Pits & Lids

TRI Underground manufactures and supplies a large range of Polyethylene rectangular and circular pits & lids. Plastic pits are easy to install, connect conduits and backfill. Electrical and Communications covers are available in all sizes. NBN, BCC and Telstra lids are available for the sizes relevant to these entities.

Rectangular Range

Pits & Lids - Rectangular RangePits & Lids - Rectangular Range
Pits & Lids - Rectangular RangePits & Lids - Rectangular Range

Pits & Lids sizes available: P1, P2, P3, N1/3, P4, P5, P6,P7,P8,P9

  • Electrical and Communications covers are available in all sizes. (Class A and Class B)
  • NBN, Telstra and BCC lids are available for the sizes and load ratings relevant to these entities.
  • If you require Infill, Traffic Signal or custom lids to suit your project, ask our sales team for assistance. 

 

QLD TMR Range

TRI Underground are committed to supplying quality products into the QLD TMR network, with a large range of stock held products which are manufactured to the TMR Standards. Class B Galvanised Steel Anti-slip Communications and Electrical Lids are available for all MR Pits. Approval certificates can be provided upon request.

Our current TMR range includes the following;

Rectangular Pits

Rectangular PitsRectangular Pits

Pit and lid sizes available: P1, N1/3, P4, P7, P8.

  • Pits made to 1631 MR Standard Drawing
  • Lids made to 1632, 1633 and 1634 MR Standard Drawing

 

TRITUFF Type 4 Composite cover

TRITUFF Type 4 Composite coverTRITUFF Type 4 Composite cover
  • Lightweight
  • Lockable
  • Cover weight 3.8kg
  • Meets MRTS91 standard
  • Cover meets AS3996 Class B Load Rating
  • Available in Electrical and Communications

 

Circular Range

TRITUFF Range – Circular 600 Pits, Composite Collars and Class B Composite covers to suit.

Pits & Lids- Circular RangePits & Lids- Circular Range
  • Circular pits available in 1m and 1.2m
  • Circular pits made to 1415 MR Standard Drawing
  • Cover weight 10kg
  • Covers meets MRTS91 standard
  • Collar weight 5.5kg
  • Collar meets MRTS91 standard
  • Cover meets AS3996 Class B Load Rating
  • Cover meets Australian standard for slip resistance

 

Circular 600 Pits, Class B Cast Iron Collars and Class B Steel covers to suit.

Circular 600 Pits, Class B Cast Iron Collars and Class B Steel covers to suit.Circular 600 Pits, Class B Cast Iron Collars and Class B Steel covers to suit.
  • Circular pits available in 1m and 1.2m
  • Circular pits made to 1415 MR Standard Drawing
  • Cover weight 20kg
  • Covers made to 1417 MR Standard Drawing
  • Collar weight 29kg
  • Collar made to 1416 MR Standard Drawing
  • Cover meets AS3996 Class B Load Rating
  • Cover meets MRTS91 standard for slip resistance

 

Circular 600 Split Pit

Circular 600 Split PitCircular 600 Split Pit
  • For installation around Existing Conduit
  • Multiple cover options available – Composite or Steel
  • Simple to assemble
  • Delivered pre-assembled
  • Assembled Pit Weight 46kg
  • Made to MRTS91 standard

 

Accessories to suit the 600 Circular Range.

Circular RiserCircular Infill Covers

Circular Riser (Left Image)

  • Raises the pit to suit application requirements
  • Circular riser made to 1681 MR Standard Drawing

Circular Infill Covers (Right Image)

  • Galvanised steel
  • Meets AS3996 Class B Load rating
  • Cover weight 18kg
  • Frame weight 25kg
  • Tri part code: 13277 (Concrete)
  • Tri part code: 13664 (Pavers)

 

Circular Split Covers (Slow down for Sam)

  • Used for council vehicle speed monitoring Poles.
  • Lightweight and easy to install
  • Australian Made
  • 7.4Kg Composite Material
  • UV & Wear Resistant
  • Tri part code: 13933 (Electrical)