Taking the Stress Out of Pre-Insulated Heat Networks

We've been producing pre-insulated steel pipes for heat networks for over forty years in the UK. As such, we understand the importance of ensuring that a system's chosen design takes into account the sometimes high stresses caused by thermal expansion. Something as simple as adding in an unplanned branch connection can seriously impair a system’s ability to cope with the huge forces exerted on the pipe from thermal expansion.

To put it into context, a 200-metre length of DN250mm pre-insulated steel pipe, heated to the higher end of permissible operating temperatures will expand by around 150mm – exerting a stress of some 171MPa – the equivalent of 52 tonnes. That's around the weight of a 737-100 jet airliner!

We use state-of-the-art sisKMR specialist stress analysis software. This package allows us to configure the pipe routes to keep the thermal expansion within safe limits and conform to the requirements of the EN 13941 standard for Design and installation of pre-insulated bonded pipe systems for district heating.

To find out more and discuss your heat network requirements, please click below:

https://cpv.co.uk/hiline/steel