Today's Message Index:
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1. 12:03 AM - help in assignment writing (jamesstephens)
2. 06:11 AM - Re: How to seal Tygon tube to barb fittings (Steve Stearns)
3. 06:13 AM - Re: How to seal Tygon tube to barb fittings (Steve Stearns)
4. 06:24 AM - Re: Re: How to seal Tygon tube to barb fittings (Robert L. Nuckolls, III)
Message 1
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| Subject: | help in assignment writing |
For the best [url=https://www.irelandassignmenthelp.com/]help in assignment writing[url] services in Ireland hire the experts of Ireland Assignment Help Our Writers are fluent in completing Assignment work on time for all students.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501542#501542
Message 2
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| Subject: | Re: How to seal Tygon tube to barb fittings |
> rparigor@hotmail.com>
>
> Hi Group. I have a mix of instruments that use various Barb fittings. Some
> 1 barb, some 2 and some more. Anything Winter or from Germany have
gorgeous
> 2 rounded bump barbs. They don't leak at all. Some of the others with some
> poking I can get to leak. In the soaring community, if using old tubing or
> if you suspect leaking, they use a Green Latex farm animal castrating
> donut. I have some and they work great. Size is 5.5mm ID (.217") x 13.5mm
> OD (.532"). The Tygon tubing I'm using is 9/32"OD (.281") x 5/32"ID
(.156")
> and depending on barb OD will grow in size. I can only use the Latex rings
> on about 1/4 of my connections because the rings are so thick (.158"). I
> would like to use dash 105 O-Rings. I tried a gazillion small clamps,
> nothing tickles my fancy. ID not right size, too much tension and point
> loading on wire clamps is 1 on bottom and 2 on top. I tried a double wrap
> of .25" safety wire, kinda OK but very fiddly to get it just right. You
> want a complete circle and it ne!
> eds to go between the point of the barbs so has to be very thin.
> Anyway McMaster has A70 durometer dash 105 O-Rings in Buna-N, Viton,
> Silicone, EPDM and Poly Urethane. They also have harder A90 in Poly
> Urethane.
> Any input on which compound of O-Rings might keep tension better over time
> when used as a rubber band?
> Any other ideas welcomed.
> Anyone know of a small circular spring like those used in lips of seals
> with an approx ID of less than .281"?
> Thx. Ron P.
>
I make a tourniquet using two wraps of lacing cord. Really easy and seems
to work fine.
Steve Stearns
O235 Longeze
Boulder / Longmont CO
Message 3
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| Subject: | Re: How to seal Tygon tube to barb fittings |
P.S. I do the same thing for the fuel-line on barbs on my old BMW
motorcycle.
Works there too even with the scratched up aluminum barbs.
Steve.
On Wed, Apr 28, 2021 at 7:10 AM Steve Stearns <steve@tomasara.com> wrote:
> > rparigor@hotmail.com>
> >
> > Hi Group. I have a mix of instruments that use various Barb fittings.
> Some
> > 1 barb, some 2 and some more. Anything Winter or from Germany have
> gorgeous
> > 2 rounded bump barbs. They don't leak at all. Some of the others with
> some
> > poking I can get to leak. In the soaring community, if using old tubing
> or
> > if you suspect leaking, they use a Green Latex farm animal castrating
> > donut. I have some and they work great. Size is 5.5mm ID (.217") x 13.5mm
> > OD (.532"). The Tygon tubing I'm using is 9/32"OD (.281") x 5/32"ID
> (.156")
> > and depending on barb OD will grow in size. I can only use the Latex
> rings
> > on about 1/4 of my connections because the rings are so thick (.158"). I
> > would like to use dash 105 O-Rings. I tried a gazillion small clamps,
> > nothing tickles my fancy. ID not right size, too much tension and point
> > loading on wire clamps is 1 on bottom and 2 on top. I tried a double wrap
> > of .25" safety wire, kinda OK but very fiddly to get it just right. You
> > want a complete circle and it ne!
> > eds to go between the point of the barbs so has to be very thin.
> > Anyway McMaster has A70 durometer dash 105 O-Rings in Buna-N, Viton,
> > Silicone, EPDM and Poly Urethane. They also have harder A90 in Poly
> > Urethane.
> > Any input on which compound of O-Rings might keep tension better over
> time
> > when used as a rubber band?
> > Any other ideas welcomed.
> > Anyone know of a small circular spring like those used in lips of seals
> > with an approx ID of less than .281"?
> > Thx. Ron P.
> >
>
> I make a tourniquet using two wraps of lacing cord. Really easy and seems
> to work fine.
>
> Steve Stearns
> O235 Longeze
> Boulder / Longmont CO
>
Message 4
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| Subject: | Re: How to seal Tygon tube to barb fittings |
At 08:12 AM 4/28/2021, you wrote:
>I make a tourniquet using two wraps of lacing
>cord.=C2 Really easy and seems to work fine.
>
>Steve Stearns
>O235 Longeze
>Boulder / Longmont CO
Here's a string tie technique that produces a
very secure installation:
https://tinyurl.com/ydms6p4a
Used this yesterday to refurbish the CO2 discharge
line on my DIY 'sodastream'. The old one I cut off
had been on there 5+ years and was still tight.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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