Underground Slip Coupler (Double Socket)

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  • Hardware > Plumbing > Plumbing Fixture Hardware & Parts > Drains
Slip Coupler (Double Socket) for 110mm Plastic Terracotta Underground Drainage (Suits 110mm... more
Product information "Underground Slip Coupler (Double Socket)"

Slip Coupler (Double Socket) for 110mm Plastic Terracotta Underground Drainage

(Suits 110mm drainage)

Manufactured to BS EN 1401-1!

Double socketed coupling for joining of 110mm plain ended drainage pipes or fittings. No central stop, so can be slipped along pipe, which makes it ideal for replacing sections of pipe and fitting in tight space. Features fixed EPDM rubber seals to both ends. Pipe should be chamfered and lubricated with silicone grease or spray prior to fitting, to ensure the best seal. Insert pipe to central stop and pull back 10mm to provide room for ground movement.

Part of our range of durable and impact resistant fittings for 110mm plastic PVC-u underground drainage pipes, the most common residential system. These lightweight, easy-fit parts are compatible with all systems manufactured to BS EN 1401 or BS EN 13476-2.

The range of pipe and bend fittings are available with pre-chamfered plain or socketed ends, which feature a ring seal for easy and secure connection to different parts of the system. These fittings can be used in conjunction with new or existing inspection chambers, or soakaway crates, to complete the underground drainage system.

Benefits of our Underground Drainage

  • Outstanding strength - resilient to harsh treatment
  • Incredibly light - easier to fit and transport
  • Double-sided finish - looks good on both sides
  • No more timber repairs - will not rot, flake or split
  • Low-maintenance - wipes clean and no need for preservers
  • Decorative finishings - convex/concave top options
  • 75% recycled material - protects natural resources
  • UK Made - manufactured in the United Kingdom
  • 20 Year Warranty - assurance against rotting

Did you know? Underground drainage is manufactured in a terracotta colour to differentiate them from above ground soil and waste pipes, which are typically black, grey or white.


Technical Information

MeasurementValue
System compatibility All 110mm PVC-u systems manufactured to BS EN 1401 or BS EN 13476-2
Material PVC-u (pipes, bends and junctions), Polypropylene (grids, covers and frames), EPDM rubber seal (socket and riser seals)
Colour Terracotta
Certification BS EN 1401-1 : 1998 PVC-U Underground Drainage Systems and EN-1329 (B). KM655203
Guarantee 10 year guarantee

Fitting the 110mm Underground Drainage System

Underground drainage installations, which are usually laid in a trench bottom lined with pea gravel, should be planned in advance. The basic drainage design principle, that all points in the system should be accessible for inspection, testing and cleaning. The system should also be laid to the correct fall, with consideration given to the location of key components, like inspection chambers, gullies, adaptors and rodding eyes.

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