Air pressure regulator

Can anyone tell me if this sort of a regulator would work, from getting my 190psi tank down to 145psi.

I prefer not getting one of those big adjustable ones, I want something small like this 1/2" quick connect I can easily splice into my line.
Its a legris 7770 62 00 - 15 to 145 psi, I figured I would just max it out and run 145 to my nathan K3s

UPDATE: Nevermind, it looks like this is more of a flow restricter instead of pressure, can anyone recommend a good lightweight pressure restrcter 1/2" to 150psi?

Anything that regulates pressure is going to have a spring body internal chamber … so in terms of size I’ve never seen that much variance - especially if it has 1/2" ports.

I purchased a Norgren ages ago and have been happy with that. Certainly not a unit I would call bulky. Sorry for the crap picture but you can see relative size to the pressure relief valve and pressure switch.

You can also order them without the gauge on the body to save some bulk.

Norgren is the brand we sell and they’ve been very reliable. I can’t recall a time when any customer reported an issue with one. The same is true for the ones that combine the regulator with a coalescing filter and it’s the same size as the filter by itself.

I’ve bought two regulators recently, and both made false claims about the CFM. One claimed to be 220, and the other claimed to be 187, when in reality both only had about 50. I paid about $60 for each, and I realize now that perhaps the price speaks for itself.

Do any of you know any regulators that have at least 200 CFM that are proven? 1/2" is preferable, but I understand that might not be realistic. I wish Hornblasters had something, but I realize the regulator they sell will most certainly choke the horn I have.

I searched online and didn’t find any 200 CFM regulators.

Get in touch with Norgren. The Excelon 74G series with 1/2" ports looks like it has no trouble flowing 200+ scfm at 150psi

You can go even bigger with their 68 Olympian series and a 1" port which flows well above the 400 scfm mark!

Certainly plenty of options… get in touch with them and I’m sure you’ll end up with a regulator to suit your needs. :wink:

Thanks, I appreciate the information. I plan to use it for a K5LA, which I am aware is an air hog. I’ve heard K5LA’s need 150 CFM, so perhaps I don’t need that much CFM. Not sure though.

I should have known better and checked Norgren in the first place!

There used to be a chart floating around here that showed the air consumption of a K5.

This is the chart I was thinking of, but it’s not a lot of help.
http://www.fuelslut.net/ihost/files/123/AirchimeKSeriesChart.jpg

Once you get the part number from Norgren, Search online for the regulator.
You may find it for a whole lot less that buying directly from Norgren.

Malodave

Yea I was thinking of the same chart E2E … I’m not sure why the OP is looking for a 200 CFM unit. Those airchimes are super efficient at making noise and you don’t need massive airflow to do so. That chart clearly illustrates that. They’ve got things tapering out at just over 90 cfm in those stats.

Interesting. So the K5LA uses nearly 100 cfm at only 80 psi. Seeing how the cfm increases slower as the psi rises, I can see how 150 cfm around 150 psi sounds pretty realistic. The reason I wanted a 200 cfm regulator is because I wasn’t sure of the cfm usage of the K5LA. Now that I know that, a 150 cfm regulator sounds reasonable. Thanks.

I bought my Norgren through mc master Carr. Their part number 4959K53.
“Air Regulator with Pressure Gauge 1/2 Pipe Size, 225 Maximum scfm @ 100 PSI”
$68.62
There are several people on here that run this regulator.