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Why is it important to have a steam radiator valve either open completely or shut completely?
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- ?Lv 76 years ago
It depends on what type of valve is installed. Typically a ball valve should either be all the way open or completely closed, because they wear very quickly otherwise and are not very efficient at flow control.
A globe valve is more suited to flow control and can be used in a partially open status.
See the attached for more information.
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