Preinsulated Seamless Steel Pipe Polyurethane PU Foam Thermal Insulation Coating Seamless Steel Pipe

Product Description

Product Description

Thermal - insulated pipe

PE insulation pipes are also known as PE outer protection pipes, outer casings, or sleeves. The direct-buried polyurethane thermal insulation pipe features a high-density polyethylene (HDPE) protective layer on the outside, a polyurethane rigid foam filling as the thermal insulation layer in the middle, and a steel pipe as the inner layer.Polyurethane direct-buried thermal insulation pipes exhibit excellent mechanical properties and thermal insulation performance, along with strong impact resistance. Under normal conditions, they can withstand high temperatures ranging from 120°C to 180°C, making them suitable for thermal insulation projects of various cold and hot water pipelines and high-low temperature pipelines.

Specification

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  (Equivalent to PN 25? 25bar to be confirmed)
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

1. 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.

Product Detail

A pre-insulated pipe normally consists of three parts

Applications-Pre-insulated pipe system are used by the chemical, pharmaceutical of:

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)

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

Company Profile

Hebei Pipeline Equipment HN Co., Ltd.  was established in January 1996, covering an area of 22000 square meters, with a building area of 150000 square meters, a registered capital of 127.1 million yuan, and total assets of 1.26 billion yuan. It currently has 468 employees and an annual production capacity of 300000 tons of steel pipes and 60000 tons of pipe fittings.

 

1.First class production and testing equipment

2.The marketing field covers both domestic and international markets

3.Complete qualification certification

customer visit

Over the years, the company has supplied a large number of products to many national key projects such as the West East Gas Pipeline, Sichuan East Gas Transmission, China Russia Line, and China Myanmar Line, and established long-term friendly cooperative partnerships; It has provided high-quality services for foreign key projects such as Russian natural gas, Lukoil, Hengyi Brunei, and Iranian national oil fields, and its products have been exported to more than 30 countries and regions such as Brazil, Iraq, the United Arab Emirates, Bangladesh, South Africa, Türkiye, Uzbekistan, Azerbaijan, Madagascar, Algeria, and West Africa, Central Asia, and Southeast Asia .etc

Application And Usage

Polyurethane ensures high resistance to chemicals, condensation, and corrosion, thus guaranteeing the long-term service life of pipelines. It demonstrates high resistance to extreme high and low temperatures (from -50°C to 135°C) and exhibits excellent insulation performance due to its low thermal conductivity coefficient (λ). For these reasons, it is often selected as a pipeline thermal insulation material. Polyurethane helps maintain the temperature of pipelines, avoid heat loss from pipelines, and prevent pipelines from freezing or bursting in cold climates.
 
The thermal conductivity coefficient (λ) value of polyurethane is lower than that of other insulation materials such as wood, rock wool, and polystyrene, which is attributed to the high number of closed cells in rigid polyurethane foam. Therefore, the thermal insulation performance of rigid polyurethane foam is far superior to that of other insulation materials.
Standard and special fittings
Small and large pipes
Wide radius bends
Flanges
Valves
Support customized

Packing & Delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

FAQ

1. Are you a factory or trading company?
A: We are a factory.

2. How can I get a quotation from you ?
A: You can leave us message, and we will reply every message in time. Or we may talk on line by Trademanager.
And you can also find our contact information on contact page.

3.Can I get samples before order ?
A: Yes, of course. we can produce by your samples or technical drawings. 

4. what is your delivery time ?
A: The time of delivery is usually around 20 days(1*20FT as usual).
We can send out in 2 days, if it has stock.

5.What is your payment terms?
A: Our usual payment term is 30% deposite before production, 70% balance before shipment. L/C is also acceptatble.EXW,FOB,CFR,CIF.

6.How does your factory do regarding quality control?
A: Quality is priority. Our factory has gained ISO9001 authentication. We guarantee the goods out from our factory 100% qualified.
And Each Process, we have very strict operation and arrange 2 techinians to inspect. After the products are finished,
we will make the last test to pick up the unqualified products

7.What is your MOQ?
A: As long as hold one container ,we can accpet the order.