Description

Valves, such as common globe, butterfly, and ball valves, that performed satisfactorily for constant flow or variable flow primary-secondary systems generally are not satisfactory for primary-only variable flow systems because of the great variations in differential pressures across modulating control valves in direct return hydronic systems.

Citation: ASHRAE Journal, Vol. 47, No. 9

Product Details

Published:

2005

Number of Pages:

4

File Size:

1 file , 390 KB

Product Code(s):

D-26471