The case of the banging steam pipes, this week's case

RayWohlfarth

In this case, I was called because they were having pipes banging. Inside the boiler room was a cast iron sectional boiler with three zone valves. The zone valves were connected to a thermostat in each zone. The valves had an end switch which would enable the boiler. The banging only occurred when one zone was started. The installer had a steam trap so no water would lay against the seat. I will reveal what I found on Friday morning.

neilc

the strainer is clogged

RayWohlfarth

@neilc You were close It was the steam trap clogged here is the link for this weeks video
https://youtube.com/watch?v=dQaG6RLZ8wk