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Bonded Flexible pipe


  Bonded Flexible pipe is a special and continuous flexible composite pipe with multi-layers. Its inner layer is made by one or many high polymer materials, which has smooth inner surface and good hydrophilic property. Its middle layer is made of multi-cross-weave wire outside the inner tube, which provides radial and axial stress tolerance to the whole pipe. Its high polymer outer layer protects the whole pipe from the damage of external environment. Insulation layer can be added on the outside the whole pipe, which has insulation function. High stiffness hot-melt adhesive is adopted between different layers to prevent their structural change.
    The technical parameters of product can be designed, and section drawing analysis model is adopted to calculate pipe damage pressure, damage tension, damage torque, tensile strength, minimum bending radius, etc. Advanced finite element design method is adopted to optimize pipe structure design and provide a series of necessary products. The maximum working pressure of pipe can be designed to be 7MPa.




Corrosion resistance and long service life
Apply to convey corrosive medium of acid, alkali, salt, etc. Service life is 30 years.
No fouling and no paraffin
Smooth hydrophilic pipe wall ensures no fouling and no paraffin
Continuous pipe, easy installation and convenient construction
Pipe with flexible and continuous features saves large amount of welding operations, ensures easy installation and construction, is not affected by foundation settlement and applies to the areas of low-lying, swamp, shallow sea, mountains, etc.
Electrical heating for block
When solidification pipe and frozen pipe occur, they can be solved through electrical heating by using special equipments, but the service life of pipe is not affected.
Easy detection and pipeline search
As steel pipe, the pipe is also detectable, which solves the pipeline search problem after burying the non-metal pipe.



No.

Item

Unit

Index

1

Working Pressure

MPa

≤7

2

Service Temperature

-40~90

3

Relative Roughness of Pipe Internal Wall

Δ/mm

0.0015~0.015

4

Service Life

Year

≥30

5

Electrical Heating Temperature

≤65

6

Thermal Conductivity Coefficient of Thermal Insulation Material

w/m•k

0.03~0.04

7

Water Contact Angle

Degree

35~45

8

Continuous Length

m/reel

300~1000

 

Type

Nominal I.D. (mm)

Fitting Specification

W-58×8.0/PN5.5

42

E-58/59

W-59×8.5/PN7

W-68×8.0/PN5.5

52

E-68/69

W-69×8.5/PN7

W-83×9.0/PN5.5

65

E-83/84

W-84×9.5/PN7






    Steel end fittings are installed on the ends of pipe on each reel. According to the difference of medium, the material of end fitting can be stainless steel or carbon steel. Special equipment is adopted for inside and outside swaging, which achives 360° seal of end fitting and pipe. During installation, welding connection or flange connection is adopted for the end fitting connection.



    According to requirements of customers, continuous thermal insulation can be achieved before the product leave factory. XLPE foam thermal insulation material and outer PE pressure resistance layer guarantee no water absorption and no permanent deformation for pipe burying



    Apply to oil, gas or water gathering and convey pipeline for land oilfield, heat washing pipeline, etc. Especially apply to convey medium with high sulfur, such as oil, gas, water, etc.


       Adopt special reel for storage and outer packaging film, which is easy for transportation and installation.

Electrical Heating Controller for Plastic Composite Pipe

     During the crude oil convey process, solidification pipe and frozen pipe will occur for environment change or informal operation. Continuous reinforced plastic composite pipe has electrical heating function and electrical heating controller for plastic composite pipe is special equipment for achieving this function, which changes heating power and controls heating temperature and time though current and voltage adjustment. This solves the problem of solidification pipe and frozen pipe.

 



Power Supply: Three Phase AC 380V;          
Output Power Supply: DC 0—500V;                        
Output Current Control: DC ≤70A                     
Heating Temperature Control≤65℃



Parameters are shown on digital display, including temperature, output voltage and current control.
Easy operation: Automatic operation and manual operation are available. 
Reliable function: The pipe has limit current circuit and short circuit and overload protection function.
  

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