Mounting The Diaphragm; Mounting A Concave Diaphragm; Removal From Piping; Disposal - Gemü R647 Betriebsanleitung

16 Removal from piping

15.4 Mounting the diaphragm

15.4.1 General information
▶ Fit the diaphragms suitable for the product (suitable for
medium, medium concentration, temperature and pres-
sure). The diaphragm is a wearing part. Check the tech-
nical condition and function of the product before com-
missioning and during the whole term of use. Carry out
checks regularly and determine the check intervals in ac-
cordance with the conditions of use and/or the regulatory
codes and provisions applicable for this application.
▶ If the diaphragm is not screwed into the adapter far
enough, the closing force is transmitted directly onto the
diaphragm pin and not via the compressor. This will
cause damage and early failure of the diaphragm and
leakage of the product. If the diaphragm is screwed in too
far, perfect sealing at the valve seat will not be achieved.
The function of the product is no longer ensured.
▶ Incorrectly mounted diaphragms cause the product leak-
age and emission of medium. In this case, remove the
diaphragms, check the complete valve and diaphragms
and reassemble again proceeding as described above.

15.4.2 Mounting a concave diaphragm

1
1. Position the diaphragm 2 on the valve body 1.
2. Align the tab with the manufacturer and material identific-
ation in parallel to the valve body weir.
3. Check whether the hole patterns of the actuator A, dia-
phragm 2 and valve body 1 match.
15.5 Fitting the actuator on the valve body
1. Position the actuator A on the valve body 1 with the posi-
tioned diaphragm 2. Take care to align the diaphragm weir
and valve body weir.
2. Tighten the bolts 18, washers 19 and nuts 20 by hand.
3. Tighten the bolts 18 or nuts 20 diagonally.
4. Check the fully assembled valve for leaks.
GEMÜ R647
NOTICE
NOTICE
NOTICE
▶ Service and maintenance:
Diaphragms set over the course of time. After installing/
removing the valve, always retighten the bolts 18 or nuts
20 (see Chapter "Spare parts").
5. Ensure even compression of the diaphragm (approx. 10 to
15%).
ð Even compression is detected by an even outer bulge.
16 Removal from piping
1. Remove in reverse order to installation.
2. Deactivate the control medium.
3. Disconnect the control medium line(s).
4. Disassemble the product. Observe warning notes and
safety information.

17 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.

18 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
A
goods at the operator's expense.
1. Clean the product.
2 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.
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NOTICE
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