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Thread: expansion valve problem
11-22-2011, 06:56 AM #1
expansion valve problem
We have a situation with a water to water heat pump.
If the bulb of the expansion valve is stick to the pipe , after 30 sec is closing the flow and the pressure goes up (at 20 C is reaching 2.5 mpa)
If we remove it from the pipe, and is not regulating the flow, the heat pumps works perfect.
It is a thermal expansion valve from Emerson ....