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Radiator valve

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Neild5
Neild5 Member Posts: 167
On a one pipe steam radiator system I understand the concept of either full open or closed, and why it is not recommended to shut the valve because steam may be able to get past the seal since they will end up looking like this. So what is the advantage over just using a 90 and a union?

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  • RomanGK_26986764589
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    I was wondering that too...
  • gerry gill
    gerry gill Member Posts: 3,078
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    well, if you replace the washer, you can turn off the radiator.
    otherwise, there is no difference.
    gwgillplumbingandheating.com
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • Abracadabra
    Abracadabra Member Posts: 1,948
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    Neild5 said:

    On a one pipe steam radiator system I understand the concept of either full open or closed, and why it is not recommended to shut the valve because steam may be able to get past the seal since they will end up looking like this. So what is the advantage over just using a 90 and a union?

    The advantage with a valve is that you can leave the heat running while removing a radiator for repair/painting/etc..