Author Topic: Orifice size difference from Propane to Natural gas (Read 1730 times)

Thorning · « **on:** October 29, 2020, 02:46:07 PM »

I have lost my chart that gives the size of the orifice for natural gas versus propane fuel. Can someone point me in the right direction ? I need help ASAP.

Blaiser · « **Reply #1 on:** October 30, 2020, 06:46:39 AM »

Oriface #54 is for PROPANE

Oriface #55 is for BUTANE

Thorning · « **Reply #2 on:** October 30, 2020, 07:37:04 AM »

What is the size of the orifice for Natural gas ?

Blaiser · « **Reply #3 on:** October 30, 2020, 08:13:48 AM »

Off the top of my head I think its 44 or 45

Blaiser · « **Reply #4 on:** October 30, 2020, 08:27:57 AM »

Thorning I was close it is actually #42

Here is a link: https://www.youtube.com/watch?v=7MC2xuQqQW0

Thorning · « **Reply #5 on:** October 30, 2020, 08:39:42 AM »

Thanks for your info. I have changed many of them usually from propane to natural gas. If I dont have the natural gas size I use a propane size item and drill it out to the #42 size. The closest size is 3/32 which is.093" dia for natural gas as compared to .055" dia for propane according to my old info.

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