Max Operating Pressure

[mech711]

I'm trying to size an expansion tank for a hot water system at 180 deg water.

What exactly is min. fill pressure?
How do I find max operating pressure?

is minimum operating pressure at tank equal to min fill pressure?

 

[Yorkman]

Check out this thread it runs a little long
thread403-161583 but goes into pretty good detail. Also check out the FAQ in the HVAC forum it will give you the formulas you will need. Let me know if that helps.

I'm not a real engineer, but I play one on T.V.
A.J. Gest, York Int./JCI

 

[Yorkman]

Mech711, This is the link to the FAQ you might go there first faq403-1256

I'm not a real engineer, but I play one on T.V.
A.J. Gest, York Int./JCI

 

[Cockroach]

1. Activation pressure for volumetric flow in system.

2. ANSI Class 150 application, 260 psig at 200 degrees F maximum.

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada