JOINING METHODS
Custom joining technologies for a complete range of connections
For a homogenous, watertight network and a reliable pipe system, several types of connections are available, including plain end, bell spigot with gasket, gasket bell, flange, and electro-fused joints.
Electrofusion
Our unique electrofusion joining technology ensures watertight and permanent joints, as the whole piping system becomes a seamless unit.
- 125 mm nesting interlocking
- High-strength bell
- Electrofusion wire protected by a plastic film and integrated into the pipe walls prior to shipping
- Waterproofing up to 30 psi (higher value upon request)
Bell and spigot
- Watertight gasket
- Redundant gaskets to ensure a watertight seal
- Double or single gasket
- 5” (125 mm) spigot insertion depth
- Waterproofing up to 15psi
- Soil-tight gasket
- Cost-efficient joint for when watertightness is not needed
Heat (butt) fusion
The pipes and fittings are jointed with the help of a butt welding machine featuring a heating element. The ends of the pipes and fittings are butt-welded.
- Very high-performance joint
- Often used for pressure applications
Flange connection
The ends of the pipes and fittings are jointed with the help of a steel flange and a rubber gasket. Depending on the type of pipe, the flange adapters are completely manufactured with the pipe, or the flanges are available as a separate fitting. This kind of jointing method is mostly used for open-sea discharge applications and for tank connections. The greatest advantage of this connection is the facility of disjointing the pipe.