Hi, hoping someone can offer a solution!
I recently had to replace my circulating pump when the last one got very noisy (bearing noises). Since then I have very loud banging noises ( really loud!) from the CH pipes when the 2 port valves close when room stats tell them to.
I have turned the pump down to number one and noises are a little better but haven't gone completely. I have also dropped the system pressure to 1.5 bar. Am I right in assuming that the 2 port valves can easily cope with shutting and not cause the noise so it is probably over pumped?
I have watched the pressure gauge when the valves close and there is a slight fluctuation as the close, around 0.1bar flutter. The pump is identical make & size to the last one.
I recently had to replace my circulating pump when the last one got very noisy (bearing noises). Since then I have very loud banging noises ( really loud!) from the CH pipes when the 2 port valves close when room stats tell them to.
I have turned the pump down to number one and noises are a little better but haven't gone completely. I have also dropped the system pressure to 1.5 bar. Am I right in assuming that the 2 port valves can easily cope with shutting and not cause the noise so it is probably over pumped?
I have watched the pressure gauge when the valves close and there is a slight fluctuation as the close, around 0.1bar flutter. The pump is identical make & size to the last one.