what is a #510 syphon fitting?? what to replace with

Steamhead (in transit)

that's what I meant.

Tim, when you replace those, get in touch with Gerry so he can lab-test those things. It would be interesting to see what level of throughput they have.....

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tim smith

Just wondering what a 510 Syphon fitting is and what

can you replace it with. It is leaking.. Thanks all.

Steamhead (in transit)

Can you

post a pic here?

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gerry gill

Here is a catalog page

from fulton sylphons 1922 catalog..if its the same #510 its an air vent (steam trap)..depending on your pipe size i'd replace it with a radiator trap that vents very fast..like a Monash #38 for 1/2'' or a monash #48 for 3/4''..

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Steamhead (in transit)

That unit

didn't connect to a dry return- the outlet was open. Notice in the catalog they say it does not close against water. That would not be a concern if the unit discharged to a dry return.

Any of the larger main vents should work in this situation- Hoffman #75, Gorton #1 or, for the really big jobs, Gorton #2.

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gerry gill

not sure i'm following you Frank,

a cross over trap doesn't close against water either but connects to a dry return..for that matter most radiator traps don't close against water but connect to the dry return..thats kind of the application i'm imagining in my knoggin right now..it would help if he posted a picture or gave a better description of how its employed..we may be thinking of two different applications.

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gerry gill

oh i think i got your jist now..

its not connected to anything on its outlet..is that what you mean't? yup,yup, like you say, any good air vent would then work..still would be nice to see a picture..i haven't run across that unit in real life..

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tim smith

Thanks all for the reply's. I did not see it but one of my techs

did. We will replace it with a good vent and will save it and maybe I can get it to Gerry. Again, Gerry and Frank thanks for the reply. Sorry I could not get back to my email until just now. Tim