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GEMÜ 639 eSyStep
Positioner (Code S0)
14.6 Mounting the actuator
NOTICE
Diaphragms set in the course of time
▶
Leakage.
●
After disassembly/assembly of the product, check that
the bolts and nuts on the body are tight and retighten if
required.
●
Retighten the bolts and nuts at the very latest after the
first sterilisation process.
1. Move the actuator
A
to the open position.
2. Position actuator
A
with the mounted diaphragm on the
valve body.
3. Screw in bolts, washers and nuts hand tight.
ð
Fastening elements may vary depending on the dia-
phragm size and/or valve body version.
4. Move the actuator
A
to the closed position.
5. Open actuator
A
approx. 20%.
6. Fully tighten the bolts with nuts diagonally.
7. Ensure even compression of the diaphragm (approx. 10 to
15%).
ð
Even compression is detected by an even outer bulge.
8. With the valve fully assembled, check the function and
tightness.
9. Carry out initialisation.
14 Inspection and maintenance