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Are Steam Angle Radiator Valves bi-directional?

rhodebump Member Posts: 152
edited January 2022 in Strictly Steam
I am a little embarrassed asking this question, but exploring all possibilities.

I am trying to figure out why a radiator is only partially heating up. Does it matter which direction a angle valve is installed on a radiator?

In my case, I have the radiator valve installed in a reverse fashion. The spud is connected to the steam line (coming out of floor) and the other (non-spud) end of the angle-valve is connected to the radiator.

Does it matter which way I connect a steam angle radiator valve? This is a dumb NON-TRV valve.

Thank you!