Baotong BWFRP pipes material

Introduction to BWFRP electric pipes

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Power tube introduction.

Baotong BWFRP power and communication pipelines are made of high performance fiber composites and epoxy resin. They are composed of braided layer, middle layer and outer layer. They are interlaced by high performance fiber longitudinal and transverse braiding and extrusion. It has ten characteristics: high ring stiffness, strong tensile strength, smooth inner wall, excellent thermal conductivity, high and low temperature resistance, high electrical insulation, strong flame retardancy, corrosion resistance and waterproof, easy to transport and install, safety and environmental protection.

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Theschematicdiagramfortechnological structure

BWFRP Power Pipe Technology

BWFRP pipes 

Materil High performance composite material and epoxy resin 

Technology   Fiber weaving pultrusion

Performance

  • High ring-stiffness

  • Strong tensile resistance

  • Smooth inner walls

  • Excellent thermal conductivity property

  • Corrosion and water resistance

  • High-low temperature resistance

  • High electric insulating property

  • Strong flame resistance

  • Easy transportation and installation

  • Safe and Environmental-friendly

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Woven layer

Circular composite layer

Woven layer

Product type

BWFRP pipes type

BWFRP electric pipes Executive standard:DL/T802.2--2017

Specifications

(mm)
Size
(mm)/d

Size

(mm)/t
Weight
(kg/m)
Ring-stiffness grade
(kpa)
Measured results(kpa)
BWFRP100x3.0x60001003.02.42544
BWFRP150x4.0x60001504.03.52537
BWFRP150x5.5x60001505.55.45079
BWFRP175x4.5x60001754.55.42534
BWFRP200x5.0x60002005.06.62538
BWFRP200x6.5x60002006.58.85062
BWFRP250x7.0x60002507.0112545
BWFRP250x8.5x60002508.513.55065

Executive standard and relevant parameters of BWFRP pipes

  • BWFRP100x3.0x6000

  • BWFRP150x4.0x6000

  • BWFRP200x5.0x6000

  • BWFRP250x7.0x6000

Tested itemsStandard valueTest method
AppearanceThe conduit has even color; there is no crack on inner and outer surface, separated layers, pin holes, impurities, glue shortage area, bubbles and other defects; the inner and outer surfaces should be smooth and flat and should not have sags and crests. Two end surfaces of the conduits should flat without sharp edge and burrs.Eyeballing
  • Size

  • Inner diameterunitmm)

    Thicknessunitmm)

  • 100±0.3

  • 150±0.3

  • 200±0.5

  • 250±0.5


  • 3.0±0.2

  • 4.0±0.2

  • 5.0±0.2

  • 7.0±0.3

Inspected with calipers
Tensile strength(unitMpa)≥200DL/T802.2--2017

Tensile strength after immersed in water

unitMpa)
≥170DL/T802.2--2017

Barcol hardness

≥38GB/T3854-2005
Ring-stiffness(5%)(unitMpa)≥25GB/T3854-2005
Load distortion temperature(Tfel.8)℃≥160GB/T1634.2-2004

Drop-hammer impact

The pipe wall structure should have no obvious separated layer, fissure or cracking.DL/T802.2--2017

Joint sealing performance

Maintain 15 minutes under 0.1Mpa water pressure. The joint should not seep and leak water.

DL/T802.2--2017
The flattening load retention rate after immersed in water%≥85GB/T5352-2005
The content of alkali metal oxide%≤0.8GB/T1549-2008
Oxygen index%≥26GB/T8924-2005

Executive standard and relevant parameters of BWFRP pipes

  • BWFRP150x5.5x6000

  • BWFRP175x4.5x6000

  • BWFRP200x6.5x6000

  • BWFRP250x8.5x6000

Tested itemsStandard valueTest method
AppearanceThe conduit has even color; there is no crack on inner and outer surface, separated layers, pin holes, impurities, glue shortage area, bubbles and other defects; the inner and outer surfaces should be smooth and flat and should not have sags and crests. Two end surfaces of the conduits should flat without sharp edge and burrs.Eyeballing
  • Size

  • Inner diameter(unitmm)

    Thickness(unitmm)

  • 150±0.4

  • 175±0.4

  • 200±0.5

  • 250±0.5


  • 5.5±0.3

  • 4.5±0.2

  • 6.5±0.3

  • 8.5±0.4

游标卡尺
Tensile strength(unitMpa)≥200DL/T802.2--2017

Tensile strength after immersed in water

(unitMpa)
≥170DL/T802.2--2017
Barcol hardness≥38GB/T3854-2005
Ring-stiffness(5%)(unitMpa)≥50GB/T5352-2005
Load distortion temperature(Tfel.8)℃≥160GB/T1634.2-2004
Drop-hammer impactThe pipe wall structure should have no obvious separated layer, fissure or cracking.DL/T802.2--2017
Joint sealing performanceMaintain 15 minutes under 0.1Mpa water pressure. The joint should not seep and leak water.DL/T802.2--2017
The flattening load retention rate after immersed in water%≥85GB/T5352-2005
The content of alkali metal oxide%≥85GB/T5352-2005
The content of alkali metal oxide%≤0.8GB/T1549-2008
Oxygen index%≥26GB/T8924-2005