Press systems · Geberit Mepla
Geberit Mepla: the multilayer pipe press system – d16 to d75
Mepla is Geberit's multilayer composite pipe system: a pipe of PE-RT with an aluminium core that can be bent and stays in shape, pressed with fittings in PPSU, brass or gunmetal. It is the system for the floor level – drinking water and heating, from the manifold to the draw-off point – and connects to the metal systems via transitions. This page explains pipe, sizes, availability, media with their limits, tools, transitions and how it differs from FlowFit, Raxofix and iFIT.
- Pipe
- Multilayer composite pipe PE-RT/AL/PE-RT (DVGW W 542)
- Sizes
- d16–d75
- Fittings
- PPSU, brass, gunmetal
- Sealing element
- CIIR black
- Pressure / temperature
- Drinking water 10 bar / 70 °C (cold water 16 bar) · heating 10 bar / 80 °C
- Availability
- d16 and d20 from stock · d26–d75 to order
What Mepla is meant for
Drinking water and heating installation on the floor level and in the riser up to d75: loop and series pipework, radiator connections, manifolds, bathrooms in series. The composite pipe can be bent by hand or with a bending spring and keeps its shape, it is diffusion-tight thanks to the aluminium layer and lighter than metal pipe. Geberit additionally approves cooling water, fire-fighting water wet, compressed air after the technical information and inert gases – within the limits of the application table. Mepla is not meant for fuel gases, solar and high temperature; for those there are metal systems – for gas the G variants with HNBR (such as Viega Profipress G), for solar and high temperature variants with FKM (such as Viega Profipress S or SANHA NiroSan Industry).
How the joint works
Cut the pipe to length, calibrate and chamfer (so that the sealing ring is not damaged), check the insertion depth – it remains visible at the fitting –, push the fitting on and press with the Mepla press jaw or the press ring of the size. The black CIIR sealing rings seal against the pipe; the stainless steel press sleeve encloses the pipe. Unpressed Mepla joints are visibly leaking during the standard pressure test with air and water – Geberit's counterpart to the SC-Contur.
Pipe, sizes and availability
The Mepla pipe is a PE-RT/AL/PE-RT composite pipe, in straight lengths and coils, with and without insulation or conduit. The table shows the sizes; d16 and d20 – the floor-level sizes – we carry from stock, d26 to d75 we procure through Geberit.
| Size | Outside ø (mm) | DN | Availability |
|---|---|---|---|
| d 16 | 16 | 12 | in stock |
| d 20 | 20 | 15 | in stock |
| d 26 | 26 | 20 | available to order |
| d 32 | 32 | 25 | available to order |
| d 40 | 40 | 32 | available to order |
| d 50 | 50 | 40 | available to order |
| d 63 | 63 | 50 | available to order |
| d 75 | 75 | 65 | available to order |
The standard names dimensions. What is listed here, we carry – from stock or to order; how quickly something is available we clarify on request.
Which medium with which limits
After the application table of the Geberit brochure supply systems (04/2026): drinking water cold and hot 0–70 °C at 10 bar (cold water 0–20 °C up to 16 bar), malfunction temperature 95 °C for a total of 100 h; heating water 0–80 °C at 10 bar; cooling water 0–70 °C, with antifreeze −10 to +40 °C after approval; fire-fighting water wet 0–70 °C; compressed air 0–70 °C after the technical information (purity class); inert gases 40 °C.
| Medium | Mepla (CIIR) |
|---|---|
| drinking water | suitable 70 °C / 10 bar cold water 16 bar (0–20 °C) |
| heating water (closed circuit) | suitable 80 °C / 10 bar |
| cooling water | suitable 70 °C / 10 bar |
| compressed air, oil-free | with restrictions (manufacturer approval) 70 °C / 10 bar to the manufacturer’s technical information on compressed air (purity class) |
| natural gas (DVGW G 260) | not suitable |
| solar circuit | not suitable |
| cooling water with antifreeze (glycol) | with restrictions (manufacturer approval) 40 °C / 10 bar release per antifreeze product by the manufacturer |
| technical gases (nitrogen, argon, CO2) | with restrictions (manufacturer approval) 40 °C / 10 bar inert gases (e.g. nitrogen), manufacturer data |
| fire-fighting water (wet system) | suitable 70 °C / 10 bar |
Tools
Mepla is pressed with Geberit press jaws per size (d16–d40) and press rings (d50–d75) on Geberit press tools or compatible machines; for small sizes there is a hand press tool. The jaws are Mepla-specific – FlowFit and the Geberit metal systems use different ones. Which jaw belongs to which system is explained under press profiles and tools.
Transitions: FlowFit, Geberit metal systems, thread, flange
Mepla is designed for transitions: transition fittings to the Geberit metal systems (stainless steel, carbon steel, copper) with plain end, transitions to FlowFit, threaded transitions with female and male thread, transition elbows with wall plate for valve connections, MasterFix unions, loose flanges PN 6/10 with collar and press nipple. To our Viega systems the way leads via thread to EN 10226-1 or flange; in drinking water observe the flow rule (mixed installation).
Mepla, FlowFit, Raxofix or iFIT?
FlowFit is Geberit's newer multilayer system with lateral pressing technology, two jaws for all eight sizes and a press indicator – faster in tight installation positions; Mepla remains the system with the larger range and the longer track record. Viega Raxofix is the multilayer system without O-ring, 16–63 mm, to order. GF iFIT is not a press system but a push-fit system d16–d32 – tool-free, for simple, fast applications. A comparison is given on the page multilayer and push-fit systems.
Installation in brief
- Cut the pipe square, calibrate and chamfer – without chamfering the sealing ring suffers.
- Check the insertion depth (visible at the fitting), push the fitting on, press with Mepla jaw or press ring.
- Pressure test with water or air; unpressed joints leak.
- Bend with bending spring or bending tool, minimum bending radius after manufacturer statement; take up expansion via guides.
- UV protection: do not expose composite pipe permanently to daylight.
Availability at Zickwolff
The standard names dimensions. What is listed here, we carry – from stock or to order; how quickly something is available we clarify on request. We stock Mepla d16 and d20 with fittings and pipe; the sizes d26 to d75 we procure through Geberit.
Further reading
Tools of this section: system finder (which system suits medium, pipe and size) · joining methods compared (press, push-fit, grooved, welding, thread, flange, soldering) · cost comparison calculator (assembly time and downtime per method) · press systems overview.
Related multilayer and push-fit systems
| System | Pipe | Sizes | Availability |
|---|---|---|---|
| Viega Raxofix (multilayer composite pipe) | multilayer composite pipe | 16–63 mm | available to order |
| Geberit FlowFit (multilayer composite pipe, lateral press technology) | multilayer composite pipe and polybutene pipe | 16–75 mm | in stock 16–25; available to order 32–75 |
| GF iFIT (push-fit system, polybutene and multilayer pipe) | multilayer composite pipe and polybutene pipe | 16–32 mm | in stock |
| Uponor RS 63-110 (modular press and plug-in system, multilayer composite pipe) | multilayer composite pipe PE-RT/Al/PE-RT with welded aluminium layer (Uponor MLC 63-110) | 63–110 mm | available on request |
Matching items from our range: malleable iron fittings for threaded transitions, valves for isolation and control.
Frequently asked questions about Geberit Mepla
How hot may heating water be with Mepla?
Continuously 0–80 °C at 10 bar (application table 04/2026); malfunction temperature 100 °C to ISO 10508 for a total of 100 h during the service life.
Does Mepla work in drinking water at 16 bar?
Cold only: 0–20 °C up to 16 bar. Hot 0–70 °C at 10 bar.
Can I connect Mepla to Viega systems?
Not directly – via transitions with thread to EN 10226-1 or via flange. Geberit systems among themselves (FlowFit and the Geberit metal systems) have their own transition fittings.
Is Mepla approved for compressed air?
Yes, 0–70 °C at 10 bar after Geberit's technical information on compressed air (observe the purity class to ISO 8573-1) – listed as “conditionally” in the system finder.
How do I recognise a forgotten press operation?
By the pressure test: unpressed Mepla fittings are visibly leaking with air and water. Pressing afterwards is enough.
Mepla and multilayer pipe from one source
Tell us size, medium and quantity – we deliver Mepla fittings, transitions and pipe, d16 and d20 from stock, above that to order.
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.
Technical basis: Geberit brochure supply systems (04/2026, application table), Geberit product line brochure supply systems (07/2025), product pages geberit.de – distributor material, use released; DVGW W 542. Availability after Zickwolff merchandise management (09/2026). The binding approval stays with the manufacturer.