Installation With Solvent Cement Spigots; After The Installation; Commissioning - GEM R677 Operating Instructions Manual

12 Commissioning

Connector elements
▶ The connector elements are not included in the scope of
delivery.
Only use connector elements made of approved materi-
●
als.
Observe permissible tightening torque of the bolts.
●
1. Keep sealing material ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Ensure clean, undamaged sealing surfaces on the connec-
tion flanges.
4. Align flanges carefully before installing them.
5. Clamp the product centrally between the piping with
flanges.
6. Centre the gaskets.
7. Connect the valve flange and the piping flange using ap-
propriate sealing materials and matching bolting.
8. Use all flange holes.
9. Tighten the bolts diagonally.
10. Re-attach or reactivate all safety and protective devices.

11.5 Installation with solvent cement spigots

Fig. 4: Solvent cement spigot
▶ The solvent cement is not included in the scope of deliv-
ery.
Only use suitable solvent cement!
●
1. Carry out preparations for installation (see chapter "Pre-
parations for installation").
2. Apply solvent cement on the outside of the valve body
spigots and on the inside of the piping as specified by the
solvent cement manufacturer.
3. Connect the body of the product with the piping.
4. Reactivate all safety and protective devices.
GEMÜ R677
NOTICE
NOTICE

11.6 After the installation

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 sterilization process.
● Re-attach or reactivate all safety and protective devices.
12 Commissioning
Corrosive chemicals!
▶ Risk of caustic burns
●
●
Leakage!
▶ Emission of dangerous materials
Provide precautionary measures 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 the valve (close
●
and reopen the valve).
If the plant is new and after repairs rinse the piping sys-
●
tem with a fully opened valve (to remove any harmful for-
eign matter).
Cleaning agent
▶ Damage to the GEMÜ product.
The plant operator is responsible for selecting the clean-
●
ing material and performing the procedure.
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 sterilization process.
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NOTICE
WARNING
Wear appropriate protective gear.
Completely drain the plant.
CAUTION
NOTICE
CAUTION
NOTICE
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