Concrete channeling
for drainage systemsperforated

Concrete channeling - CPM Group Ltd  - for drainage systems / perforated
Concrete channeling - CPM Group Ltd  - for drainage systems / perforated
Concrete channeling - CPM Group Ltd  - for drainage systems / perforated - image - 2
Concrete channeling - CPM Group Ltd  - for drainage systems / perforated - image - 3
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Characteristics

Material
concrete
Application
for drainage systems
Other characteristics
perforated
Diameter

Max.: 600 mm
(24 in)

Min.: 0 mm
(0 in)

Description

Marshalls CPM manufactures precast concrete perforated pipes up to 600mm diameter that transport and distribute storm water into the rock filled trench and eventually into the surrounding area through the circular perforations. Concrete perforated pipes are suitable for field drains or french drains. Perforated pipes are no longer a British Standard product. The pipes are drilled whilst wet and the semi-dry nature of the concrete used in the manufacturing process leads to spalling on the inner and outer surfaces around the holes. This is cosmetic only and does not affect the integrity of the pipes for land drainage use. Perforated pipes comply with the Department of Transport Specification for Highway Works, which states the total area of drainage holes should not be less than 1000mm2 per metre length of pipe. Note Seals are normally SBR complying with BS EN 681-1. Other compounds such as Nitrile or EPDM can be supplied but may not be available from stock. Marshalls CPM Flexi-lift system for handling and jointing of pipes from 1200mm to 1800mm is available upon request. Lorries with crane off load facilities are available for pipes up to 600mm upon request, site assistance is required on certain diameters. When ordering pipes which may have to joint with pipes already on site or those previously laid, particularly extensions to contracts, it is important to advise the sales team in order to eradicate any jointing issues. Marshalls CPM lubricant is advised for use on integral pipes, Marshalls CPM cannot guarantee that the jointing of concrete pipes with the use of other lubricants will be successful.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.