When selecting a regulator for your application, proper sizing is critical. An undersized actuator will not pass the required flow, while an oversized regulator will not provide accurate regulation. Most manufacturers provide a free sizing program to aid in proper selection. Click here to go to our JVCV Sizing Program.
Certain process information is required to size a regulator:
Media: specific gravity, molecular weight, viscosity, and temperature
Media state: liquid, steam, gas
Inlet Pressure: minimum, normal, maximum and units, i.e., psig, barg, etc.
Outlet Pressure: minimum, normal, maximum and units
Flowrates: minimum, normal, maximum and units, i.e., gallons per minute, standard cubic feet per hour, etc.
Set Point: desired set point and units
This is the absolute minimum required information for sizing. The more information the manufacturer has, the better the recommendation. An ISA data sheet is ideal!