CPM

NULL

Modular Pipe Systems

The increasing impact of developments in urban areas compromises the natural flow patterns of the water cycle, leading to an increase in the volume and flow rate, together with detrimental impact on the quality of surface water runoff.

The increased volume of water runoff, coupled with faster flow rates could lead to an increased risk of flooding downstream if the local sewer or watercourse does not have sufficient capacity to cope. In these situations extra attenuation will be required, but normally with a restriction on the flow rate from the site. The CPM Group has developed a tank system for attenuation comprising of standard components.

The range of standard components consists of:

  • Flexible jointed pipes / short length pipes
  • Spigot butts / socket butts
  • Stop end bends
  • Stop end pipes
  • Side entry manholes
  • Connecting pipes

Modular Pipe System

To complement the system, the Hydro-Bake® chamber can be used to provide flow control.

For full details contact our Sales Department.

Benefits:

  • Complete package.
  • Established & proven product range.
  • Inherent structural strength of concrete.
  • Versatile range of standard components available to suit most installation requirements.
  • System can be designed to suit various site applications.
  • System can be designed to suit most structural & hydraulic specifications.
  • Sound engineered cost effective solutions.
  • No or minimal on site fabrication.
  • Well-known installation techniques.
  • Quality Assured.
  • 120 year design life.
  • Can be installed under roads.

Typical Tank System

Typical on line tank system

Stormwater Attenuation Components

Flexible jointed pipes:

The inherent strength of standard flexible jointed pipes ensures economic bedding design.

Pipes are manufactured and tested to BS EN 1916: 2002/ BS5911-1:2002 and kitemarked.

Flexible Jointed Pipes

Stop end bends:

Stop end bends are a dual function unit that combines a stop end for the pipe run and an access point. The unit utilises a 90° pipe bend to form the manhole. An incoming or outgoing small diameter pipe can also be accommodated. (up to and including DN1350)

Stop end bends

Stop end pipe:

Large diameter pipe with an end wall (cast into socket or spigot end of pipe) into which an incoming or outgoing small diameter pipe can be accommodated.

Stop end pipe

Side entry manhole:

Side entry manholes are an economic form of manhole construction utilising fabricated pipe/manhole as a single unit. These units are ideal for maintenance and inspection access.
(DN1200-1800)

Side entry manhole

Pipe DN
A
Barrel OD
B
Socket OD
C
Effective length
D or D1 + D2
Shaft height
E
Int. volume
m3
750 904 1060 2500 - 1.105
825 985 1143 2500 - 1.336
900 1100 1270 2500 - 1.591
1050 1265 1455 2500 - 2.165
1200 1435 1640 2500 - 2.828
1350 1620 1840 2500 1000 3.579
1500 1810 1810 2500 1250 4.418
1600 1920 1920 2500 1250 5.027
1800 2160 2160 2500 1500 6.363

All dimensions in the above table are in millimetres. (unless specified otherwise).

image_001
image_002
image_003