Infrastructure connectors and fittings consist of factory-made precast concrete and reinforced concrete complementary elements that support the uninterrupted, watertight, level-matched and safe operation of pipe and chamber systems on site. This product group covers connectors that meet geometric requirements in pipelines, such as jointing, the junction of two lines and changes of route direction; level adjustment and top closure elements for chamber and manhole systems; and load-bearing details that govern load transfer around openings. With these complementary elements, the on-site performance of the main product groups is managed in a more controlled way as part of an integrated system.
Typical Areas of Use
- Pipe joints and changes of direction in sewer, storm water and industrial wastewater lines
- Junctions of main lines with branch and property connection lines
- Bringing covers to the required level in inspection manholes, property connection chambers and storm water gully chambers
- Support and top closure details at manhole and chamber openings
- Closed-arrangement applications on U-channel and box culvert lines
Key Advantages
- Compatible system configuration: Provides connection and complementary details manufactured in standard dimensions to work together with different pipe and chamber products.
- Less fabrication on site: By reducing the need for breaking, cutting, in-situ formwork and casting, it makes the installation process more orderly.
- Controlled production: As dimensional and geometric control takes place under factory conditions, it reduces the likelihood of assembly errors and speeds up installation.
- Level matching and ease of top closure: By resolving level adjustment and top closure details within the system rather than through one-off solutions, it adapts more flexibly to site conditions.
- Details that complement performance: Supports the on-site performance of pipes, chambers, manholes and drainage elements through complementary parts.
Subcategories
Concrete and Reinforced Concrete Pipe Couplings
These are cylindrical connection elements that join two pipe ends. With the pipes seated inside the coupling, axial continuity and joint integrity along the line are supported, and installation becomes more controlled.
- Used to ensure continuity at pipe joints in sewer and storm water drainage lines.
- Preferred for joining pipe ends securely in industrial wastewater infrastructure and irrigation lines.
Integrated-Gasket C-Branch Connectors
These are precast connection elements used at connection zones where two lines meet or where a branch line joins the main line. The integrated gasket detail forms a controlled joint that supports watertightness at the joint zone and helps to reduce the need for additional sealing work during installation.
- At junctions between the main line and property connection or branch lines, the integrated gasket detail is intended to support watertightness at the joint.
- At collectors and at connection zones where two lines meet, the integrated gasket detail helps to achieve a more controlled seal.
C-Branch Connectors
These are precast connection elements used at points where two lines must be joined or a branch line must join the main line. By providing a junction arrangement suited to the project geometry, they reduce the need for breaking, cutting and in-situ shaping on site.
- Used as a standard junction solution at connection points where a branch line joins the main line.
- Preferred in infrastructure works that require adjustment of the line route.
Bends
These are fittings manufactured to specific angles for points in pipelines where a change of direction is required in plan or in the vertical plane. They direct the flow at the required angle and reduce the need for cutting or breaking pipes on site to form an angle.
- Used to form turns in the line route that require an angle in plan or in the vertical plane, in accordance with the project.
- Preferred when connecting to existing lines, or at chamber and manhole inlets and outlets where directional alignment is required.
Raising Elements for Inspection Manhole Products
These are modular level-adjustment elements used in inspection manhole systems to match the cover level to the design level. Their placement is determined according to the installation detail of the top unit and the cover frame.
- Used in inspection manholes to make up the cover level to the design level.
- Helps to provide, in a controlled manner, the seating height and installation tolerances required for the cover frame to sit correctly.
Raising Elements for Property Connection Chamber Products
These are modular raising elements that help to set the cover level of building connection points in property connection chambers at the target level. They offer a suitable solution for installations located within private property.
- Used in property connection chambers to adjust the cover level to the design level.
- Preferred for proper seating of the cover frame and for tolerance control.
Raising Elements for Storm Water Gully Chamber and PTT Manhole Products
These are complementary elements that provide a transition, in line with the design level, between the body and the top closure in storm water gully chambers and PTT manholes. They help installation tolerances to be managed in a more controlled way.
- Used to bring the top level of the gully chamber into line with the road or site level.
- Helps the grating frame to sit properly and securely.
Lintels
These are beam-type elements that transfer the loads above an opening to their supports. Cross-section, reinforcement and support details are designed in conjunction with the pavement loads and bearing surfaces.
- Used at manhole and chamber openings to create a support and load transfer arrangement suited to the project.
- Local load effects at the support zones are taken into account in the design.
Cover Elements for Inspection Manhole Products
These are concrete and reinforced concrete cover solutions used for top closure and access safety at inspection manhole openings. In use, the aim is proper cover seating and compatibility with the pavement.
- Used to complete the top closure of inspection manholes and to ensure access safety.
- The cover installation is designed to suit the site level and pavement conditions.
Cover Elements for Property Connection Chamber Products
These are concrete and reinforced concrete cover elements used at property connection chamber openings to complete the top closure and create a safe top surface. They provide a standard solution at building connection points.
- Used to complete the top closure of property connection chambers and to ensure access safety.
- Helps to create an orderly and safe top surface at building connection points through standard cover installations.
Cover Elements for Storm Water Gully Chamber and PTT Manhole Products
These are elements used in storm water gully chamber and PTT manhole applications where the top closure is required to be formed with a concrete or reinforced concrete cover. They aim to create a safe and orderly closure detail suited to pavement conditions.
- Used in cover solutions intended to provide top closure and access safety details.
- Allows a closed arrangement to be created with concrete or reinforced concrete cover options compatible with the pavement.
Cover Elements for Box Culvert Products
These are reinforced concrete elements considered for top closure in special applications where the box culvert is used vertically. In this arrangement, the cross-section, reinforcement, joints and watertightness are assessed separately.
- Completes the top closure in systems designed for vertical installation.
- In liquid-retaining spaces, the watertightness details of the base and joints are resolved separately.
Cover Elements for U-Channel Products
These are concrete and reinforced concrete cover elements used in applications where a closed arrangement is required on U-channel lines. They contribute to creating a safe top surface along the line and to resolving the closure in an orderly way.
- Used to create a closed arrangement in applications where top closure of U-channel lines is required.
- On routes where a closed arrangement is preferred for the channel line, it helps to achieve a safe top surface with a concrete or reinforced concrete cover.