Steel Wire Mesh Reinforced

HDPE Pipe

Steel Wire Mesh Reinforced

HDPE Pipe

Roobuck Pty Ltd

Pipe Structure

Every cross of steel

wires is welded

HDPE Steel wire mesh

Fitting Structure

HDPE

Steel Skeleton

Connection Structure

Coupler inside diameter = Pipe outside diameter

Pipe 1 Electrofusion Coupler Pipe 2

Jointing surfaces are melted using Electrofusion Machine

Performance Comparisonto Normal PE Pipes

NOTE:

Normal PE pipes use DN, which is outside diameter.

Roobuck PE pipes use Inside diameter.

For comparison, the diameter of one pipe must be

converted so both pipes are compared in either OD or ID.

Example:

Normal PE Pipe Roobuck Pipe

(outside D: 280) (Outside D: 275)

1) Large inside section area

2) Less weight for pipes >DN200

So:

-- Easy installation

-- Less support for raised pipeline

3) High pressure

Up to PN40 (4MPa)

IN50 ID65 ID80 ID100 ID125 ID150 ID200 ID250 ID300 ID350 ID400 ID450 ID500 ID600

PN15 X X X X X X X X X X X X X X

PN12.5 X X X X X X X X X X X X X X

PN16 X X X X X X X X X X X X X X

PN20 X X X X X X X X X X X X X

PN25 X X X X X X X

PN30 X X X X X

PN35 X X X

PN40 X X X

4) Better long-term hydrostatic strength

Most internal stress is born by steel mesh so HDPE is released

Steel wire mesh hold HDPE together

(Every cross over of the wire is welded)

5) High Rapid Crack Propagation Resistant and

Environment Stress Crack Resistant

6) Higher environment temperature

When temperature rises, PE strength is reduced quickly, but steel only changes very slightly in the range of 0-100oC.

7) Flexible along pipeline

-- Steel has much higher elasticity modulus

-- Steel mesh configuration makes it flexible in the axis direction

Suitable for curved pipeline

8) Smooth inner wall in low resistance

Bead No bead

Hot Plate Electrofusion

for normal PE pipe For Roobuck pipe

9) Very strong connection

9.1) Much larger welding area

Normal PE pipe: welding pipe wall section

Roobuck Pipe: Welding pipe surface

9) Very strong connection

9.3) Steel skeleton reinforce for fitting

Steel skeleton is stronger than steel mesh

Connection is stronger than pipe itself !

9.2) Double wall thickness at welding area

Electrodes to Steel skeleton

generate heat

Installation Comparisonto Normal PE Pipes

1) Less weight of pipes

-- Most pipes can be moved in hand

-- Easy transportation

2) Less weight of welding machine

Can be carried in hand – about 20kg

3) Less welding time

Total welding time about 30 min

4) Easy for high rising installation

Welding machine is on the ground and only wires connect to coupler

5) Multi-point installation

No need to wait for cooling to go to next point

6) Easy operation of welding machine

Automatic setup and simple menu

7) Reliable

Less effect from dust, raining or wind

All installation data are saved in USB

8) Less man power

Significantly less labour cost

9) Less fuel consumption

Small generator and crane

Cost ComparisonTo Normal PE Pipes

1) Lower pipe cost

-- Use smaller pipes owing to large inside section area

-- Use smaller pipes in high pressure

2) Lower installation cost

Easy and quick

3) Lower maintenance cost

-- Pipe reliable, robust and long lifetime

-- Traceability: steel is easy to detect

-- Simple repairing using electrofusion

Typical Applications

-- Transportation of Ore Pulp and Tailings

-- Transportation of Corrosive Materials in Mining, Metallurgy, and the Chemical

Industry

-- Transportation of Water under high Pressure.

-- Transportation of Oil and Gas

-- Special environment such as high temperature, curved pipeline, vibrating area, etc

Project Pictures