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Twinwall Plastic Pipes

We now stock a comprehensive range of Twinwall Plastic Pipes and accessories available at our Maghull Depot.

Quality products with low prices.

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Advantages of using our Twinwall Plastic Pipes

  • Low weight 6m pipes with/without socket for safer and faster installation
  • High chemical resistance
  • High impact resistance which may permit faster backfilling (depending on ground condition)
  • Smooth interior, resulting with less blockages and greater flow rates
  • Permits easy cable installation
  • Slight curves can be fabricated to adapt to on site requirements
  • Joints are guaranteed to a 5m head of water
  • Made from recycled materials
  • High durability pipeline
  • Ring stiffness in excess of 6kn/m squared
  • Resistance to water jetting
  • Can be laid to a depth of up to 10m (depending on ground conditions)

The Twinwalled Plastic Pipes are compliant with EN 13476-3:2009 and have Irish Agrement Board Certification and  have just attained BBA accreditation.

 

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Pallet Quantity as Follows:

150 mm  –  36 per pallet
225 mm  –  14 per pallet
300 mm  –  8 per pallet
450 mm  –  4 per pallet

** 100 mm coming soon **

 

Prices each (exc VAT):

150 mm  x 6m (solid pipes)  –  £15.50
150 mm 30° Bends (solid pipes)  –  £9.50

225 mm  x 6m (solid pipes)  –  £28.50
225 mm 30° Bends (solid pipes)  –  £22.50

300 mm  x 6m (solid pipes)  –  £39.50
300 mm 30° Bends (solid pipes)  –  £37.50

450 mm  x 6m (solid pipes)  –  £132.50
450 mm 30° Bends (solid pipes)  –  £64.50

** 100 mm coming soon **

Full rises manhole covers and axillary products supplied POA.

 

** Coming Soon **

A unique customer driven software via the Condron website that can work out all drainage and surface water calculations.  3D printers are currently being installed for greater flexibility with all your future projects.

 

Installation Guide

General

The pipes are installed using traditional drain-laying methods in accordance with NRA specifications and in accordance with HSA requirements and the MCDRW, Volume 1, Clauses 503, 505, 518.7 518.8 and NRA HD 140/15. Due to the lightweight nature of the pipe material, handling and jointing are easily performed. Pipes are available with a fixed socket or a connection collar.

Before laying the pipes and fittings must be checked for damage that may have occurred in transit or storage prior to installation. Damaged pipes or fittings must not be installed. The laying should be commenced at the lower end of the pipeline run (from the outlet). The pipes are usually laid so that the sockets face to the top of the pipeline run. When 2 pipelines are laid side by side appropriate separation should be allowed to permit the appropriate compaction of the material between the 2 pipe runs.

Sealing rings are enclosed separately in order to avoid damages

Trench Preparation

Trenches should not be excavated too far in advance of pipe installation and should be supported by trench boxes where required by Health and Safety requirements.

Trenches should be as narrow as practicable, generally the pipe diameter + 300 and 600mm. Where multiple pipes are installed in a trench sufficient spacing should be allowed between them to ensure that there are no voids and the material can be fully compacted. Local soft spots in the trench base should be excavated and filled with a suitable compacted granular material.

The bedding material is laid below the Twinwall Road Drainage pipe to provide uniform support and to permit small adjustment of the pipe’s line and level. All bedding material is to be compliant with the engineers’ specification. No temporary supports (blocks of bricks, stones, wood, metal or other similar objects) should ever be used to prop the pipe during the installation process as it can damage the pipe integrity and cause pipe deformation.

Backfill

The embedment, the main backfill and the removing of the shoring should be carried out in order that the pipe connections and bedding are capable of bearings. The material for the bedding, the main backfilling and the covering shall meet the planning guidelines. Each covering has to be compacted either by hand or with a compacting plant. The covering above the soffit shall have a height of 300mm. For the main backfill the excavated material can be used, once the particle size is not larger than 300mm. For the main backfill equipment for mechanical compaction may be used. It is important to ensure that the main backfill is carried out in accordance with planning guidelines and NRA Manual of Contract Documents for Road Works (MCDRW).

Download our Structural Corrugated Twinwall brochure here