Chemical and mechanical durability
The joint has the same chemical and thermal resistance as the PP or PE pipe. No seal ageing, no embrittlement at the interface.
IP-PLUS® welding ring
A joint as strong as the pipe itself
Beweldo manufactures IP-PLUS welding rings that turn PP and PE socket joints into material bonds without special components, in minutes.
DN 110–2000
ring sizes for PP and PE pipes
12 bar
pressure resistance up to
−20…+90 °C
operating temperature range
< 10 min
160 mm joint incl. preparation
What the welding ring is
A ring in place of the rubber seal: the joint becomes part of the pipe
The IP-PLUS welding ring is a preformed, airtight-packed ring with a copper wire winding around its body. The ring is pressed into the socket's sealing chamber in place of the rubber seal, the pipe spigot is pushed home and the welding unit feeds the ring with a defined welding voltage.
The winding distributes heat evenly around the full circumference. The ring's controlled expansion generates the joining pressure by itself and bridges even the large dimensional tolerances of pipe systems. The result is a material bond with the same chemical and thermal resistance as the pipe.
Why a welded joint
A welded joint lasts as long as the pipe
Rubber-ring connections age, harden and fail under ground movement and chemical exposure. A welded joint behaves like the pipe itself for its entire service life.
Pressure resistant
A welded socket joint withstands pressures of up to 12 bar. Even in gravity systems this provides a safety margin against blockages and pressure surges.
Fast installation
A few work steps and a short welding cycle: a 160 mm joint is completed in under ten minutes including preparation.
No special components
The ring installs into the pipe system's own socket. No separate electrofusion couplings or adapters are needed.
Groundwater and roots
A fully welded joint does not leak into the environment and gives tree roots no path into the pipe. That is why welded joints are required in practice in groundwater zones and chemical-handling areas.
PP and PE in one line
The new IP-PLUS PEPP ring joins polyethylene to polypropylene by welding, so a new line can also connect to the infrastructure already in the ground.
Tested and certified
“The joint is as strong as the pipe.”
The IP-PLUS joint holds a German DIBT approval (a procedure equivalent to CE approval), with tightness verified under compression and bending to EN 14758-1 and EN ISO 13259 at the accredited MFPA test laboratory.
Our own testing at VTT in Finland confirms the result: a pressure test at 80 °C for 140 hours, end-supported (EN ISO 1167, type B), and burst-pressure tests at 20 °C.
The system is not new. IP-PLUS rings have been delivered to the German market for more than ten years, under Europe's strictest joint requirements.
On site
How the joint is made
The work steps are the same regardless of size. The welding unit controls voltage and time automatically, so the installer's job is preparation and assembly.
-
Clean and chamfer
The pipe end is cut square, chamfered and cleaned. The socket's sealing chamber is cleaned of loose dirt.
-
Fit the ring
The welding ring is pressed into the sealing chamber in place of the rubber seal. The ring is preformed and seats as it is.
-
Assemble the joint
The pipe spigot is pushed into the socket up to the insertion mark.
-
Weld
The welding unit is connected to the ring's terminals and the cycle is started. The unit supervises voltage and time by itself.
-
Let it cool
The joint cools unloaded for the specified time, after which the line is ready to be backfilled.
Applications
Where the IP-PLUS ring is used
Municipal networks
Underground PP and PE sewer systems whose sockets have a sealing chamber.
Hazardous liquids
Sites where a rubber seal is not enough: petrol stations, airports, industry, biogas and agriculture.
Groundwater zones
Sites where tightness in practice demands a welded joint because of environmental risk.
Electrofusion couplings
Welding of PE-HD and PP couplings with the same equipment: one unit covers the whole site.
Planning a welded pipeline?
Tell us about the project and pipe system, and we will specify the right ring sizes and equipment.