir and valve body weir.
3. Tighten fastening elements by hand (hand tight only)
(fastening elements may vary dependent on diaphragm
size and / or valve body version).
▶ GEMÜ recommends using new screws that are coated ac-
cordingly to prevent galling.
4. Move the actuator A to the closed position.
5. Fully tighten fastening elements diagonally.
6. Ensure even compression of the diaphragm (approx. 10 to
15%).
ð Even compression is detected by an even bulge to the
outside.
Please note: For a code 5M diaphragm (convex dia-
phragm), the PTFE diaphragm face and the EPDM
backing diaphragm must be positioned level with and
parallel to the valve body.
7. With the valve fully assembled, check the function and
tightness.
19 Disposal
1. Pay attention to adhered residual material and gas diffu-
sion from penetrated media.
2. Dispose of all parts in accordance with the disposal regu-
lations/environmental protection laws.
www.gemu-group.com
NOTICE
NOTICE
20 Returns
Legal regulations for the protection of the environment and
personnel require that the completed and signed return deliv-
ery note is included with the dispatch documents. Returned
goods can be processed only when this note is completed. If
no return delivery note is included with the product, GEMÜ
cannot process credits or repair work but will dispose of the
goods at the operator's expense.
1. Clean the product.
2. Request a return delivery note from GEMÜ.
3. Complete the return delivery note.
4. Send the product with a completed return delivery note to
GEMÜ.
39 / 42
20 Returns
GEMÜ 650TL
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