Press-Fit

At Trade Underfloor we offer a full range of high performance, German manufactured press-fit products for drinking water and heating installations.

✔️  Simple to install
✔️  Made to fit
✔️  Built to perform

The alpex press-fit product range for drinking water and heating installations meets the highest possible demands and provides perfectly tailored solutions for each and every installation situation.

German-manufactured by Frankische, the alpex system has been designed for safety and durability, easy installation, and utmost hygiene.

MLCP pipework and new, improved swept bends are engineered to improve flow and simplify tricky installations, offering an installer-led alternative to copper plumbing – an alternative solution that performs with maximum efficiency.

Continuous system engineering advancements allow the alpex system to deliver up to 30% better flow rate than other MLCP systems and industry-standard plumbing pipes – this is critical for low-temperature heat sources like heat pumps, helping to optimise heat transfer.

Press-Fit Drinking Water & Heating Products
alpex press fit range - Trade Underfloor
alpex press fit range 1 - Trade Underfloor

Download alpex Press-Fit Price List

alpex alpex L 2026 Price Catalogue Final 1 - Trade Underfloor
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About the alpex Press-Fit System

alpex Multi-Layer Composite Pipe

alpex MLCP is a superior, high-performing alternative to copper. Engineered for excellent corrosion resistance and hygiene through the use of PPSU plastic and lead-free brass. the system gives you reliable, long-lasting performance.

Crucially, it delivers up to 30% better flow rates than other systems, a must for low-temp heat sources like heat pumps.

When compared with copper, alpex MLCP provides superior corrosion resistance, ensuring performance and reliability, especially in areas with aggressive water quality.

Benefits include:
– Good compatibility with other materials
– High chemical resistance
– 100% impermeable to oxygen

– Low thermal linear expansion, comparable with copper
– Impervious to encrustation and sediment

The pipe benefits from a 10-year insurance-backed guarantee, with a 25-year replacement-only extension.

alpex Press Fittings

alpex flow-optimised fittings provide plumbing and heating installers with a solution for every installation situation, focussing on the small details that make a big difference.

alpex fittings feature leak-before-press functions, large inspection holes and clear press marking to reduce installation risk and flag errors early. This is the know-how that has your back, ensuring the quality and safety of every install, every time.

The system uses lead-free and dezincification-resistant materials such as silicon bronze and PPSU, offering additional safety even at 95 °C. The F and TH contours ensure easy identification and no calibration is required thanks to the protection feature for the O-rings.

The new alpex ‘swept bend’ is particularly remarkable for its flow-optimised design. Manufacturing optimisations like this, in addition to the extended range of fittings, allow the alpex system to achieve a total pressure loss that is up to 15% lower

All system components are available in dimensions between 16 and 32 mm and ensure easy, secure and future-proof installation (the alpex L range caters for larger dimensions of 40-75mm).

alpex Tools

At Trade Underfloor we supply a full range of high-quality tools and tooling components to enable proper installation of alpex systems.

To learn more about alpex press-fit or place an order, please call us on 01283 850040 or speak to your account manager.