 |
| |
G.R.P PIPE CHARACTERISTICS
The GRP structure consists of three layers perfectly adherent with one another, each having different characteristics and properties in relation to their function. The properties of chemical resistance and impermeability are, anyway, equivalent for the three layers which are namely. |
 |
- Liner : It's in direct contact with the conveyed fluid and guarantees the maximum resistance to the chemical attack from the fluid itself. moreover, the liner presents an internal surface particularly smooth, without defects, cracks or delamination. The liner is composed of one glass veil and one glass mat tape resin impregnated and is produced in two steps ( inner liner and outer one)
- Structure : It's function is to render the pipe shell resistant to the stresses due the design conditions (stresses due to the internal and/or external pressure, flexural strength due to the external loads etc.) and generated by transport and laying operations. The thickness of the filament depend, then, upon the design conditions. The mechanical layer is composed of winded glass filament roving chopped glass, sand aggregate, glass mat reinforcement, polyester resin impregnated.
- Resin : It has a thickness of about 0.1 ~ 0.3 mm and consist of pure resin without glass reinforcement. It guarantees the complete impregnation of the peripheral fibers, thus yielding the external pipe surface completely free of protruding fibers and well finished. The external coating is always added with ultraviolet rays inhibitor in order to prevent the nearly negligible weathering effects.
|
| Summary of plant flow chart |
 |
The Dasan Engineering GRP Pipe Line advantage
- Long operation period
- Leak tightness
- Corrosion resistant
- Wide range of application
- Easy operation
- Low operation costs
- Smoothness of the surface
Application
- Potable water pipelines
- Sewage systems
- Irrigation systems
- Industry
- Water power plants
- Oil and gas pipelines |
|
|
Standards
|
Remarks
|
|
Diameter capacity
|
ND300 ~ ND1200
ND300 ~ ND1800
ND300 ~ ND2600
ND300 ~ ND4000
|
|
|
Mandrel Speed M/h
|
|
Pressure (bar)
|
2.5 gravity pipes
|
6
|
10
|
16
|
20
|
25
|
|
ND 300
|
28
|
28
|
28
|
28
|
28
|
28
|
|
ND 400
|
28
|
28
|
28
|
28
|
28
|
28
|
|
ND 500
|
28
|
28
|
28
|
28
|
28
|
28
|
|
ND 600
|
28
|
28
|
28
|
28
|
28
|
28
|
|
ND 800
|
28
|
28
|
27
|
26
|
26
|
24
|
|
ND 1000
|
26
|
26
|
25
|
22
|
22
|
23
|
|
ND 1200
|
20
|
20
|
20
|
18
|
18
|
17
|
|
ND 1600
|
12
|
12
|
12
|
14
|
14
|
|
|
ND 1800
|
10
|
10
|
12
|
8
|
8
|
|
|
ND 2000
|
8
|
7
|
6
|
9
|
7
|
|
|
ND 2400
|
6
|
6
|
5
|
|
|
|
|
ND 2600
|
5
|
5
|
5
|
|
|
|
|
|
