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Twinwall Road Drainage System

Condron Concrete Works Twinwall Plastic Pipes are available in 100mm, 150mm, 225mm, 300mm, 375mm integrated sockets 450mm diameter straight, 600mm, 700mm and 900mm integrated sockets with couplers and can be supplied with associated fittings. Twinwall HDPE Plastic Pipes have Irish Agrément Board Certification and British Board of Agreìment Certification.

During production there is continuous quality control on all critical parts of the production process to ensure wall thickness, internal diameter, weight, external diameter and that socket diameters are all within dimensional tolerances.

Quality Control
Test
Appearance (visual inspection)
Dimensional accuracy
Perforation dimensions and appearance
Impact resistance
Short term stiffness
In our purpose built lab, continuous assessment is carried out for melt flow index, ring stiffness, ring flexibility, impact resistance, heat resistance, internal pressure tests and jointing tests to the latest International and European Standards. Sealing ring are certified to EN681 and designed to exceed 0.5bar while under deflection and shear.

Advantages of Condron Concrete Works Twinwall 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 conditions).
  •  Smooth interior, resulting with less blockages and greater flow rates.
  •  It also 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/m2.
  •  Resistance to water jetting.
  •  Can be laid to a depth of up to 10m (depending on ground conditions).
Standard Twinwall Pipes
ID Ø mm OD Ø mm Length (m) Weight kg/m (Approx.) Socketed / Straight
100 116 6 0.70 Straight
150 175 6 1.20 Socketed
225 260 6 2.38 Socketed
300 345 6 4.10 Socketed
375 435 6 6.80 Socketed
450 500 6 8.20 Straight
600 680 6 18 Socketed
750 842 6 25 Socketed
900 1016 6 33.5 Socketed
Perforated Twinwall Pipes Perforated Twinwall Pipes Perforated Twinwall Pipes Perforated Twinwall Pipes Perforated Twinwall Pipes
ID Ø mm OD Ø mm Length (m) Weight kg/m (Approx.) Socketed /Straight
100 116 6 0.70 Straight
150 175 6 1.20 Socketed
225 260 6 2.38 Socketed
300 345 6 4.10 Socketed
375 435 6 6.80 Socketed
450 500 6 8.20 Straight
600 660 6 18 Socketed
750 Made to Order 6 25 Socketed
900 Made to Order Socketed
Pipe Dimensions
Nominal internal pipe diameter d1 (mm) External pipe diameter d2 (mm) t1 optimum (mm) t2 optimum (mm) t3 optimum (mm) Nominal length (m) Nominal weight (kg/m-1 Approx.) Pitch (mm)
100 116±2 0.6 1.2 0.8 6 0.70 13.25
150 175±2 0.68 1.4 1.3 6 1.20 26.61
225 260±2 1.28 1.55 1.19 6 2.38 34.80
300 345±2 1.26 2.25 1.53 6 4.10 41.13
375 435±2 1.42 2.7 2.1 6 6.80 50.27
450 500±2 2.1 3.4 2 6 8.20 56.55
600 680±3 2.8 4.6 3 6 18 75.40
750 842±4 3.2 5.2 3.4 6 25 87.97
900 1016±5 3 5.2 3.7 6 33.5 105.56
Perforated Pipe Details
Internal pipe Ø (nominal)(mm) No. of slots per dwell No. of dwells per metre Slot length (mm) Slot width (mm) Permeable area min.(mm2/m-1)
100 6 74 10-15 1.2-1.5 5256
150 6 39 15-32 1.0-1.5 3510
225 6 29 10-30 3.0-3.5 5220
300 6 25 15-31 3.0-3.5 6750
375 6 20 20-42 2.7-3.5 6480
450 4 18 35-50 3.0-3.5 7560
600 4 14 120 4.5-5.5 30240
750 Made to order
900 Made to order
Semi-Perforated Pipe Details
Internal pipe Ø (nominal)(mm) No. of slots per dwell No. of dwells per metre Slot length (mm) Slot width (mm) Permeable area min.(mm2/m-1)
100 3 74 10-15 1.2-1.5 2628
150 3 39 15-32 1.0-1.5 1755
225 3 29 10-30 3.0-3.5 2610
300 3 25 15-31 3.0-3.5 3375
375 3 20 20-42 2.7-3.5 3240
450 2 18 35-50 3.0-3.5 3780
600 4 14 120 4.5-5.5 15120
750 Made to order
900 Made to order

Land Drainage Pipe (Coils)

Manufactured from recycled plastic, Land Drainage Pipes are manufactured in a range of internal diameters 64mm, 80mm, 94mm, 100mm and 150mm. Available in varying coil lengths and is specifically designed to for land drainage management. It offers significant improvements in areas where poor drainage negatively affects ground stability

The flexible nature of the Land Drainage Pipe makes it suitable for agricultural applications, road drainage, sports and leisure projects and drainage of water logged areas.

Land Drainage Pipe - Manufactured in accordance to B.S.4962
ID Ø mm OD Ø mm Length (m) Weight kg/m (Approx.) Socketed /Straight
64 80 50 or 100 0.30 Straight
94 110 50 or 100 0.36 Straight
100 116 50 or 100 0.37 Straight
150 175 35 0.80 Straight

Specific lengths available on request, please contact our sales team for further information.

Advantages:
The Condron Concrete Land Drainage pipes is to B.S.4962 is an effective sub-surface drainage system and can assist in the following;

  • Reduces ponding in low permeable soils.
  • Lowers surrounding water table to assist flood relief.
  • Drier soils greatly increase agricultural and recreational activities.
  • Suitable for all types of soils.
  • Slot perforated for superior drainage.
  • A full range of fittings available for various connections.
Material properties/ Typical values 2EA3F2
Property Test method reference
Bulk Density EN ISO 60: 2000
Melt Mass Flow Rate (MFR) EN ISO 1133: 2005 Procedure A (2.16 Kg)
Ash Content EN ISO 3451 Method A
Izod Impact EN ISO 180 Type A
Tensile Stress @ Yield EN 527-2 Type A1
Tensile Strain @ break EN 527-2 Type A1
Oxidation Induction time BS EN 728
Coupler Fitting Pipe Diameter Offset Pipe Diameter Offset
100mm 150mm 225mm 300mm 375mm 450mm 600mm 750mm 900mm
Straight Made to order Made to order Made to order
Table 3 Coupler Dimensions
Nominal internal/external pipe diameter (mm) Internal Diameter Internal Diameter (mm) Nominal length (mm) Nominal seal height (mm)
pipe diameter (mm) At first dwell (mm) At second dwell (mm) Nominal length (mm) Nominal seal height (mm)
100/129 118.0 118.0 145.0 10.4
150/260 178.5 178.5 180.0 17.2
225/260 264.5 264.5 220.0 27
300/345 346.5 346.5 245.0 31
375/435 439.5 439.5 330.0 38.7
450/435 508.0 508.0 335.0 36.9
T - Junctions Fitting Pipe Diameter Offset
100mm 150mm 225mm 300mm 375mm 450mm
100mm
150mm
225mm ✓*
300mm ✓* ✓* ✓*
375mm ✓* ✓* ✓* ✓* ✓*
450mm ✓* ✓* ✓* ✓* ✓* ✓*
600mm Made to order
750mm Made to order
900mm Made to order
Note: * denotes fabricated and pressure tested to order
Y - Junctions Fitting Pipe Diameter Offset
100mm 150mm 225mm 300mm 375mm 450mm
100mm
150mm
225mm ✓*
300mm ✓* ✓* ✓*
375mm ✓* ✓* ✓* ✓* ✓*
450mm ✓* ✓* ✓* ✓* ✓* ✓*
600/680 Made to order
750/842 Made to order
900/1016 Made to order
Bends Pipe Offset
11.25º 15º 22.5º 30º 45º 90º
100mm ✓*
150mm ✓* ✓*
225mm ✓* ✓* ✓* ✓*
300mm ✓* ✓* ✓* ✓*
375mm ✓* ✓* ✓* ✓* ✓* ✓*
450mm ✓* ✓* ✓* ✓* ✓* ✓*
600mm Made to order
750mm Made to order
900mm Made to order
Reducer Fitting Pipe Diameter Pipe Diameter
100mm 150mm 225mm 300mm 375mm 450mm
100mm
150mm
225mm
300mm
375mm
450mm
600mm
750mm
900mm
Note: * denotes fabricated and pressure tested to order

PA Saddle Description
A Plastic Adaptor saddle to connect a 160mm OD PVC lateral pipe into a large diameter Twin Wall or Ribbed Sewer pipe DN 300mm – DN 600mm.
Pipe Diameter Saddle Diameter Offset
150mm
300mm
375mm
450mm
600mm

Standard Couplings Description
Designed for sewerage, drainage and all non and low pressure applications up to 2.5 bar.
When used individually or combined with bushes, Flexseal Standard Couplings have many applications in the construction, repair and maintenance of pipe systems:

  • As a joint for plain ended pipes
  • Repair and maintenance of existing pipelines
  • Connecting short and cut lengths of pipe
  • Making post construction connections to an existing pipeline
  • Reconnection of laterals on renovated sewers
Pipe Diameter Repair Couplings
Pipe Diameter 100mm 150mm 225mm 300mm 375mm 450mm
100mm
150mm
225mm
300mm
375mm
450mm
Pipe Lubricant Description – For plastic pipes.
Pipe Lubricant NEUTREX® for plastic pipes: a white, water miscible paste based on synthetic materials. Standard application: general plumbing and construction. Neutrex is approved for drinking water applications after DVGW as well as WRAS.

Condron Concrete Works Twinwall Pipes can be delivered with any order for Roof Tiles, O.G. Pipes, S&S Pipes, Manhole Rings, Manhole Covers and Road Gullies on the same delivery.

Internal Pipe Ø Approx. Number of Structural Twinwall pipes per bale
100mm 77
150mm 36
225mm 14
300mm 8
375mm 5
450mm 4
600mm 2
750mm 1
900mm 1

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