Hebei, China
Business Type:
Manufacturer/Factory
Year of Establishment:
2007-03-21
Management System Certification:
ISO9001:2015, ISO14001:2015, OHSAS18001:2007, HSE Certification
Main Markets:
North America, East Asia(Japan/ South Korea)
Terms of Payment:
LC, T/T
OEM/ODM Service
Sample Available

Insulation Pipe, Petroleum Pipe, Polyethylene Pipe manufacturer / supplier in China, offering Three Layer PE Anti Corrosive Pipe Best Price, Insulation and Anti-Corrosive Pipe for Crude Oil, Heating Supply Insulation Pipe System for Hot Water and so on.

Gold Member Since 2019
Audited Supplier

Three Layer PE Anti Corrosive Pipe Best Price

Get Latest Price
Min. Order / Reference FOB Price
500 Meters US $20-100/ Meter
Port: Tianjin, China
Production Capacity: 1500km/Year
Payment Terms: L/C, T/T
Temperature Classification: Low and Media Temperature
MPa Classfication: Low and Media Pressure Piping
Material: PP PVC PPR Carton Steel , Pb,PE
Standard: ASTM, GB, API, DIN, JIS, En253
Diameter: Dn200
Medium: Cold Water,Hot Water,Oil and Gas,Chemical

You Might Also Like

Loading...

Basic Info

Model NO.
DN100-1200MM
Cross-Section Shape
Round
Connection Type
Seamless ,Welded ,Flange, Socket
Trademark
xingbang
Transport Package
Bare Package
Specification
11.8m 5.8m
Origin
China
HS Code
7304399000

Directly Buried Three Layer PE Anti-corrosive Steel Pipe

The current domestic anti-corrosive steel pipe adopt epoxy coal tar anti-corrosion, welding epoxy powder (FBE, glassfiber anti-corrosive) and three-layer PE anticorrosive, but from the anti-corrosion structure and various performance, it indicates that three layer PE anti-corrosion should be the first choice, our company has three layer PE anti-corrosive production lines, and we also can undertake 3 PE anticorrosion processing for the steel pipe.

Structure of three layer PE anti-corrosive pipe

Three layer PE anti-corrosive steel pipe carry out the national standard GB/T23257-2009.
Anti-corrosion steel pipe with inner layer of epoxy powder coating, middle layer of adhesive, outer layer of polyethylene

Technological process of three layer PE anti-corrosive pipe

1. Shot blasting degusting processing for the steel pipe:
Before shot blasting degusting,with medium frequency induction heater ,the steel pipe should be preheated to 40 to 60 degree, and then through the shot blasting machine, to remove the water, oil and dirt contamination , derusting grade is up to GB/T9823 - 1988 standard, Sa2.5 level (nearly white level) requirements, the depth on the surface of the steel anchor pattern from 40 to 100 microns.

2. Epoxy powder coating:

Before spraying, the steel pipe will be wrapped in kraft paper on both ends , then use medium frequency induction heater , heated the steel pipe to 190-230 degree, the electrostatic spraying method is adopted to epoxy powder as required amount of powder coating to the steel pipe surface, in the high temperature, combination with base material fastness, its anticorrosion performance is superior, the good resistance to chemical corrosion, coating surface density is smooth, wearable, and anti-High temperature.

3. Extruded adhesive:

According to the requirement of the thickness of adhesive layer and polyethylene, by adjusting the extrusion machine lord motor and screw revolution, to meet the requirements of extrusion amount. When the epoxy powder in a gel form, we adopt lateral winding technology, make the adhesive and PE coated on steel pipe, adhesive epoxy powder ,polyethylene polymerization to form a three layer structure, after molding, with three rows of roller, make three layer structure fusion compaction, make it a whole system with smooth surface, without bubble and defect.

Adhesive performance is stable, strong adhesive force, uniform film-forming.

Temperature of PE extrusion is 230-260 degree; PE aging corrosion resistance is strong, good environmental stress cracking resistance and elongation properties.

4. Cooling of coated pipe
According to the requirements of the three layer structure of the material properties, it requires
slow cooling, temperature of cooling pipe should not exceed 60 degree.

5.Jeeping:
in the production process, using online electric spark leak detector for coating 100% of leak detection and leak detection voltage is 25 KV .it requires no funneled under 25 Voltage leak detection.


6. Coating products processing:

Use groove grinding machine for pipe end for processing and tags

Main materials:

Epoxy powder adhesives and polyethylene epoxy powder material, for example, FBE from American 3M company, Dupont resin adhesive and domestic high quality polyethylene materials.


Specification of Thickness of Anti-corrosive Coating

DN(mm)Epoxy powder

(μm)
Adhesive layer(μm)Minimum thickness on the coating(mm)
Common level(G)Strengthen level(S)
DN≤100>=120>=1701.82.5
1002.02.7
2502.22.9
500≤DN<8002.53.2
DN≥8003.03.7

 Indexes of epoxy powder

 

NO.Item Indexes
1size distribution(%)150μm oversize powder <=3.0
250μm oversize powder <=0.2
2· volatiles(%)<=0.6
3Density(g/m3)1.3~1.5
4Gel time(200ºC)/(S)>=12confirm to the requirement±20%
5Fixed time(200ºC)/(min)<=3

 Indexes of fusion bonded epoxy coating

 

NO.ItemIndexes
1adhesion(grade)<=2
2cathodic disbonding(65ºC,48h)/(mm)<=8
3cathodic disbonding(65ºC,30h)/(mm)<=15
4counter bending(-20ºC,2.5°)no cracks

Indexes of adhesive
 

NO.ItemIndexes
1Density (g/m3)0.920~0.950
2MFR(190ºC,2.16kg)/(g/10min)>=0.7
3vicat softening point
(ºC)
>=90
4brittle temperature(ºC)<=-50
5· oxidation induction time(OIT)
(200ºC)/(min)
>=10
6· moisture content
(%)
<=0.1
7tensile strength(MPa)>=17
8elongation at break
(%)
>=600

Indexes of polyethylene
 

NO.ItemIndexes
1tensile strength· axial
(MPa)
>=20
axial(MPa)>=20
· deviation
(%)
<=15
2· elongation at break
(%)
>=600
3indentation hardness(mm)
(23ºC)
(50ºC or 70ºC)

<=0.2
<=0.3
4loop tensile stress cracking resistance
(F50)/(h)
>=1000

Indexes of anti-corrosive layer
 

NO.            Item Indexes
Two layer Three layer
1peel strength(N/cm)
(20ºC±10ºC)
(50ºC±5ºC)

>=70
>=35

>=100(cohesive failure)
>=70 (cohesive failure)
2· cathodic disbonding
(65ºC,48h)/(mm)
<=15<=6
3· cathodic disbonding
(the highest temperature,30d)/(mm)
<=25<=15
4impact strength(J/mm)>=8
5· counter bending
(-20ºC,2.5°)
No crack

Picture of hot water pipeThree Layer PE Anti Corrosive Pipe Best Price

 Xingbang plumbing is the participated unit of the New National Standard in China's insulation pipe industry.

We have participated in formulating three sets national standards:(GB/T28638-2012, GB/T29046-2012, GB/T29047-2012).We have gained ISO9001 International Quality Management System, ISO14001 Environment Management System, GB/T28001 Occupation Health Safety Management System.
Three Layer PE Anti Corrosive Pipe Best Price
 

Learn more about the production process>>>
Three Layer PE Anti Corrosive Pipe Best Price
Three Layer PE Anti Corrosive Pipe Best Price
Three Layer PE Anti Corrosive Pipe Best Price

 

Three Layer PE Anti Corrosive Pipe Best Price
FAQ:       

1: Are you a manufacturer or a trading company?

We are a manufacturer which has  more than   2 0 years' history.

2: Where is your manufacturer? How to visit it?

Our factory located in  Yutian Economic Development Zone ,TangShan , China. A bout 1.5 hours drive time to  Beijing and TianJin airport . Mainly producing pre-insulated pipes, HDPE outer protection pipe and 3PE anti-corrosive pipe.

You can take a plane to Beijing or Tianjin .then we could pick up you at the airport .

3: How do we control our products' quality?

We have professional quality control workers and quality inspection center(CNAS lab)  to control the entireproduction quality.     

4: How do you transport these products?

We use straps to hoist pre-insulated pipes, it can avoid no damage to our products, no hooks for lifting pipedirectly. During the handling process, collision, tossing and more ground drag scrolling are strictly forbidden.

In the process of long distance transport, the pipes should be fixed, and not damage outer protecting pipesand insulating layers.

5: Can I customize some other sizes of products?

Yes! We can according to the customer's request. 
If you have any other questions, please don't hesitate, contact us.

Send your message to this supplier

*From:
*To:
avatar Miss Bella
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now