I have found specifications for valves (internal) where the Cv value of the valve is specified and the valve is almost exclusively used for gas application (dry Nitrogen).

In looking at diaphragm expansion tanks for a hydronic chilled water system (glycol), the standard tank precharge (air side) is 12 PSIG.

Quick question regarding the Crane 410 manual and reduced port globe valves. Is there a limit to the resistance coefficient (K factor)?

Can anyone advise where the following can be located out of stock?

We have tested 3/4" 800 globe valve upto 225 kg/cm2. (The purpose was to make testing assembly that can test upto 140 kg/cm2. As we have no availibility of 1500 rating valves).