Forum / THE MAIN WALL / How many inches of water column in 1 psi of gas pressure?

## How many inches of water column in 1 psi of gas pressure? (6 Posts)

• ### How many inches of water column in 1 psi of gas pressure?

I know I should know the answer, Thanks in advance. I know someone here will have the answer in a short time.

27.4 IIRC
• ### 27.72 inches

Gas pressure (natural gas) is measured in water column pressure so it really is a WC (WG) issue. 2.31 feet per PSI x 12 inches per foot =27.72 inches
• Thanks guys, 28 was what I was thinking, but for some reason 16 was entering into the brain. I knew I could count on the wall to help. Wayne
• ### conversions

I have found onlineconversion.com to be a terrific tool.
• ### I Love that Number!

When we do gas systems at the college, I teach them about the 27.7 IWC per psi and then we convert it to feet by dividing by 12 to get 2.31. This number is, magically, the number of feet of head (rise) you get per pound of pressure differential across a pump. Very useful stuff....
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