answersLogoWhite

0

Is their a way to convert cfh to psi?

Updated: 8/10/2023
User Avatar

Wiki User

11y ago

Best Answer

No: CFM is Cubic Feet per Minute, which is a flow rate (volume/time). PSI is Pounds per Square Inch, which is a pressure measurement (force/area).

However, for certain situations with known substances moving in a known piping, there may be tables available which at a certain pressure, the the substance will move through the pipe at a certain rate. These would be very specific situations and not a general conversion, though.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

11y ago

A short answer is this is like converting apples to Oranges! They measure different things! However having made literally thousands of tests of pressure and flow for MIG welding when inventing our patented Gas Saver System this may help define the difference. It takes about 3 to 8 psi in the gas hose attached to the welder/wire feeder to flow 30 to 35 CFH! However, it will vary while welding as the small gas hose in the MIG gun cable is bent, as spatter builds in the gun nozzle and for other reasons! That is why all proper regulator/flowmeters or regulator/flowgaugues (those with 2 gauges, one calibrated in CFH) operate above 25 psi. It is called choked flow. The needle valve or very small orifice (typically 0.025 inches)in a regulator/flowgauge operates above 25 psi to achieve what is called "automatic flow compensation." The folks developing MIG and TIG in the 1950's knew about flow variations and used this flow control approach. It relies on the fact that gas flow in a small hole or needle valve cannot exceed the speed of sound. That is why you see lightening before you hear the thunder!

Use the proper regulator/flowmeter or regulator/flowgauge. If you want to improve, your weld starts and reduce gas waste and surge, see www.NetWelding.com. Unlike low-pressure devices some have tried and found vary gas flow our simple inexpensive system maintains "automatic flow compensation." Sorry for the long answer!

This answer is:
User Avatar

User Avatar

Wiki User

15y ago

You can't convert directly. CFM is cubic feet per minute, a measure of flowrate. PSI is pounds per square inch, a measure of pressure.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

No. CFH is a capacity rating of pipe (natural gas), representing Cubic Feet per Hour. PSI is a pressure unit: Pounds(force) per Square Inch. The pressure will affect how fast the gas flows.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Is their a way to convert cfh to psi?
Write your answer...
Submit
Still have questions?
magnify glass
imp