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Insulation steel pipes are widely used in liquid and gas transmission pipe networks, chemical pipe insulation projects i;
Basic Info.
Model NO. I-33
Usage Asphalt, Lubricants, Solvent, Fuel, Petroleum Coke
Medium Liquid, Fluids with Solid Particle, Gas
Shape Round
Color Black
Transport Package Standard Package
Specification DN20-DN1400
Trademark OEM
Origin Hebei China
HS Code 7307930000
Production Capacity 50000ton/Year
Product Description

Insulation steel pipes are widely used in liquid and gas transmission pipe networks, chemical pipe insulation projects in petroleum, chemical, central heating and heating networks, 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.Specification1. The pre-insulated steel pipe coated with high density polyurethane foam can resistant the temperature up to 140°c 2. With the corrosion resistant HDPE jacket pipe can make the pipe directly buried underground without trench.3. Different size pipe and pipe fittings can service for different heating and cooling project.4. The polyurethane foam thickness can be designed from 26.5-83mm or more.Applications-Pre-insulated pipe system are used by the chemical, pharmaceutical, petro-chemical and food industries for the transport of:
  1. District heating networks
  2. District cooling networks
  3. Chilled water, Drinking water, Waste water, Cooling water, Hot water
  4. Steam & condensate lines
  5. Process fluids
  6. Refrigerants
  7. Chemicals
  8. Oil
A pre-insulated pipe normally consists of three parts
Part 1: Carrier pipe (Inside): Stainless steel or Carbon steel
Part 2: Insulating layer (Medium): Polyurethane foam (PUR 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)
Pos: The choice of carrier pipe, foam type and foam thickness, as well as the material for the jacket, is made by the customer, who can also choose to supply carrier pipes for the project.
Advantages: impact-proof, watertight, resistant to salt and chemicals, hygienic and non-corrosive
Materials
ItemMaterialNotes
Service pipe/Carrier pipeSteel PipeAPI 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 60¹+15-15 kg/m³Compressive Strength: ≥ 0.300 Mpa
Thermal Conductivity: ≤ 0.029 W/m·[email protected]ºC
Closed Cell Content: ≥90%
Water Absorption: <5%
Insulation JacketHigh-density polyethylene (HDPE)As technical parameter
Descriptionpolyurethane thermal insulation steel pipe
Wall thickness0.5mm-16mm
Length1m-12m or customized
Outer Diameter0.405-80 inch or 10.3mm - 2032mm
InsulationPUR Foam
Operating temperatureUp to 140ºC
Standard & GradesAPI 5L PSL1/ PSL2, ASTM A53,ASTM A252,GB/T9711.1,GB/T3091,SY/T 5037-2012,DIN1626,EN10219,EN10217
Ends30~35°
Quality control100% X-Ray inspection/ 100%X100% Hydraulic Pressure test/ 100%100% Ultrasonic inspection / 100%
LiningEpoxy , cement motar, and according to customers requirement
Operating pressure<1.6Mpa (Equivalent to PN 25? 25bar to be confirmed)
Laid wayBuried, overhead, trench
Insulation materialFluoride-Free water foamed rigid polyurethane foam material
(foam density: 60kg/m3-80kg/m³)
Inner surface tension of the
high density polyethylene pipe
≥50dy/cm

Pre-Insulated Steel Pipe Polyurethane Foam Insulation and HDPE Casing


CONSTRUCTION SITE

Pre-Insulated Steel Pipe Polyurethane Foam Insulation and HDPE Casing


PIPELINE AND PICTURES OF PRODUCTS

Pre-Insulated Steel Pipe Polyurethane Foam Insulation and HDPE Casing


Pre-Insulated Steel Pipe Polyurethane Foam Insulation and HDPE Casing


Pre-Insulated Steel Pipe Polyurethane Foam Insulation and HDPE Casing

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