Sylphon Steam Regulator #300?

Joe_29

Made by Fulton boiler corp. One pipe system, device is located within boiler jacket(Richmond Boiler)& is leaking steam @ plunger. One side has a counter-weight, opposite end is handle when pulled down releases more steam @ plunger. Kind of looks like a primitive relief valve. It's a 1" device installed on a reduced 3" supply tapping with no outlet piping. Seen plenty of direct return traps, alt. receivers, diff. loopes, but this one has me puzzled?

Steamhead

It's probably an old damper regulator

that boiler probably was coal-fired originally, and that unit closed the dampers to slow the fire when the steam pressure rose.

You should be able to simply remove this unit and cap the pipe it's on. There's a safety valve in another location on the boiler, right? If not, install one in place of the Sylphon instead of capping the pipe.

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Joe_29

Yes, there is a safety valve on the boiler.

Thanks for your help Steamhead, it must have been coal at one time both dry returns were drilled and tapped for main vents. Probably done at conversion.