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water hammer in central heating with expansion tank

Postby bjkempston » Fri Jan 13, 2017 9:43 pm

I have a central heating system with expansion tank. When the pump turns off there can be a lot of water hammer. To minimise this I have turned the pump to its lowest flow rate. I was wondering whether a way of dealing with this problem would be to install a Water Hammer Shock Arrestor next to the pump. I just don't know if they're designed for central heating systems or not.
Thanks for any thoughts.
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