Alternative Pipe System for GRP Pipe for non pressure Applications

Diameter 600 to 2000 mm

STEEL REINFORCED PE SPIRAL CORRUGATED PIPE MANUFACTURING LINE

General Description

The diameter of the pipe is from 800 mm to 2000 mm. The obvious advantage of the new composite pipe is the high stiffness and low cost if compared with the universal buried plastic sewage pipe. The ring stiffness reached S10 to S15, which is a surprise value for other plastic pipes.

With the collaboration and supporting of some famous Chinese pipe manufacturers, and spends almost one year and hundreds testing and modification, finally in August of 2003, Goldstone has developed the novel steel reinforced spiral corrugated pipe successfully. The product has the same structure of COMPETITORS product and even better surface.

Production Character

u Patented plastic-steel bonding and forming technology makes the reliable composite and high performance pipe.

u Special designed steel bending device could form the reinforce layer easily.

u The production line is flexible to change different size conveniently.

u The most economy solution for large size sewage pipeline system

u New structure spiral corrugated pipe

u Innovation composite structure

u Excellent ring stiffness, SN10-15

u Perfect weight and material cost

Advantages

l All layers of the pipe are composite under the plastic melting condition, so the welding of the layers is very safe and reliable. It is totally different from the double wall spiral pipe.

l The innovative pipe provides a high stiffness, less weight and low cost.

l The pipe has the same outstanding anti-corrosive property and convenient installation as other plastic pipes.

l The connection of the pipe could use various joint like plastic welding, stainless steel couple and heat shrinkable couple depend on the installation conditions. The new connection solution is under developing.

The follow sheet is the comparison of Reinforced pipe and spiral pipe.

ID mm	Steel reinforced spiral		Plastic spiral		Weight Comparison
	Ring stiffness	Kg/m	Ring stiffness	Kg/m
800	15.6	34	8	63.3	34/63.3=0.54
1000	12.9	48	8	126.7	486/126.7=0.38
1200	12.9	69	8	166.5	69/166.5=0.41
1300	12.9	80	8	2205.2	80/205.2=0.39
1500	12.9	115	8	288.2	115/288.2=0.40
1800	12.5	142	8	407.3	142/407.3=0.34
2000	11.5	163	8	499.0	163/499=0.33

We should notice that the weight of polyethylene only takes 60% of the total weight of the steel reinforced pipe. Because of the continuous raising of the oil price, the cost for polyethylene is also raised very high. But the cost of carbon steel is just about half price of polyethylene. So considering in general, the reinforced spiral pipe is a very economy solution for large size sewage pipe system.

Application range

l Civic buried drainpipe, sewage pipeline

l Industrial waste

l Seawater, rainwater pipeline

l Water collection system

l Water treatment works

Machine	DN	Ring Stiffness	Kg/ meter	Length
1200	800	≥10	34	6000 8000 9000
	900	≥10	42
	1000	≥10	48
	1200	≥10	69
2000	1300	≥10	80
	1500	≥10	115
	1800	≥10	142
	2000	≥10	163

Connection Methods of Reinforced Spiral Corrugated Pipe

Methods of Extrusion Welding, Heat Shrinkable Couple, Half-Couple, Socket and Electro fusion Sheet Connection are list below:

1-Extrusion Welding

2-Heat Shrinkable Couple

3-Half- Couple

4-Socket

5-Electro fusion Sheet Connection

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