Joining without welding
Multigebo: joining, repairing, transitioning multilayer pipes of different makes
The multilayer pipe in the wall is twenty years old, the print is gone, and the matching press system no longer exists – or the press jaw is missing. Multigebo is built for exactly this situation: a brass compression fitting that holds multilayer pipes to DIN 16836 and EN ISO 21003 regardless of manufacturer. Outside one body per outside diameter, inside a support sleeve matching the measured inside diameter, between them a grip ring. Mounted with standard tools; depending on size the pipe ends need a gap of about 90 to 105 mm (installation instructions), without further chiselling.
- Pipe
- Multilayer pipe DIN 16836 / EN ISO 21003 type M · 16 and 20 mm also PE-Xc, PE-RT (type P), PE-X (EN ISO 15875)
- Sizes
- 14 · 16 · 17 · 20 · 25/26 · 32 mm
- Versions
- with length adjustment (repair, joint) · with male thread 1/2 to 1 1/4 inch (transition, reduction)
- Material
- Lead-free brass (German UBA metal evaluation basis) · EPDM seal (DVGW, UBA elastomer guideline) · series 320
The modular system: body, support sleeve, grip ring, gauge
Multilayer pipes of the same outside diameter have different wall thicknesses depending on the make – a 16 mm pipe can be 11.5 or 12 mm inside. That is why Multigebo is a kit: the body fits the outside diameter, the support sleeves cover the inside diameters (at 20 mm four of them from 14.4 to 16.0 mm), the gauge tells which of them belongs in the pipe, and the grip ring closes the joint. That way a pipe can be joined whose manufacturer nobody knows any more. The version with length adjustment slides onto the pipe without either end having to be pushed in – that is the repair in the existing installation and the joint between two different multilayer pipes. The version with male thread to EN 10226-1 (1/2 to 1 1/4 inch) is the transition to fitting, valve or another system and the reduction or extension.
| Solution | Pipe | Outside diameter | What it does |
|---|---|---|---|
| Universal fittings for multilayer pipe (Multigebo) Gebo · 320 | multilayer composite pipe of various makes (DIN 16836, EN ISO 21003 type M) – 16 and 20 mm also PE-Xc/PE-RT type P and PE-X | 14–32 mm | Universal compression fitting: one body per outside diameter, support bodies per inside diameter (gauge in the kit). With length compensation (repair without pulling the pipe) or male thread (transition, reduction). Drinking water cold 20 °C / 10 bar, warm 70 °C / 6 bar, heating 70 °C / 6 bar, short-term 95 °C. Standard tools. |
Service limits
Multigebo is released for permanent use and tested with a temperature-cycling test. The multilayer pipe sets the limits: drinking water cold 20 °C at 10 bar, drinking water warm and heating water 70 °C at 6 bar, short-term 95 °C. Multigebo is not approved for gas, oils or compressed air.
| Solution | Medium | max. °C | max. bar | Condition |
|---|---|---|---|---|
| Universal fittings for multilayer pipe (Multigebo) Gebo 320 | drinking water, cold | 20 | 10 | – |
| Universal fittings for multilayer pipe (Multigebo) Gebo 320 | drinking water, warm | 70 | 6 | short-term up to 95 °C |
| Universal fittings for multilayer pipe (Multigebo) Gebo 320 | heating water | 70 | 6 | – |
Manufacturer data; the installation instructions of series 320 apply.
Installation in wall and floor: permitted, with corrosion protection of the joint and expansion allowance per the pipe manufacturer’s laying guidelines. Multigebo needs no maintenance – but a record of where it sits.
Measuring correctly: outside and inside
Two dimensions decide: the outside diameter with the calliper (16, 20, 26 …) and the inside diameter with the gauge from the kit – the gauge that matches the inside diameter names the support sleeve. Cut the pipe end square, chamfer inside and outside, burr-free; calibrate if oval; fit support sleeve, union nut and grip ring in the order of the installation instructions (grease-free lubricant) and tighten the body. At 25/26 mm two outside diameters lie in one kit (two grip rings), at 16 and 20 mm the fitting also fits many PE-X pipes. Rule of thumb FR-17.
What we stock
The kits 16 × 16 and 20 × 20 mm with length adjustment, 16 × 1/2 inch and 20 × 3/4 inch with male thread and the repair case for 16 and 20 mm are stock items; 14, 17, 25/26 and 32 mm we procure. For the transition to press systems in existing installations see multilayer and push-fit systems.
| Type | Family | Sizes (stocked in bold) |
|---|---|---|
| Multigebo kit (LA = length adjustment, AG = male thread) Gebo | Universal fittings for multilayer pipe (Multigebo) | 16 × 1/2"" AG, 16 × 16 LA, 20 × 20 LA, 20 × 3/4"" AG |
| Multigebo repair case Gebo | Universal fittings for multilayer pipe (Multigebo) | 16 + 20 mm |
Further in the topic
In the topic: Joining without welding – the entry page · Repair bands: short-term also on multilayer pipe · Compression fittings for PE, PP, PVC-C · Tool: which solution fits?
From the knowledge base: Multilayer and push-fit systems: Mepla, FlowFit, iFIT, Uponor · Mixed installation and corrosion · Press system finder · Measure the outside diameter, do not guess the nominal size
Pipe from one system, fitting from another? Which third-party pipes a manufacturer releases for its transition fittings, how to change from metal to plastic and what mixed installation means in fire protection – the system transition page sets out the manufacturer data. System transition: pipe and fitting from different systems
Frequently asked questions
Which pipes is Multigebo approved for?
For multilayer composite pipes to DIN 16836 and EN ISO 21003 type M in 14 to 32 mm; in 16 and 20 mm also for many PE-Xc and PE-RT pipes (type P) and PE-X to EN ISO 15875. The manufacturer names no pipe brands – that is the point.
May I install Multigebo in the wall?
Yes, with corrosion protection and expansion allowance per the laying guidelines; the joint is maintenance-free.
How hot may the water be?
Drinking water warm and heating water up to 70 °C at 6 bar, short-term up to 95 °C; cold water 20 °C at 10 bar.
Does Multigebo replace the press system?
For repair and transition in existing installations yes. For new installations the pipe manufacturer’s press system remains first choice – there fitting and pipe come from one hand.
Do I need a press tool?
No – standard tools are enough. That is the difference from all press fittings for multilayer pipe.
Leaking pipe, extending a line, joining two systems?
Send us what you have – pipe type, measured outside diameter, medium, drawing. We tell you which solution fits from stock and what is procured.
Send an inquiryYour inquiry to Zickwolff
Send us what you have – designation, standard, quantity, date. We will clarify the rest with you.
One item or a question
Send inquiry
Not in stock? We procure it – single items too.
Designation, standard and quantity are enough.
Several items
Send bill of materials
200 items? One parts list is enough – we deliver complete.
Attach it as a file.
Helpful if already known: project and country, date needed, certificates, packaging and language of the packing lists. If anything is missing, we will ask.
It is urgent
Request express
When do you need it? Express delivery, to the site if required.
Tell us by when you need the material – we will tell you what is possible.
As of 2026-10-03. Manufacturer data from the Gebo sub-catalogues 2026 (gebooriginal, gebounifix, multigebo, minigebo, polygebo), the Gebo general catalogue 2026/27 and the Gebo product data (gebo.group), the GF PRIMOFIT technical catalogue (2025) and the GF WAGA MULTI/JOINT 3000 Plus technical manual – evidence class H (authorised distributor). Service limits are manufacturer data; the installation instructions of the respective series prevail. Availability per our article master (as of 2026-09-04), without quantities. No installation instructions, no legal advice – gas installations belong in the hands of the licensed installer.