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9 Manufacturer's information
9.1 Delivery
● Check that all parts are present and check for any damage
immediately upon receipt.
The product's performance is tested at the factory. The scope
of delivery is apparent from the dispatch documents and the
design from the order number.
Control
function
Function Condition as supplied
to customer
1 Normally closed (NC) closed
2 Normally open (NO) open
3 Double acting (DA) undefined
9.2 Packaging
The product is packaged in a cardboard box which can be re-
cycled as paper.
9.3 Transport
1. Only transport the product by suitable means. Do not drop.
Handle carefully.
2. After the installation dispose of transport packaging ma-
terial according to relevant local or national disposal regu-
lations / environmental protection laws.
9.4 Storage
1. Store the product free from dust and moisture in its ori-
ginal packaging.
2. Avoid UV rays and direct sunlight.
3. Do not exceed the maximum storage temperature (see
chapter "Technical data").
4. Do not store solvents, chemicals, acids, fuels or similar
fluids in the same room as GEMÜ products and their spare
parts.
10 Installation in piping
10.1 Use of strainers
If the valve is to be used in gas applications (order code Spe-
cial function G) and if a strainer is to be fitted to the inlet of
the valve, the following points must be observed:
- largest mesh size: max. 1.5 mm
- Test mandrel with diameter 1 mm must not pass through
- For valves with a nominal size of DN 25 and larger, the
strainers must be accessible for cleaning and replacement
without having to undo welded or threaded connections of
the valve.
10.2 Preparing for installation
WARNING
The equipment is subject to pressure!
▶ Risk of severe injury or death.
● Depressurize the plant.
● Completely drain the plant.
WARNING
Corrosive chemicals!
▶ Risk of caustic burns.
● Wear suitable protective gear.
● Completely drain the plant.
WARNING
The actuator cover is under spring pres-
sure!
▶ Risk of severe injury or death!
● Do not open the actuator.
CAUTION
Hot plant components!
▶ Risk of burns.
● Only work on plant that has cooled
down.
CAUTION
Leakage
▶ Emission of dangerous materials.
● Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
CAUTION
Exceeding the maximum permissible pressure.
▶ Damage to the product.
● Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
10 Installation in piping
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