Technical Drawings & BIM Files

Key Dimensions 

Click on image to download printable PDF


hotun hiflo 100C

hotun sf 15-22

hotun hiflo sf 15-32

hotun xlsf 22-32

hotun detect

Get In Touch

Registered Address

RA Tech UK Ltd
6 Nottingham Road
Long Eaton, Nottingham, UK

T: 01332 702678



In one simple fitting, hotun solves the problem of compliantly running a PRV valve discharge from a pressurised hot water cylinder relief valve or boiler pressure relief valve to a local waste or soil pipe.

hotun combines a tundish and a non-return valve to make a dry trap tundish which acts as a visible early warning device and prevents foul odours from escaping from the waste/soil pipe.


Enquire Now