Type and Size Steam trap

Big Ed_4

I am installing twin 630k Fulton boilers 120# steam system. Running a 1.25" main  40'. What type and size trap should I use on the end of the main on the drip leg ?  Thank for any info ..



Ed

Big Ed_4

No sure if posted correctly

Two 630 Futons 120# steam boilers. Running 1.25" main 40' , what type and size trap should I use on the end of the main drip leg.?Thanks again

kevinj_4

Trap

More info wioll be needed to size the trap. If you contact your Sarco or Armstrong rep they can size it. It will be about the smallest trap you can get.

joe lambert_2

Small is Correct

I like using Float & Thermostatic traps these days, they are good at removing air that you will have on start-up.  You could use a 3/4" or 1" F&T-125 trap.  Make sure you get the orifice for 125 psi steam.



I have seen some large traps on the main headers for boiler, these are there in case there is carry-over of boiler water into the steam line.  I don't usually recommend them but prefer to prevent carry-over at all costs.

kevinj_4

Tiny boilers

These must be real small to only need a 1.25" main.