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 SCFM of 100 PSIG of Air reduced to 30 PSIG
Model Code: OHC-13-N-0005-V (3/4” HC O-Series, 30-50 PSIG spring range, NPT for Air)
** 3/4" HC is high-capacity version of standard 3/4" valve.
Note: For capacities of other gases multiply the air capacities by the following factors: Argon–0.85 CO2 –0.81 Helium–2.69 Nitrogen–1.02.