air scoop

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air scoop
Author: amishman (MD) I just bought an air scoop. I understand the half in hole in bottom is for expansion tank aND the one eighth hole on top is for air removal float. It also has a three quarter inch pipe female threaded hole in top. Can the top hole be used to supply boiler feed water? It is a taco 1-1/2 inch. Thanks Bruce
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Re: air scoop

Author: Paul48 (CT)

Pay close attention to the piping restrictions in the instructions. If you don't maintain those it's useless. A Spiro-vent does not have those piping restrictions. The additional tapping on the top is for use with a plain steel expansion tank. You come out of the bottom of the scoop and tee off for the boiler feed water, and hang the expansion tank off the bottom of the tee.

Edited 2 times.

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Re: air scoop
Author: packy (MA) this goes into the 1/2 tapping on the bottom. the diagram shows a spirovent but an air scoop does a similar job. plug the top 3/4 hole. make sure to have a long nipple leading into the scoop so the air can rise to the top. 12 inches long is good. [www.webstonevalves.com]
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Re: air scoop
Author: amishman (MD) Thanks Packy for the info.
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