Instructions for storing polyethylene pipe against UV
Storage and maintenance of polyethylene pipes:
Pipe storage location
• The best place to store polyethylene pipes is indoor spaces that reduce harmful effects of sunlight UV on polyethylene pipes.
• If pipes are to be stored up to one month or less in the open space, it is necessary to put a suitable cover (such as tarpaulin) on the pipes. Otherwise, pipes must be stored under a roofed space.
• The location of the warehouse should be flat, sufficiently large to accommodate cargo trucks, handling equipment and load handling, as well as a suitable place for temporary storage.
• The location of the warehouse should be such as to protect pipes against physical breakdowns.
• General requirements include items such as having enough space, having a level and relatively smooth surface, free of rubble, garbage or other materials that may damage pipes and parts or interfere with the displacement process.
Height of polyethylene pipes in the warehouse
If the storage location is flat and level, the coils of polyethylene pipes can be placed to a total height of about 1.5 meters on each other. Limit the height to about one meter for surfaces that are not perfectly leveled.
Depending on the environmental conditions and the storage time of the pipes, the arrangement will vary:
Regular Conditions
(Storage for less than a month or in temperature below 35 °C) |
Particular Conditions
(Storage for more than a month or in temperature above 35 °C) |
Nominal Diameter |
|
No. of Rows |
|
SDR 17 and lower |
Higher than SDR 17 |
SDR 17 and lower |
Higher than SDR 17 |
|
12 |
15 |
10 |
5 |
110 mm |
|
10 |
12 |
9 |
5 |
125 mm |
|
8 |
10 |
7 |
4 |
160 mm |
|
6 |
8 |
6 |
3 |
200 mm |
|
5 |
6 |
5 |
3 |
225 mm |
|
5 |
6 |
5 |
2 |
250 mm |
|
4 |
5 |
4 |
2 |
280 mm |
|
4 |
5 |
4 |
2 |
315 mm |
|
4 |
5 |
3 |
2 |
355 mm |
|
3 |
4 |
3 |
1 |
400 mm |
|
3 |
4 |
3 |
1 |
450 mm |
|
3 |
3 |
2 |
1 |
500 mm |
|
2 |
2 |
1 |
1 |
500-800 |
General items and safety tips for storing polyethylene pipes
-
Black polyethylene pipes have carbon black so that they absorb light and keep heat. This causes the pipe to become hot and expand. Therefore, care must be taken when moving to prevent fracture, curvature or permanent deformation. If possible, hot pipes that have been exposed to sunlight for a long time should not be handled.
-
In cold temperatures (below 0 ° C), care should be taken no impact is exerted to pipes. In these conditions, there is a potential fracture for polyethylene pipes. At very cold temperatures (less than -20 ° C), the displacement of pipes should be avoided.
-
When unloading from the truck, prevent dropping the pipes to the ground.
-
When lifting with a liftruck, the liftruck forks should be as smooth as possible to prevent damage to the inner wall of the pipe.
-
Avoid excessive pressure on the liftruck forks at the end of the pipe during transportation, and only use a liftruck for lifting pipes.
-
The storage location of the pipes should be flat, smooth, free from stones and free of any harmful chemical substances.
-
Avoid pulling pipes on the ground.
-
When carrying heavy objects, be sure to wear work shoes.
-
Do not stand by the liftruck while moving the load.
-
Polyethylene is flammable, so prevent firing by it.
HDPE Pipe Handeling Transportation
