HiFlo is all hype
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- Опубліковано 15 тра 2021
- stedlin.com
www.amazon.com/stores/STEDLIN...
I've said it before and I'll say it again.
High Flow couplers with 1/4" NPT connections are all hype.
They are fine for use with high air consumption tools that use the 3/8" NPT standard but that's not what I'm talking about here.
There are numerous couplers on the market that are not compatible with the Euro plug standard often referred to as "V style" and yet have perfectly good performance when used with 1/4" NPT air hoses and air tools.
There is virtually no gain in performance by switching to the HiFLo couplers.
I think you might want to adjust your test apparatus mate. 75% more area making only 10% more CFM is a red flag. E.G. If you are using a regulator at the compressor then that is the bottleneck. In which case your findings look plausible, because you aren’t testing the fitting, you’re testing your regulator.
If your job offered you a 10% raise would you say "No thanks, not enough" 10% is HUGE brah
High flow is better if your using air tools that need a ton of air if it’s an air gun you don’t need a high flow fittings you only need a industrial fittings or automotive fittings but for die grinders definitely high flow fittings are the best option this is my personal opinion
I think the better interpretation of the result is: "Wow, 10% more flow with just a nipple change when there's all that other restriction in the system!". The High flow drops pressure only to 104.7 (and rising) while the standard flow nipples drop pressure to 97.5 (and falling). It would be nice if the system was allow to achieve equilibrium before the camera panned away.
So even with all that other restriction, the nipple change alone is good for >8psi less pressure drop. That's significant to me. If you run shorter hoses of larger diameter, the significance of the high flow fittings only increases.
Air plumbing has no magic bullets. It's the death of a thousand cuts, so building a low restriction system means looking at every part of it-- not just a fitting or coupler. I consider the system shown to have excessive restriction with other nipple because some smaller compressors have cut in pressures under 125psi. So if you have a regulator that maxes out at 125 (like my Milton does) then the compressor won't cut in until you are below your regulated pressure value, which defeats the regulator. Thus, the advantage of the low restriction plumbing is that you can run a lower regulator pressure (static) for any dynamic pressure value. And this helps assure the cut in pressure on the compressor will always be above regulated and you'll never fall off the regulator.
10% flow is about 10% power
My air impact will not run with standard I/M 1/4" plugs. Only with v style or t automotive style. The standards also restrict my iwata hvlp lph400 but not my conventional w400. Too much pressure drop especially when using a cheater valve. The cheater combined with I/M plugs really cause a restriction. When painting I like to set the wall regulator as low as possible to maintain around 35psi at the gun so I don't get fluctuation when the tank pressure is around cut in. If I use standard fittings and 90psi at the wall, I don't get enough pressure to my hvlp. With standards and my conventional, I can set the wall at 50-60psi and maintain pressure
Are there any tests on pressure drop and CFM difference between your full flow plugs and QuietPlugs? I work at a shop that primarily uses low air capacity, but high flow tools like impact wrenches, die grinders, cut-off grinders, and air hammers. I understand the better option would be the full flow plug for these types of tools, but the QuietPlug is something that we were looking at because of the noise reduction. There are also a lot of veterans at my shop that say the loud pop of air tools disconnecting always triggers their tinnitus, even though the louder sound of the tools themselves during use doesn't. I went and ordered a few QuietPlugs to see if it helps them with their tinnitus. Happy to report that they do, and although I haven't had any complaints yet, I'd like to know if they're missing out on any power in their tools. Thank you!
Why is it my 3" cutoff wheel cuts metal faster with the milton? I do notice my air compressor turns on quicker. I run 120 psi in my tank compressor is rated at 30cfm.
Many old style non HiFlo couplers are very restrictive. Most people incorrectly assume that a flow improvement is caused by the large bore plug when in many cases it’s is because of the coupler.
How do Lincoln (L style fittings)
Flow been using them for years just wondering?
Lincoln couplers have the lowest flow capacity of any I have tested.
Hello,
I am trying to decide on new fittings for my shop.
I am wondering if the "Full Flow M-Style Male Plug" incorporates any of the sound reduction or whip reduction features.
I am also wondering what the pressure drop specs are on the "Quietplug". I couldn't find this information on your website or UA-cam videos.
Thanks
Taylor
The full flow plug is intended for tools that use air motors thus the quiet feature is not required. At 30 ft.³ per minute the QuietPlug pressure drop is virtually the same as the Full Flow.
At 40 ft.³ per minute the difference is 3 to 4 psi.
@@Stedlin Thank you for the pressure drop info! So in what situation would the QuietPlug be ideal? Mainly when connecting one hose to another hose?
@@Stedlin I was also wondering what the pressure drop spec is on the 3/8 QuietHose.
@@Taylor_in_AK I don’t know. I can test it. What flow rate?
An airplane manufacturer uses over 800 QuietPlugs to connect whip hoses to vertical drops and that was an ideal use.
If hadn't used the high flow coupler with the M plugs there would have an even bigger difference. You are not going to have one without the other.
The smaller size of a good highflow coupler will be more comfortable for the user, compared to a 3/8 industrial
You say high flow rate isn't necessary and talk about air driven tools my question or thought is that the flow rate and high flow rates aren't for the tools your talking about at all. I think it's pointed more towards tools that are flow rate hungry. Sprayers and hplv comes to mind. Thoughts anyone?
Yes exactly. I work in auto body and paint, all the spray gun makers state the importance of volume of air vs pressure. Adjusting pressure at the wall and not the gun, having 3/8 hose, hi flow fittings etc
It’s the coupler restriction more than it is the plug restriction as demonstrated here:
Milton 715 vs Stedlin Quickcoupler water flow demo
ua-cam.com/video/3niZBZ0NHzE/v-deo.html
Wow. love the real world testing and data! I thought it would've mattered more. so +10% air flow for about 200-500% more cost, lol.
If would have if he hadn't used the highflo coupler with the M fitting.
Where's the test showing your coupler with standard plug???
I don’t think I posted that one. I would need to look for it.
@@Stedlin I don't mean to be rude what's the point of posting of all these tests without ever showing a test of your product actually out performing them? I thought the whole point of your couplers was that you get better flow than hi flows with regular plugs? Am I confused? Thx
@@Steve_Just_Steve I have never stated that a Stedlin Coupler with standard industrial plug will outperform a HiFlo Coupler and HiFlo plug in terms of flow capability.
It will outperform a high flow coupler and plug in every single way except flow rate and the flow rate is equivalent when used with quarter-inch NPT air tools.
@@Stedlin okay, I apologize I misunderstood. But you have said using your coupler w/ std plug doubles the flow rate over a std coupler and std plug and has similar pressure drop to the high flows. And I'm doubting that, I'm just wondering out of the dozens of test you've shown, you've never demonstrated that. Perhaps I'm wrong and I just can't find it but I haven't seen any apples to apples comparisons of pressure drop or flow rates using your couplers. Just seems strange when you're doing all that testing not to include yours and the tests.
@@Stedlin please don't misunderstand me, I'm not saying your claims are untrue and I actually will be purchasing some of your couplers and look forward to using them. This is just my observation from watching your videos
You only assume that air is used to power air tools.. then 28-30 CFM is fine. Entirely different matter when you need compressor to purge water out of irrigation system.
Of course but why would you use 1/4” NPT couplers for that application?
@@Stedlin maybe because it is only used for this once a year and no only stationary compressors piped with larger ports.
I guess I wasted money buying them for my shop
Only for specific tools. Some tools IN FACT run better with higher flow.
Higher than what? What tools?
Shout out to flexzilla