From the Capacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (steam, air, water) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. Select a model with the spring range that accommodates the required outlet set pressure.
Example:
Application: 200 lbs/hr of 100 PSIG Steam reduced to 30 PSIG
Model Code: O-12-N-14-B (1/2” O-Series, 10-50 PSIG spring range, NPT with Bronze Diaphragm for Steam)
** 3/4" HC is high-capacity version of standard 3/4" valve.