DIN 30670 Yellow Jacket 3LPE Coated Line Pipe

DIN 30670 Yellow Jacket 3LPE Coated Line Pipe

DIN 30670 Yellow Jacket 3LPE Coated Line Pipe is a high-performance, corrosion-resistant pipeline solution for demanding oil and gas, chemical, and industrial applications. The product meets the German standard DIN 30670 for steel pipes with a three-layer polyethylene (3LPE) coating. The 3LPE coating provides a durable barrier against corrosion, abrasion, and wear, offering excellent resistance to cathodic disbondment, impact damage, and extreme environmental conditions. This product is suitable for pipelines operating in challenging environments, such as those exposed to seawater, high temperatures, or high-pressure conditions.

Specifications

Standard	DIN 30670 Yellow Jacket 3LPE Coated Line Pipe
Applied Steel Service Pipe	API 5L/ISO 3183 Gr.B-X100, ASTM A53/A106 Gr.B, ASTM A333 Gr.1/3/6, ASTM A671/A672/A691
Processing ability	OD:38mm-1620mm; WT:2mm-30mm
Length	6-18m
Packing	1. Both ends of the pipe are beveled to 30°+5°/-0° according to ASME B16.25. 2. For large-diameter pipes (OD≥NPS 8″), each pipe is equipped with 3 anti-collision ropes (3 locations) and 2 slings, with plastic covers at the ends of the pipes, or reusable metal bevel protectors (with sealing cloth), loosely packed. 3. For small-diameter pipes (OD≤NPS 6″), each pipe is equipped with 3 anti-collision ropes (3 locations), plastic covers at the ends of the pipes, and 2 slings per bundle (the whole bundle can be wrapped in a woven bag according to the coating type or customer requirements) and tied with plastic strips (woven bags are placed underneath to protect the coating from scratches)
Technique	Coated on Seamless/LSAW/SSAW/HFW/UOE/JCOE/RBE Line Pipes
Surface Preparation	ISO 8501-1/SIS 055900/DIN 55928 Sa 2.5/NACE No.2/SPCC SP10 (Near White Metal Finish)
Designed Working Pressure	-40℃ to +85℃
Place of Origin	Made in China
MOQ	3 Pieces
Transportation	Land, Sea and Rail

Type of DIN30670 3LPE/3PE coating
Type	N	S
Design temperatures for sintered polyethylene coatings	from −20 °C up to +50 °C	from −40 °C up to +70 °C
Design temperatures for extruded polyethylene coatings	from −20 °C up to +60 °C	from −40 °C up to +80 °C

Coating thickness of  yellow 3LPE
Nominal size DN	normal (n)	increased (v)
DN≤  100	1,8	2,5
100< DN≤  250	2,0	2,7
250 < DN< 500	2,2	2,9
500 ≤ DN <800	2,5	3,2
DN ≥800	3,0	3,7

DIN30670 yellow 3LPE/3PE Coating Performance
Property	Requirement	Testing as in	Notes
Degree of cure of epoxy resin	ΔTg according to the manufacturer’s specification	Annex B
Cathodic disbondment (CD test)	23 °C/28 d or 60 °C/2 d max. 7 mm	Annex C	Applies only to three  layer coatings
Peel strength	Type N: 100 N/cm (23 °C) 20 N/cm (50 °C) Type S: 150 N/cm (23 °C) 30 N/cm (70 °C)	Annex D	For system testing single values shall be no more than 25 % lower than the required average value.
Continuity (holiday detection)	No discharges	Annex E	25 kV test
Elongation at break (23 °C ± 2 °C)	min. 400 %	Annex F
Impact resistance (23 °C ± 2 °C)	Type N: ≥ 5 J/mm Type S: ≥ 7 J/mm	Annex H	25 kV test No discharges
Low-temperature impact resistance	Type N: ≥ 5 J/mm (−20 °C ± 2 °C) Type S: ≥ 7 J/mm (−40 °C ± 2 °C)	Annex H	25 kV test No discharges
Indentation resistance	Type N: max. 0,2 mm (23 °C) max. 0,3 mm (50 °C) Type S: max. 0,2 mm (23 °C) max. 0,4 mm (70 °C)	Annex I
Specific electrical coating resistance (23 °C ± 2 °C)	≥ 108Ωm²	Annex J
UV resistance	ΔMFR ± 35 %	Annex K
Thermal aging resistance	ΔMFR ± 35 %	Annex L

3LPE Coating Production Process

Applications of DIN 30670 Yellow Jacket 3LPE Coated Line Pipe

DIN 30670 specifies the requirements for polyethylene coatings on steel pipes and fittings. The Yellow Jacket 3LPE (Three-Layer Polyethylene) coating is widely used to protect steel pipes from corrosion and mechanical damage. Here are some common applications of DIN 30670 Yellow Jacket 3LPE coated line pipes:

Oil and Gas Industry:
Pipeline Transportation: Used extensively for transporting oil, gas, and other hydrocarbons over long distances, both onshore and offshore.
Subsea Pipelines: This provides excellent protection against seawater corrosion and mechanical impact, making it ideal for underwater pipelines.

Water Transmission Systems:
Potable Water Supply: Ensures safe transportation of drinking water with enhanced protection against corrosion and contamination.
Raw Water Pipelines: Used for transporting untreated water from natural sources to treatment facilities.

Industrial Piping Systems:
Chemical Plants: Suitable for pipelines carrying various chemicals due to their resistance to chemical corrosion.
Power Plants: Used for cooling water lines and other utility pipelines within power generation facilities.

District Heating Systems:
Hot Water Distribution: Provides reliable protection for pipelines carrying hot water in district heating networks.

Sewage and Wastewater Systems:
Effluent Pipelines: Used in wastewater treatment plants for the safe disposal of treated effluent.
Sewage Transportation: Suitable for transporting sewage due to its excellent resistance to corrosive substances found in wastewater.

Infrastructure Projects:
Road and Railway Construction: Used in infrastructure projects where pipelines are laid alongside or under roads and railways, offering protection against mechanical damage.
Bridges and Tunnels: Ideal for pipelines installed in bridges and tunnels due to its robust coating.

Mining Industry:
Slurry Pipelines: Used for transporting abrasive slurries in mining operations, offering excellent abrasion resistance.
Dewatering Pipelines: Suitable for dewatering operations in mines.

Geothermal Energy Systems:
Heat Carrier Pipes: Used in geothermal systems for transporting heat carriers, offering protection against thermal and mechanical stresses.