Video: Pressure reducing regulator flow curves

by Jeff Hopkins, on 1/15/13 7:00 AM

Enjoy this video on pressure reducing regulator flow curves, for more training, sign up for our next webinar on how to choose the right pressure reducing regulator for your application.

In this 2 minute video, Swagelok Field Engineer Eric Kayla talks about pressure reducing regulator flow curves and how to improve them. He is back and ready to teach you how to properly size a pressure reducing regulator.

On January 17th, in a live technical webinar, customers of Swagelok Northern California will receive a 30 minute briefing from Swagelok field engineer and regulator expert Eric Kayla. Kayla will discuss how to properly select and size a pressure reducing regulator and cover:

Understanding pressure reducing regulator flow curves
How to use a flow curve to size a pressure reducing regulator
How to size a pressure reducing regulator for different types of media

Here's a sample of what will be covered:

Manufacturers usually create gas flow curves using air or nitrogen. If the system media is a different fluid, it may be necessary to adjust the flow scale to account for the difference between the specific gravity of the actual system fluid (G actual) and that of the fluid used to create the curve (G ref). The effect of specific gravity changes the flow rate by a factor (FG):

pressure reducing regulator

where G actual is the specific gravity of your system fluid. For convenience, below is a list of specific gravity correction factors calculated with this equation to adjust a flow scale from nitrogen to several other gases.

pressure reducing regulator

For example, the correction factor for carbon dioxide is 0.80. Therefore, the point on a flow curve showing a nitrogen flow volume of 100 std ft3/min (2831 std L/min) indicates a comparable carbon dioxide flow of 80 std ft3/min (2265 std L/min). The curve is the same, but the flow scale
changes.

In a hurry or have a question? Please call our office at 510-933-6200.

Added bonus: Book a phone consultation with the presenter

Call in to book a phone consultation with Eric Kayla for Thursday, January 17th. He will be available Thursday afternoon to consult with you on your pressure regulator application. Call 510-933-6200 to make a phone appointment.