Large diameter chilled cooling hot water direct burial pre-insulated steel pipe EN253

• Customization: Available
• After-sales Service: Guarantee
• Type: Welded
• Model NO.: HP08
• Technique: SAW
• Material: Carbon Steel
• Surface Treatment: PUR Foam
• Usage: Pipeline Transport, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, water transmission
• Section Shape: Round
• Insulation: PUR Foam
• Operating temperature: up to 140ºC
• Laid way: Buried, overhead, trench
• Standard: EN253, GB/T29047-2012
• Transport Package: Bared Pipe
• Specification: DN20 - DN1400
• Trademark: Hebei Pipeline
• Origin: China
• HS Code: 7306309000
• Production Capacity: 1000, 000 Tons Per Year

Product Description

Short description

Production name:  Prefabricated buried insulation steel pipe

Insulation steel pipes are widely used in liquid and gas transmission pipe networks, chemical pipe insulation projects in petroleum, chemical, central heating and heating network, central air-conditioning ventilation pipes, and municipal engineering.

High-temperature prefabricated direct-buried thermal insulation steel pipe is a direct-buried prefabricated thermal insulation steel pipe with good thermal insulation performance, safety and reliability and low construction cost.

A pre-insulated pipe normally consists of three parts;
Part 1: Core pipe/Carrier pipe(Inside):Stainless steel or Carbon steel pipe
Part 2: Insulating layer (Medium): Polyurethane foam (PUP Form) (High insulation qualities compared to mass and volume)
Part 3: Protective jacket (Outside casing): Plastic or steel (Polyethylene (PEH), High Density Polyethylene (HDPE), Galvanized, Aluminum etc)

Materials

Item	Material	Notes
Service pipe/Carrier pipe	Steel pipe	API 5L PSL-1: GR.B X42, X46, X52, X60, X70 API 5L PLS-2: ISO3183-L245, L290, L320, L360, L415, L485
Insulation	Polyurethane foam (PUR) Nominal Density of 60(+15/-5) kg/m³	Compressive Strength: ≥ 0.300 Mpa
		Thermal Conductivity: ≤ 0.029 W/m·K@50ºC
		Closed Cell Content: ≥90%
		Water Absorption: <5%
Insulation Jacket	High-density polyethylene (HDPE)	As technical parameter

Other details

Description	polyurethane thermal insulation steel pipe
Wall thickness	0.5mm-16mm
Length	1m-12m or customized
Outer Diameter	0.405-80 inch or 10.3mm - 2032mm
Insulation	PUR Foam
Operating temperature	Up to 140ºC
Standard & Grades	API 5L PSL1/ PSL2, ASTM A53,ASTM A252,GB/T9711.1,GB/T3091,SY/T 5037-2012,DIN1626,EN10219,EN10217
Ends	30~35°
Quality control	100% X-Ray inspection/ 100%X 100% Hydraulic Pressure test/ 100% 100% Ultrasonic inspection / 100%
Lining	Epoxy , cement motar,  and according to customers requirement
Operating pressure	<1.6Mpa
Laid way	Buried, overhead, trench
Insulation material	Fluoride-Free water foamed rigid polyurethane foam material  (foam density: 60kg/m3-80kg/m³)
Inner surface tension of the  high density polyethylene pipe	≥50dy/cm
Applications	Chemical, Pharmaceutical, Petrochemical and food industries for the transport. District heating networks District cooling networks Chilled water, Drinking water, Waster water, Cooling water, Hot water Steam & condensate lines Process fluids Refrigerants Chemicals  Oil

Advanced technotology, first-class production equipment, and excellent production lines, showing superior quality, ensuring product stability and reliability, creating brand-name products by relying on core technology. 
For more details, please contact us, our sales team & tech.team are ready for service you all the time.