Gerpex Multilayer Composite Pipe (Insulated)

WRAS approved, 5 layer pipe constructed using PE-Xb-AL-PE-Xb. Available in coils up to 32mm. Insulation thickness 6mm up to 20mm pipe and 9mm insulation thickness for sizes 20, 26 and 32mm pipe. Maximum operating pressure 10 bar, maximum operating temperature 95oC.

Email us 01993 824900

Technical Data

Please refer to the Emmeti Price List or information on the ‘Downloads’ section below or contact the office on 01993 824900 for technical details.

Downloads

Information

Emmeti Hot and Cold Plumbing Manifolds Sales Brochure

Product and system guide with selector tables, range information and case studies for Hot and Cold Manifold applications

Emmeti Wall Hung Radiator Manifolds Sales Brochure

Product and system guide with selector tables, range information and examples for wall hung radiator manifold applications

Technical


Gerpex Technical Brochure 2021

Gerpex Installation Guide

GERPEX MultiLayer Composite Pipe & Press Fit System Installation Guide

FAQS

I can see that TH profiles are WRAS approved with Gerpex Press Fittings. Can I use other jaw profiles?
Gerpex Press Fittings are WRAS approved when use in conjunction with TH profile pressing jaws. However the fittings are fully compatible with B profile up to 32mm and U, H & F up to 20mm sizes. B, U, H & F profiles don’t have the WRAS approval with Gerpex Press Fittings so please check potable water requirements for the project with the architect, project manager, etc as appropriate before using these jaw profiles.

Does Gerpex Multi-layer Composite Pipe need metal tracer tapes as per the NHBC requirements for metal detection?
No, the aluminium core within the Gerpex pipe can be picked up with a metal pipe detector.

I see that Gerpex Multi-layer Composite Pipe has a butt welded aluminium core, is this better than products with lapped joints?
The butt welded aluminium core ensures a consistent pipe diameter and a more circular pipe cross section allowing water to travel with less resistance providing a benefit.

Can I connect Gerpex Multi-layer Composite Pipe directly to a boiler?
Most boiler manufactures require a minimum length of a metal pipe before allowing connection to MLCP. Please check with the boiler manufacturer’s instructions before considering any connections directly to the boiler. At Emmeti we have developed MLCP to copper fittings for ease of connection.

Can I use Gerpex Multi-layer Composite Pipe for underfloor heating loops?
Yes it’s perfectly possible to use 16mm Gerpex for example in UFH applications. However, at Emmeti we also offer two other pipe products specifically for UFH (Alpert MLCP and PE-Xa barrier pipe). Both of these products may provide a more cost effective solution for this particular application.