Derwent Industries 316 Stainless Steel Sewer OB’s are Australian manufactured. Sewer OB’s are a permanent sewer branch connection and can also be used for repairs on Non-Pressure Sewer pipelines. Manufactured in accordance with AS4181 and the new WSAA specifications.

• 316 Stainless Steel for superior corrosion protections

• Studs and Nuts coated with molybond to prevent galling

• Sewer OB’s provide a simple and permanent connection whilst supporting the integrity of the main

• Nitrile gasket providing a full circle seal

• Sewer OB’s are fully passivated, ensuring superior quality

• Junctions available in 45º and 90º (45º as standard, 90º as specials)

• uPVC coupling attached to offtake to allow for ease of connection to PVC property drain

• All studs are supplied with plastic thread protectors

• Junction does not extend past the end of the clamp

The Derwent Industries Sewer OB’s are ideal for new service connections on existing or new sewer mains. The Sewer OB’s can also be used for repairing and reconnecting a damaged branch. Sizes are available for new and older styles of sewer mains.

Size Range: DN100 - DN450

Offtake Sizes: DN100/150/225

Temperature Range: -10ºC to 60ºC

Max. Operating Pressure: 100kPa

Quality Assurance: ISO9001:2015