Radiator bleeding valve on very old radiator

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Radiator bleeding valve on very old radiator
Author: Amm1majus (NJ) Can anyone direct me as to where the radiator bleed valve is on this radiator? [postimg.cc]
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Re: Radiator bleeding valve on very old radiator
Author: bsipps (PA) Usually located in the top left or right front for those old convectors The easiest way to get to it is to take the front cover off Edited 1 times.
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Re: Radiator bleeding valve on very old radiator

Author: bernabeu (SC)

There is NO, repeat NO, bleed valve as the radiator is for one pipe steam.

The thermostatic 'bullet' about half way up vents air until it gets hot from the steam and closes.

Said radiator 'may', or may not, be capable of CONVERSION to hydronic heat.

Said 'bullets' come in varying capacities from A through (if memory serves) H, and also come in 'adjustable' versions (problematic at best).

Quote

In one-pipe steam installations, steam flows from the boiler to the radiators, where it displaces the cold air by pushing it out through a vent on the radiator. The air vent closes automatically when the radiator is full of steam. The heat energy in the steam is then transferred to the room, as this occurs the steam cools and condenses into water which pools at the bottom of the radiator. This condensate then flows back again through the same single pipe.

Due to the steam and water flowing in opposite directions through the same pipe, the diameter of this pipe is typically more than 1". So one-pipe radiators are easy to identify from the single, fairly large pipe connected to them, always at the bottom, and an air vent attached to the opposite side, typically halfway up the height of the radiator (see below).

[www.castrads.com]

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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Re: Radiator bleeding valve on very old radiator
Author: ArthurPeabody (NM) heatinghelp.com has lots of experts ready to help with this sort of question.
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Re: Radiator bleeding valve on very old radiator
Author: bsipps (PA) Bern you are correct I neglected to see the steam vent, pic quality was not so good
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Re: Radiator bleeding valve on very old radiator
Author: packy (MA) i've never seen a cast iron radiator that was made for steam only ??? is there a second 1 or 1 1/4 inch tapping on the bottom somewhere ? you obviously need two tappings for hot water where as steam can work on only one.
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Re: Radiator bleeding valve on very old radiator
Author: bernabeu (SC) THIS radiator APPEARS to be some sort of custom casting. It does not seem to be sectional. ============================================== "Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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