Inspection And Maintenance; Cleaning The Product; Atex Version; Removing The Butterfly Valve From The Piping - GEM R478 Tugela Operating Instructions Manual

18 Inspection and maintenance

The equipment is subject to pressure!
▶ Risk of severe injury or death.
Depressurize the plant.
●
Completely drain the plant.
●
Use of incorrect spare parts!
▶ Damage to the GEMÜ product.
▶ Manufacturer liability and guarantee will be void.
Use only genuine parts from GEMÜ.
●
Hot plant components!
▶ Risk of burns.
Only work on plant that has cooled
●
down.
Exceptional maintenance work!
▶ Damage to the GEMÜ product.
Any maintenance work and repairs not described in these
●
operating instructions must not be performed without
consulting the manufacturer first.
The operator must carry out regular visual examination of the
products depending on the operating conditions and the po-
tential danger in order to prevent leakage and damage.
1. Have servicing and maintenance work performed by
trained personnel.
2. Wear appropriate protective gear as specified in plant op-
erator's guidelines.
3. Shut off plant or plant component.
4. Secure plant or plant component against recommission-
ing.
5. Depressurize the plant or plant component.
6. Actuate products which are always in the same position
four times a year.

18.1 Cleaning the product

• Clean the product with a damp cloth.
• Do not clean the product with a high pressure cleaning
device.

18.2 ATEX version

1. Perform inspection and maintenance , see chapter "Install-
ation of standard version".
2. Test the resistance between the earthing cable and actu-
ator shaft at least once a year. (Value <106 Ω, typical value
<5 Ω)
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WARNING
CAUTION
CAUTION
NOTICE

18.3 Removing the butterfly valve from the piping

The equipment is subject to pressure!
▶ Risk of severe injury or death.
Depressurize the plant.
●
Completely drain the plant.
●
1. Maintenance work must only be performed by trained per-
sonnel.
2. Use appropriate protective gear as specified in plant oper-
ator's guidelines.
3. Move the butterfly valve to a slightly open position. The
disc must not project from the body.
4. Loosen and remove flange bolts and nuts.
5. Spread the piping flanges.
6. Remove the butterfly valve.
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18 Inspection and maintenance
WARNING
WARNING
Corrosive chemicals!
▶ Risk of caustic burns.
Wear suitable protective gear.
●
Completely drain the plant.
●
CAUTION
Hot plant components!
▶ Risk of burns.
Only work on plant that has cooled
●
down.
GEMÜ R478 Tugela