we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
DIN30678 Standard Specification for Polypropylen coatings on steel pipes and fittings-Requirement and testing.
A polypropylene(PP) coating in compliance with this standard shall be designated
Coating DIN 30678-PP
Service life of coatings
|
Operating temperature, |
Minimum
expected |
|
23 |
50 |
|
60 |
50 |
|
80 |
30 |
|
90 |
15 |
|
100 |
8 |
Minimum coating thickness
|
Norminal size |
Minimum coating thickness |
|
DN |
in mm |
|
Up to 100 |
1.8 |
|
125-250 |
2.0 |
|
300-500 |
2.2 |
|
600 or more |
2.5 |
