how is "wg" defined 2

[Cthornton]

I came across the following in a specification:

"...positive internal pressure of + or - 10 inches wg"

1. What is wg?
2. How can I measure it?
3. Can it be correleated to psi or inches Hg?

thanks in advance

chad

 

[GregLocock]

Probably water gauge, which you might use to measure the pressure created by a fan, for example. In which case divide by 13.6 to get inches of mercury.

Cheers

Greg Locock

 

[fredt]

I would confirm Greg Locock's advice that it is inches water gauge IE 10"WG is the pressure that will support a column of water 10 inches high.

If you are in ISO land multiply by 0.248 to get kPa (kilopascals). IE 10"WG equals 2.48kPa.