High Strength PVC-O Pipe Extrusion Line

Kairun Machinery High Strength PVC-O pipe extrusion machine can produce PVC-O pipe size range from Ø110 to Ø630mm for PN5 to 25, and Material Class 315 to 500. PVC-O pipe (biaxially oriented polyvinyl chloride pipe) can be used for water supply, minging, gas supply, etc. Kairun uses one step forming method to produce PVC-O pipe which has advantage of less space, low electricity and labour cost, lessmaterial waste.

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High Strength PVC-O Pipe Extrusion Line Introduction

Kairun Machinery high strength PVC-O pipe extrusion line can produce PVC-O pipe size range from Ø110 to Ø630mm for PN5 to 25, and Material Class 315 to 500. PVC-O pipe (biaxially oriented polyvinyl chloride pipe) can be used for water supply, minging, gas supply, etc. Kairun uses one step forming method to produce PVC-O pipe which has advantage of less space, low electricity and labour cost, lessmaterial waste.

Why Called “unbreakable pipe” – PVC-O pipe?

1. Super Toughness:

Biaxially oriented polyvinyl chloride (PVC-O) pipes have outstanding toughness and are therefore called “unbreakable pipes”.

This is because after molecular orientation processing, a thin layered structure is formed. If cracks are generated due to defects and point loads, the layered structure will hinder the cracks from passing through the material.

When the cracks pass through each layer, the stress concentration is reduced and the crack propagation is effectively suppressed.

2. Higher Impact Strength:

Compared with PVC-U water supply pipes, the impact strength of PVC-O pipes is increased by more than 10 times after biaxial stretching.

3. Higher Design Stress:

Due to the outstanding strength and toughness, the 50-year safety factor of MRS45 and MRS50 PVC-O materials can be expressed as 1.6 or 1.4143, so the design stress of PVC-O pipes can be as high as 28MPa and 32MPa.

4. Thinner Pipe Wall and Lower Cost:

Since PVC-O pipes are made by axially and radially stretching the original PVC-U pipes, the wall thickness of the pipes is thinner. Compared with the wall thickness of PVC-O and PVC-U, the wall thickness of PVC-O water supply pipes can be reduced by 35%-40% compared with PVC-U water supply pipes, which greatly saves materials and reduces costs.

Components of PVC-O Pipe Making Line:

PVC Mixer

Mix PVC resin, stabilizer, lubricant, filler, pigment and other raw materials at high speed according to the formula, so that the materials heat up by friction and achieve initial gelation.

Conical Twin-Screw Extruder

The PVC dry mix is melted and plasticized into a uniform melt through the friction heat generated by electric heating and screw shearing, and is continuously and stably transported to the mold.

Extrusion Die Head

Receive the molten material sent by the extruder, form it into a tubular parison, and determine the preliminary inner and outer diameter dimensions of the pipe.