[Shop-talk] air fttings

[David Scheidt]

On Tue, Sep 2, 2008 at 12:51 PM, Matt <mbarre at juno.com> wrote:
> Thanks for all the replies.  I ultimately found that HF did in fact show some
> 3/8 fittings, you just had to be very particular in how you searched...
> Ultimately the logic of simply sticking with one in light of the minimal
> benefit of the larger fitting prevailed and I am sticking with all 1/4".
> I did learn something about the differences in fittings from all this
> though...  T, U, I/M, etc.  I didn't realize there was such variability.
> Thanks again,
> Matt
>
>

page 36 of the current Milton catalog has a nice chart, with
full-sized drawings of all those difrerent plugs
http://www.miltonindustries.com/uploads/Page_36_Milton_Catalog.pdf

When I ran a shop, one of the things we did when we hired a new wrench
was buy them a bunch of fittings for their air tools, since we used a
different plug than other shops.

Milton's fittings, by the way, are by far the best around.  That's
particularly true of their female couplers.


>
> -- "David Scheidt" <dmscheidt at gmail.com> wrote:
> On Tue, Sep 2, 2008 at 12:09 PM, Mullen, Tim <Tim.Mullen at ngc.com> wrote:
>> Matt wrote:
>>>
>>> I am also thinking about converting my 1/4" fittings to 3/8".
>>> I currently have a mix and it can be frustrating getting things
>>> matched up so I am looking to reduce one variable...
>>
>> It's always good to pick one standard and stick with it.
>>
>> The difference between air flow for 1/4 inch and 3/8 inch fittings is
>> very, very small.  If you have a lot of 1/4 inch fittings, I'd consider
>> changing the 3/8 fittings so save money.
>>
>> I went pondered this change some time back.  That's when I found a nice
>> chart that showed the pressure/flow loss for the different fittings.  At
>> typical compressor values, it isn't much difference - using a 10 foot
>> shorter hose would probably make a bigger difference in flow.  Along
>> those lines, a larger diameter air hose make much more difference than
>> the diameter of the fittings at the ends of the hose.
>>
>> I decided to just go with the normal 1/4 fittings, simply because they
>> are the most common and easiest to find.
>
> Another thing to consider is that 3/8 fittings aren't supposed be
> undone under pressure.
>
>
>
> --
> David Scheidt
> dmscheidt at gmail.com
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-- 
David Scheidt
dmscheidt at gmail.com