I'm suffering from what i believe is a chatting check valve where the secondary return meets the primary return.
I have thermostatic valves on all radiators and have a gate valve rather than an auto bypass valve!
I have now learnt that i need to swap this out but in the mean time i would like some thoughts about the chattering.
The chattering occurs when the heating circuit has reached temperature in all rooms and the secondary return pressure drops to equal the primary return pressure which is currently governed by the quater turn gate valve.
I know this because the chattering stops when i either adjust the bypass gate valve either way or if i increase the demand of one of the radiators by turning up the thermostatic valve.
My questions are as follows:
1) I don't know if the tee joint where the secondary return meets the primary return is a swept tee or not. Assuming it's a non swept tee could turbulance at equal pressures cause the chattering and if so would a swept tee resolve the issue.
2) Would an auto bypass valve resolve this chattering.
3) Could a faulty gate valve produce rattling (athough this doesn't explain why turning a radiator up eliminated the noise)
I'm not a plumber so easy on the jargon!
Thanks
P.s Homage to diy.com
I have thermostatic valves on all radiators and have a gate valve rather than an auto bypass valve!
I have now learnt that i need to swap this out but in the mean time i would like some thoughts about the chattering.
The chattering occurs when the heating circuit has reached temperature in all rooms and the secondary return pressure drops to equal the primary return pressure which is currently governed by the quater turn gate valve.
I know this because the chattering stops when i either adjust the bypass gate valve either way or if i increase the demand of one of the radiators by turning up the thermostatic valve.
My questions are as follows:
1) I don't know if the tee joint where the secondary return meets the primary return is a swept tee or not. Assuming it's a non swept tee could turbulance at equal pressures cause the chattering and if so would a swept tee resolve the issue.
2) Would an auto bypass valve resolve this chattering.
3) Could a faulty gate valve produce rattling (athough this doesn't explain why turning a radiator up eliminated the noise)
I'm not a plumber so easy on the jargon!
Thanks
P.s Homage to diy.com