Installation In Piping; Preparing For Installation; Installation With Butt Weld Spigots - Gemü R677 Betriebsanleitung

12 Installation in piping

12.1 Preparing for installation

The equipment is subject to pressure!
▶ Risk of severe injury or death
Depressurize the plant or plant com-
●
ponent.
Completely drain the plant or plant
●
component.
Corrosive chemicals!
▶ Risk of caustic burns
Wear appropriate protective gear.
●
Completely drain the plant.
●
Hot plant components!
▶ Risk of burns
Only work on plant that has cooled
●
down.
Maximum permissible pressure ex-
ceeded!
▶ Damage to the product!
Provide for precautionary measures
●
against exceeding the maximum per-
missible pressure that may be caused
by pressure surges (water hammer).
Use as step!
▶ Damage to the product
▶ Risk of slipping-off
Choose the installation location so that the product can-
●
not be used as a foothold.
Do not use the product as a step or a foothold.
●
Suitability of the product!
▶ The product must be appropriate for the piping system
operating conditions (medium, medium concentration,
temperature and pressure) and the prevailing ambient
conditions.
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WARNING
WARNING
CAUTION
CAUTION
CAUTION
NOTICE
Tools!
▶ The tools required for installation and assembly are not
included in the scope of delivery.
Use appropriate, functional and safe tools.
●
1. Ensure the product is suitable for the relevant application.
2. Check the technical data of the product and the materials.
3. Keep appropriate tools ready.
4. Wear appropriate protective gear, as specified in the plant
operator's guidelines.
5. Observe appropriate regulations for connections.
6. Have installation work carried out by trained personnel.
7. Shut off plant or plant component.
8. Secure plant or plant component against recommission-
ing.
9. Depressurize the plant or plant component.
10. Completely drain the plant (or plant component) and let it
cool down until the temperature is below the media vapor-
ization temperature and cannot cause scalding.
11. Correctly decontaminate, rinse and ventilate the plant or
plant component.
12. Lay piping so that the product is protected against trans-
verse and bending forces, and also from vibrations and
tension.
13. Only install the product between matching aligned pipes
(see chapters below).
14. Please note the flow direction (see chapter "Flow direc-
tion").
15. Please note the installation position (see chapter "Installa-
tion position").

12.2 Installation with butt weld spigots

Fig. 1: Butt weld spigots
1. Carry out preparations for installation (see chapter "Pre-
paring for installation").
2. Adhere to good welding practices!
3. Disassemble the actuator with the diaphragm before weld-
ing in the valve body (see "Removing the actuator"
chapter).
4. Weld the body of the product in the piping.
5. Allow butt weld spigots to cool down.
6. Reassemble the valve body and the actuator with dia-
phragm (see "Mounting the actuator" chapter).
7. Re-attach or reactivate all safety and protective devices.
8. Flush the system.
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12 Installation in piping
NOTICE
GEMÜ R677