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EziPit®
The Iplex EziPit® 425 (MS), EziPit® 600 (MC) and EziPit® 1000 (MH) offer significant benefits in sewer construction and flexibility in sewer networks. The environmental, technical and economical demands of water authorities for a water-tight, corrosion proof, stable and durable sewer system are now a reality with the Iplex EziPit® systems.
Contact us today to discuss how the EziPit® sewer pit range will benefit your next sewer maintenance project.
Applications
Applications
The EziPit® is a polypropylene inspection and maintenance structure (Maintenance Shaft, Maintenance Chamber or Maintenance Hole) designed for buried gravity sewer applications. This easy-to-install sewer pit system complements our plastic pipeline systems and is designed with practical inspection shafts and maintenance holes for easy surveying and upkeep. It consists of a base, a single wall corrugated riser, a reducing cone for maintenance holes and a range of covers designed for trafficable and non-trafficable areas. The design allows safe access to the sewer from the surface.
Sewer Access Shafts, Chambers and Maintenance Holes are used (where practicable) at every:
- Change of alignment
- Junction
- Change in the size of a sewer
In addition, the sewer pits are used at specified intervals for inspection and maintenance. National Sewer Standards and Codes specify requirements for the location and spacing of Inspection Shafts and Sewer Access Chambers.
Contact us today to find out more about how sewer pits and related systems from the EziPit® range will benefit your next sewer maintenance project.
EziPit® Product Catalogue and Technical Guide
Advantages
The benefits of polypropylene in gravity sewer pits or sewerage systems include high resistance to sulphuric acid erosion, low specific weight and high modulus, producing a stiff lightweight structure and resistance to abrasion and resistance to surface wear.
The overall benefits of the EziPit® system include:
| Features | Benefits |
| Flexibility | The base includes adjustable pipe sockets which allow the pipe grade or angle to be adjusted up to 7.5o in any direction in the trench. |
| Long Service Life | Polypropylene base and drainage riser for chemical resistance in sewer environments. |
| Robust & Flexible Riser | Flexible corrugated sewer riser accommodates ground movement and dynamic traffic loads without cracking or breaking. The riser is easily cut on-site for height adjustment. |
| In-ground Performance | Fully resistant to external loads up to a depth of 6 metres and water tight up to 5 metres. |
| Ease of Installation | Light-weight modular components for ease of handling in deep trenching. |
| Safety Performance | Can be assembled and backfilled at the same time as the sewer pipe, reducing costs in plant, labour and the risks associated with open excavation. |
Material Options
Material Options
Material Properties
| Polypropylene Property | Value & Unit |
| Density of Pipe Compound | 900 kg/m³ |
| EziPit® 425 Riser - Ring Bending Stiffness | 4000 N/m/m |
| EziPit® 600 Riser - Ring Bending Stiffness | 8000 N/m/m |
| EziPit® 1000 Riser - Ring Bending Stiffness | 4000 N/m/m |
| Flexural Yield Stress | 24.5 MPa |
| Tensile Yield Stress (50mm/min) | 28 MPa |
| Tensile Yield Strain (50mm/min) | 6% |
| Poisson’s Ratio | 0.45 |
| Thermal Co-efficient of Linear Expansion | 150 x 10-6 / K |
Note: These are typical values, which can be used for buried flexible design purposes. Actual values may vary slightly for different sources of polymer.
Product Details
Product Details
Standards and Approvals
All components of the EziPit® range, including sewer pits, inspection shaft covers, drainage risers, and maintenance holes comply with the following Standards:
- WSA 137 Industry standard for Un-plasticised Polyvinyl Chloride (PVC-U), Polypropylene (PP) and Polyethylene (PE) maintenance shafts, maintenance chambers and maintenance holes for sewerage.
- I.S.EN 13598-2 'Plastics Piping Systems for Non-pressure Underground Drainage and Sewerage – Unplasticised Poly (Vinyl Chloride) (PVC-U), Polypropylene (PP) and Polyethylene (PE) - Part 2: Specifications for Manholes and Inspection Chambers'.
- ISO 13272 ‘Plastics Piping Systems for Non-pressure Underground Drainage and Sewerage – Unplasticised Poly (Vinyl Chloride) (PVC-U), Polypropylene (PP), Polypropylene with Mineral Modifiers (PP-MD) and Polyethylene (PE) - Part 2: Specifications for Manholes and Inspection Chambers in Traffic Areas and Deep Underground Installations.
- EN14396 'Fixed Ladders for Manholes'.
- AS/NZS 5065 ‘Polyethylene and Polypropylene Pipes and Fittings for Drainage and Sewerage Applications’.
- AS 3996 ‘Access Covers and Grates’.
- AS 1646 ‘Elastomeric Seals for Waterworks Purposes’.
These Standards specify the material, performance and design requirements for plastic sewer maintenance Shafts and Chambers, ensuring adequate resistance to site loadings and durability in operation. The structural strength of the EziPit® sewer pit is sufficient to deal with 6m depth of cover and tightness is ensured to withstand a pressure of 0.5 Bar vacuum or 5m water column.
The following Product Specifications are also relevant:
- WSA PS-315 Fixed Ladders for Man Entry Structures - Water Supply and Sewerage
- WSA PS-337 Maintenance Chambers (MC) – Polypropylene (PP) for Non-Pressure Applications – Gravity Sewerage
- WSA PS-341 Maintenance Shafts (MS) - Polypropylene (PP) for Non-Pressure Applications – Gravity Sewerage
- WSA PS-340 Maintenance Holes (MH) - Polypropylene (PP) for Non-Pressure Applications – Sewerage
- WSA PS–290 Access Covers and Frames for Water Supply and Sewerage to WSA 132
- WSA PS–240 Polypropylene (PP), Ribbed Construction
- WSA PS-230 Polyvinylchloride, Unplasticised (PVC-U) Pipes and Fittings for Non-Pressure Applications - Sewerage and Drainage.
EziPit® maintenance chamber and shaft components are manufactured under a third-party certified Quality Management System (QMS) complying with AS/NZS ISO 9001 and have ISO Type 5 product certification.
The EziPit® has been appraised by WSAA and the product appraisal report No 09/01 Issue 4, ‘EziPit® Polypropylene (PP) Inspection and Maintenance Chambers and Shafts’ was published on the 22nd September 2017.
EziPit® 425 Sewer Maintenance Shaft
| DN425 polypropylene base | The DN425 Polypropylene Base is available with adjustable rubber ring joint sockets compatible with smooth wall DWV PVC-U pipes manufactured to AS/NZS 1260. The pre-benched EziPit® 425 bases are available with 6 different flow profiles allowing changes in direction and side inflow connections. The standard profiles are 30°, 60°, 90°, straight through (180°) and double sweep junction profile for DN150 DWV pipe and straight through (180°) profile for DN225. |
| DN425 polypropylene corrugated riser | The DN425 Corrugated Riser is available in 2m, 3m and 6m lengths, it can be cut on-site to adjust the height of the shaft. The DN425 Corrugated Riser is orange/brown in colour |
| SBR (styrene-Butadiene Rubber) seals | SBR seals are used for a high-performance leak-tight unit |
| Cover arrangements | Cover arrangements suitable for both trafficable conditions (Class D) and non-trafficable conditions (Class B) are available for different installation requirements (Cap and Lid arrangement or 'Top Hat' Frame) |
| Riser inflow connection | Riser inflow connection consists of a moulded polypropylene Riser Junction with spigot off-take. A standard PVC DWV RRJ coupling and level invert taper (LIT) provides an effective joint with the PP spigot off-take. |
Iplex EZIpit® 425 Sewer Maintenance Shaft MS Product Overview
EziPit® 600 Sewer Maintenance Chamber
| DN600 polypropylene base | DN600 polypropylene base with adjustable rubber ring joint sockets compatible with smooth wall DWV PVC-U pipes manufactured to AS/NZS 1260. The pre-benched EZIpit® 600 bases are available with 6 different flow profiles allowing a change in direction and side inflow connections. The standard profiles are 30°, 60°, 90°, straight through (180°) and double sweep junction profile for DN150, DN225, DN300* DWV pipe (*subject to availability). |
| DN600 polypropylene corrugated riser | DN600 polypropylene corrugated riser is available in a range of lengths to accommodate installation depths up to 6m. The DN600 riser is light grey in colour. |
| SBR (Styrene-Butadiene Rubber) seals | SBR seals are used for a high-performance leak-tight unit |
| Cover arrangements | Cover arrangements suitable for both trafficable conditions (Class D) and non-trafficable conditions (Class B) are available for different installation requirements (Cap and Lid arrangement or 'Top Hat' Frame) |
| Riser inflow connection | Riser inflow connection consists of a prefabricated Riser Junction with spigot off-take. A standard PVC DWV RRJ coupling and level invert taper (LIT) provides an effective joint with the PP spigot off-take. |
Iplex EZIpit® 600 Sewer Maintencance Chamber MC Product Overview
EziPit® 1000 Sewer Maintenance Hole
| DN1000 Polypropylene Base | DN1000 polypropylene base with adjustable rubber ring joint sockets compatible with smooth wall DWV PVC-U pipes manufactured to AS/NZS 1260. The pre-benched EziPit® 1000 bases are available with 6 different flow profiles allowing a change in direction and side inflow connections. The standard profiles are 30°, 60°, 90°, straight through (180°) and double sweep junction profile for DN150, DN225, DN300* DWV pipe (*subject to availability). |
| DN1000 Polypropylene Corrugated Riser | The DN1000 Riser is available in 1.2m, 2.4m, 3.6m and 6m with plain ends which can be cut off to adjust the height of the shaft. The DN1000 corrugated riser is orange/brown in colour. |
| SBR (Styrene-Butadiene Rubber) Seals | SBR seals are used for a high-performance leak-tight unit. |
| Cover Arrangements | Cover arrangements suitable for both trafficable conditions (Class D) and non-trafficable conditions (Class B) are available for different installation requirements (Cap and Lid arrangement or 'Top Hat' Frame). |
| Riser Inflow Connection |
|
| Cone | DN1000 X DN600 Reducing Cone. Black polypropylene with grey corrugated riser. |
Iplex EZIpit® 1000 Sewer Maintenance Hole (MH) Product Overview
Design
EziPit® 425 Sewer Maintenance Shaft (MS)
EziPit® 600 Sewer Maintenance Chamber (MC)
EziPit® 1000 Sewer Maintenance Hole (MH)
Handling & Storage
Installation & Testing
Installation & Testing
EziPit® 425 Sewer Maintenance Shaft (MS)
EziPit® 600 Sewer Maintenance Chamber (MC)
EziPit® 1000 Sewer Maintenance Hole (MH)
EziPit® Testing
FAQ
Frequently Asked Questions
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