2pe anticorrosion steel pipe from the inside and outside each for seamless steel pipe (seamless pipe or welded pipe), in the middle of the adhesive layer, with adhesive and seamless steel pipe and outside the high-pressure polyethylene layer of the actual effect, the surface layer of high-pressure polyethylene corrosion layer. General working pressure is very large pipeline application of seamless pipe and working pressure is relatively small application of welded pipe.
GNEE Supply 2PE Anti-corrosive Steel Pipe Specification
PE Coated Pipe, 2PE Coated Pipe, 3PE Coated Pipe
Application:Used for for natural gas, petroleum, water & sewage, and pipe systems
Specification:OD: 219mm~2020mm
WT: 5mm~25mm
LENGTH: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr
Coating Standard:DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.
Pipe Type: Submerged Arc Welded (LSAW/SSAW), Electrci Resistance Welded
Ends:Plain,Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided if possible
Surface:Two Layer Polyethylene Coating (2mm~4.5mm)
Packing:Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle
Minimum total layer thickness range
|
M kg/m |
Layer thickness in mm |
||||||||
|
Class A1 |
Class A2 |
Class A3 |
Class B1 |
Class B2 |
Class B3 |
Class C1 |
Class C2 |
Class C3 |
|
|
M ≤ 15 |
1,8 |
2,1 |
2,6 |
1,3 |
1,8 |
2,3 |
1,3 |
1,7 |
2,1 |
|
15 < M ≤ 50 |
2,0 |
2,4 |
3,0 |
1,5 |
2,1 |
2,7 |
1,5 |
1,9 |
2,4 |
|
50 < M ≤ 130 |
2,4 |
2,8 |
3,5 |
1,8 |
2,5 |
3,1 |
1,8 |
2,3 |
2,8 |
|
130 < M ≤ 300 |
2,6 |
3,2 |
3,9 |
2,2 |
2,8 |
3,5 |
2,2 |
2,5 |
3,2 |
|
300 < M |
3,2 |
3,8 |
4,7 |
2,5 |
3,3 |
4,2 |
2,5 |
3,0 |
3,8 |
|
Please note: The total required thickness may be reduced for SAW pipes by a maximum of 10% on joint seam. |
|||||||||
Minimum thickness of finished coating
|
Pipe Sizes (Specified OD) |
Minimum Coating Thickness Chart (mm) |
|
≤ 10 3 /4” (273.1 mm) |
2.5 |
|
> 12 3 /4” ( 323.9 mm) to ≤ 18” (457 mm) |
2.8 |
|
> 20" (508.0 mm) to ≤ 30" (762 mm) |
3.0 |
|
> 32" (813.0 mm) |
3.3 |
External Coating
|
Coating Type |
Coating Standard |
|
Single Layer FBE |
SY/T 0315-2005, CAN/CSA Z245.20-2010, |
|
DEP 31.40.30.32-Gen-2011, ISO 21809-2-2007, API RP 5L9-2001 |
|
|
Double Layer FBE |
Q/enPC 38-2002, CAN/CSA Z245.20-2010 |
|
2LPE/2LPP Coating |
SY/T 0413-2002, GB/T 23257-2009, ISO 21809-1-2009 |
|
3LPE/3LPP Coating |
SY/T 0413-2002, GB/T 23257-2009, DIN 30670-1991, CAN/CSA Z245.21-2010， |
|
ISO 21809-1-2009, NF A49-711-1992, NF A49-710-1988 |
|
|
Concrete Weight Coating |
Q／HS 3017—2008 |
|
Insulation Coating |
SY/T 0415-1996, CJ/T 114-2000, EN 253-1994 |
|
Bitumen Coating |
BS 534-1990 |
Internal Coating
|
Coating Type |
Coating Standard |
|
Internal Liquid Epoxy Coating |
API RP 5L2-2002, DEP 31.40.30.35-Gen-2005 |
|
Single Layer FBE |
API RP 5L7-1988 |
|
Internal Cement Lining |
BS 534-1990, AWWA C205-2000 |
|
Bitumen Coating |
BS 534-1990 |
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