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12 Commissioning
WARNING
Corrosive chemicals!
▶ Risk of caustic burns.
● Wear suitable protective gear.
● Completely drain the plant.
CAUTION
Leakage
▶ Emission of dangerous materials.
● Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
CAUTION
Cleaning agent
▶ Damage to the GEMÜ product.
● The plant operator is responsible for selecting the clean-
ing material and performing the procedure.
1. Check the tightness and the function of the product (close
and reopen the product).
2. Flush the piping system of new plant and following repair
work (the product must be fully open).
ð Harmful foreign matter has been removed.
ð The product is ready for use.
3. Commission the product.
4. Commissioning of operators in accordance with the en-
closed instructions.
13 Operation
Operate the product according to the control function (see
also chapter "Pneumatic connections").
13.1 Control function 1
In its resting position the product is closed by spring force.
1. Activate the actuator via control medium connector 2.
ð The product opens.
2. Vent the actuator via control medium connector 2.
ð The product closes.
13.2 Control function 2
In its resting position the product is opened by spring force.
1. Activate the actuator via control medium connector 4.
ð The product closes.
2. Vent the actuator via control medium connector 4.
ð The product opens.
13.3 Control function 3
In its resting position the product has no defined normal posi-
tion.
1. Activate the actuator via control medium connector 2.
ð The product opens.
2. Activate the actuator via control medium connector 4.
ð The product closes.
13 Operation
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