radiator fittings

retired17

so I am soldering some tees from the boiler to the radiator pipes. the tees they sent me are wrong. should have been 1 1/4 x 1 1/4 x 3/4, instead they sent 1 1/4 x 3/4 x 1 1/4.

if I use the 1 1/4 x 3/4 x 1 1/4 and have the back end of the tee to the radiator, will it make any differance in the pressure?

thank you

Gary

mattmia2

can you draw it or at least use words like branch and run? in hot water it usually doesn't make a lot of difference unless you are pushing the flow limits or are right near a circulator or a few other controls.

retired17

going from the boiler through the pump about 6 feet toward a radiator branch.

mattmia2

you could put it at the corner so the tee acts as the ell at the corner

or you could do this with an offset

PC7060

https://forum.heatinghelp.com/discussion/comment/1851797#Comment_1851797

where did you by the part? Supply house will ship out replacement same day if their error. Otherwise Matt’s suggestion of placement at border is good one.

EBEBRATT-Ed

If your putting in a bunch of tees your going to have more resistance using the tees you bought. Flow through a tee at 90 degrees is more resistance than a 90 degree elbow of the same size as it is a sharper turn. Will it make a difference? For 1 or two tees probably not for a bunch of them it could.

You have to name the tees correctly. If the main runs straight through the tee and the branch going to the rad the tee is a 1 1/4 x 1 1/4 x 3/4 tee although some refer to it as a 1 1/4 x 3/4 tee.

The tees they sent you are 1 1/4 x 3/4 x 1 1/4

You name the run connections first starting with the largest pipe size and name the branch last

retired17

thank you for your comments they were helpful