15 Removal from piping
15.1 Preparing for removal
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.
Danger from residual liquids leaking out!
Collect any residual liquids that leak
●
out.
Dispose of residual liquids.
●
Hot plant components!
▶ Burns
Only work on plant that has cooled
●
down.
Wear protective gear.
●
Sharp edges!
▶ Risk of cutting injuries!
Wear protective gloves.
●
Adequately secure the valve.
●
▶ If defective, the entire check valve must be replaced.
1. Wear appropriate protective gear in accordance with the
plant operator's guidelines.
2. Shut off plant or plant component.
3. Secure against recommissioning.
4. Depressurize the plant or plant component.
5. Drain piping and clean it if necessary.
6. Provide a collecting tank in case there are any residues of
the medium left in the piping.
7. Take into account warning notes.
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WARNING
WARNING
CAUTION
CAUTION
NOTICE
15.2 Removal
1. Undo the nuts on all flange bolts.
2. Remove all nuts and washers completely from the flange
bolts.
3. Pull the flange bolts out of the flange holes. For a hori-
zontal flow, the bottom flange bolts can remain inserted in
order to facilitate disassembly.
4. Secure the check valve against falling down.
5. Remove the check valve from the flange using the eye
bolt 6.
6. Unhook the spring (optional) 4 and unscrew the two
bolts 5.
7. Remove the disc 2.
8. Place the check valve down on a suitable underlay.
15.3 Prerequisites for storage and reuse
After disassembly, the valve can be stored or used in a differ-
ent plant. Observe the following guidelines:
- There must be no residues of the medium present in the
valve.
- The valve must be in a faultless condition before reuse.
- In order to be reused, the valve must be designed for the
specified conditions of use.
- When storing, observe the specifications on storage and
transport.
16 Disposal
1. Pay attention to adhered residual material and gas diffu-
sion from penetrated media.
2. Dispose of all parts in accordance with the disposal regu-
lations/environmental protection laws.
17 Returns
Legal regulations for the protection of the environment and
personnel require that the completed and signed return deliv-
ery note is included with the dispatch documents. Returned
goods can be processed only when this note is completed. If
no return delivery note is included with the product, GEMÜ
cannot process credits or repair work but will dispose of the
goods at the operator's expense.
1. Clean the product.
2. Request a return delivery note from GEMÜ.
3. Complete the return delivery note.
4. Send the product with a completed return delivery note to
GEMÜ.
55 / 60
17 Returns
GEMÜ RSK