One Pipe Steam - Radiators spitting water...lots of it

Jim Bach

One pipe steam system, radiators on the lower level are shooting water out of the air valves. It's like a bad water fountain.

Here's what I've noticed.

1.) No installation on the condensate lines or the main steam pipes.

2.) The air vents are ok, the radiators do warm after the initial knocking and beating.

3.) I can hear the air coming out.

4.) Some of the radiators pant.

5.) The water level itself is ok on the boiler.

Here's my attack plan.

1.) Insulate the pipes.
2.) Swap out the main line air vents with bigger ones.

What else do I look at? At what point do I call someone?

Unknown

Show us a picture

Maybe a half a dozen. Show the ends of the radiators where the valves and vents are. Show us the boiler piping from lot's of angles.

We won't be shy.

Noel

Dave_12

SUGGESTION

MAKE SURE THAT THE STEAM PRESSURE IS LOW, BETWEEN 0.5 PSI AND 1.5 PSI. YOU MAY BE OPERATING AT TOO HIGH A STEAM PRESSURE AND BACKING WATER UP TO THE LOWER FLOORS.

Steamhead

Also

see that the radiator shutoff valves are completely open. If partially closed, water can back up in the radiators, which will cause spitting.

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check

Steam Problems? here on the wall for 1 pipe steam...

Also, make sure piping and rads are pitched back to supply.

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