04:28AM | 11/08/13
Member Since: 11/08/13
1 lifetime posts
I live in a building that was built circa the late 1930s. All the radiators in the building are cast iron radiators from ARCO (which I'm guessing is The American Radiator Company).

I'm tired of having to call up my apartment maintenance staff to bleed my radiators since there's air in the pipes, and none of the screwdrivers, etc. that I have work to turn the bleed valve.

The bleed valve itself has about a 1/4" diameter.

Where can I get an appropriately-sized key for this type of radiator?

Here are some pics for reference:


02:24PM | 11/09/13
Member Since: 01/24/06
1625 lifetime posts
Most decent plumbing supplies have these keys in stock

Normally when I service a hydronic system with CI Rasds I leave a key at the job site


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