TRV installation

What are the steps to be taken when replacing closed shield valves with TRV’s?

Asked by Lawrence on 26th Jun 2025
Expert Trade Answers
Best Answer
"You would drain the heating system, remove each radiator and replace the stem going into the radiator put the radiator back on the wall installing new TRV. Make sure you add inhibitor into the system to the volume of what your water volume is and then refill the system. Turn on your boiler bleed the radiators add water as required to get the preferred pressure.."
Answered on 26th Jun 2025 - Member since Jun 2025 - report
"Drain heating system fully. Replace the valves. top up system ensuring you add inhibitor and bleed all radiators."
Answered on 26th Jun 2025 - Member since Sep 2023 - report
"Drain the heating system first , if its a system boiler then watch some videos on YouTube. It's easy to get airlock in the system ."
Answered on 26th Jun 2025 - Member since Sep 2018 - report
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