Determining Nut Grades with Northeast Fasteners on NutsandBolts.com
The following video is a simple step by step guide to servicing the cartridge used in the Bristan Thermotec series. The steps will show you how to remove the cartridge from the valve body and replace the seals.
In order to service the cartridge you will need a seal kit , alternatively the cartridge (Part No: cart 06732compl) may need replacing which can be ordered from www.bristan.com.
This one piece unit comes with a ceramic disc valve and it produces excellent stabilised temperature and flow control