Product Type: Clay Rocker Pipe
Nominal Diameter: 225mm
External Diameter: 278mm (+/-4)
Standard Length: 0.6m
Min Crushing Strength: 45kN/m
Bending Moment Resistance: 9.0kN/m
Max. Deviation from Straightness: 4mm/m
This 225mm diameter vitrified clay plain-end rocker pipe is designed to help a drainage system accommodate differential settlement by creating a flexible joint between the main pipeline and a solid structure (such as a manhole chamber). Densleeve clay pipes are manufactured in accordance with the requirements of BS EN295-1 and produced in standard lengths that are convenient for handling/laying. This allows for flexible joints to be made at sufficiently frequent intervals to enable a pipeline to withstand settlement or other ground movement after installation.
When installed in general accordance with the Naylor Sitework Instructions, the Naylor Densleeve system meets the latest technical requirements of the Building Regulations, BS8005 and BS8301.
Product Features at a Glance:
- Flexible joints accommodate minor settlement and ground movement
- Rigid design ensures stability even at extreme depths of cover.
- Good corrosion resistance
- Can accommodate thermal shock of up to 70°.
- Extremely durable with an unlimited lifespan (for design purposes)
- Straightforward manual push fit operation for quick installation
- Testing and backfilling can start immediately.
- Easy to cut on site and jointed using normal couplings.
Customer Advice: Plain ended clay pipes and fittings require Clay Pipe Couplings for jointing unless otherwise stated. Naylor’s Universal Joint Lubricant is also recommended to aid with manual push fit connections.
The Naylor Densleeve range offers a full system of plain-end, vitrified clay pipes and fittings, with flexible sleeve couplings. It was developed for building drainage and associated sewerage systems and all products are manufactured to comply with the stringent requirements of BS EN295.
Key Features of the Naylor Densleeve System:
- Aggressive Environments - The standard Densleeve pipes, polypropylene couplings and elastomeric sealing rings are resistant to attack from substances which are commonly encountered in sewers.
- Clayware - standard lengths of pipe allow for flexible joints at sufficiently frequent intervals to enable the pipeline to withstand settlement or other ground movement after installation.
- Sleeve Couplings - Manufactured in high impact polypropylene with elastomeric seals providing watertight, flexible mechanical joint assemblies, complying with BS EN295-1: System G.
- Standard Coupling Seals - manufactured from elastomers conforming to the performance requirements of BS EN681-1. (Nitrile seals available for use in contaminated ground).
- Joint Performance - joint assemblies meet all the requirements of BS EN295-1. They accept angular deflection and shear resistance without leakage, when tested under an internal or external water pressure of 50kPa (5 metres head).
- Structural Performance - Densleeve pipes can usually be laid directly on a hand trimmed natural trench bottom with selected, excavated materials (Class D Bedding) used as backfill.
- Crushing Strengths - Naylor has standardised the strength of their pipes to meet the requirements of BS EN295-1 and simplify selection.
- Full Range - A full system is offered from DN100 to DN300 with an extensive range of fittings, including bends, junctions, tapers and access items, particularly suitable for building drainage applications.
- Water Jetting - The Densleeve system, when installed in general accordance with the Naylor Sitework Instructions Booklet, is guaranteed for the lifetime of the system against penetration of the pipe wall caused by high pressure water jetting when operated within the following maximum parameters.
- Pressure - 7500psi (510 bar)
- Flow rate - 20gals/min (1.5ltrs/sec)
- Time - Static for 5 minutes
Manufacturer's Notice: The pipe and fittings specifications detailed are standard at the time of publication but may vary due to changes in manufacturing facilities.
Please Note: All images shown are used for illustration purposes only and may differ from the actual product supplied.
- 5 - 7 working days
- Product Type:
- Clay pipe
- Nominal Size: