Densleeve Clay Drainage
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The Naylor DENSLEEVE underground clay drainage system of plain-end vitrified clay pipes and fittings with flexible sleeve couplings, was developed for building drainage and associated sewerage and is manufactured to comply with the stringent requirements of BS EN295.
Sizes are DN100, 150, 225 and 300 (200 and 250 for Continental Markets).
Densleeve Clay Drainage Structural Performance
Densleeve clay drainage pipes can usually be laid directly on a hand trimmed natural trench bottom with selected, excavated materials (Class D Bedding) used as backfill.
Densleeve Clay Drainage Manufacturing Specifications
Vitrified clay plain-end pipes and fittings, manufactured in accordance with the requirements of BS EN295-1
Sleeve Couplings are manufactured in high impact polypropylene with elastomeric seals providing watertight, flexible mechanical joint assemblies, complying with BS EN295-1: System G.
Standard Coupling Seals are manufactured from elastomers conforming to the performance requirements of BS EN681-1.
It is a major advantage of the Densleeve clay drainage system that the plain-end pipes can be quickly and easily cut to intermediate lengths on site and can still be jointed using the flexible couplings. This feature retains the ease in jointing, reduces wastage and damage and is particularly cost effective.
Originally developed in DN100 and DN150 specifically for "Round the Building" drainage, the range now includes DN225 and DN300 pipes and fittings for sewerage and road drainage applications, plus DN200 and DN250 developed for Continental European Markets.
The flexible joints ensure that the pipeline will accommodate minor settlement and ground movement without failure. Vitrified clay pipes and fittings are rigid and do not distort under loading. Their high inherent strength ensures stability under even the highest loadings.
Densleeve Clay Drainage Pipe Lengths and Delivery
Naylor clay drainage pipes are supplied in easy-to-handle lengths. They are delivered in convenient packs with optional mechanical offloading equipment available on the delivery vehicle.
Densleeve Clay Drainage Range - UK
|
Pipe Nominal |
Standard Length |
Number |
Approx Weight |
| 100 | 1.6 | 79 | 1.25 |
| 150 | 1.75 | 41 | 1.25 |
| 225 | 1.75 | 20 | 1.45 |
| 300 | 1.75 | 12 | 1.75 |
Densleeve Clay Drainage Range - Continental Sizes
|
Pipe Nominal |
Standard Length |
Number |
Approx Weight |
| 200 | 1.75 | 24 | 1.35 |
| 250 | 1.75 | 12/16 | 1.84 |
An extensive range of fittings is also available, including bends, junctions, tapers and access items.
Densleeve clay drainage can be used in conjunction with other Naylor underground clay drainage systems and with other manufacturers' above-ground systems. Connections are made by using purpose made connectors and adaptors or by the use of Band-Seal couplings.
Pipe lengths and pack sizes are standard at the time of publication but may vary due to changes in manufacturing facilities.
Densleeve Clay Drainage Availability - UK
Densleeve clay drainage is available either directly from the manufacturer, from Naylor stocking depots or from hundreds of Merchant Stockists throughout Britain - contact the Naylor Sales Department for details.
Densleeve Clay Drainage Availability - Overseas
Naylor clay drainage products are exported throughout the world. Pipes are suitably packed or crated and delivery can be by containers as well as by conventional shipping services. Stocks are held by Agents or distributors in several countries - contact the Naylor Export Department on 01226 794028/794074 for details.