Today's Message Index:
----------------------
0. 07:25 AM - Value of the List... (Matt Dralle)
1. 01:56 AM - Re: Re: Ice prevention on fuel vent (Carlos Trigo)
2. 05:03 AM - Re: Re: Ice prevention on fuel vent (Tim Olson)
3. 05:11 AM - Re: Re: Ice prevention on fuel vent (Tim Olson)
4. 06:14 AM - Re: Re: Ice prevention on fuel vent (Phillip Perry)
5. 06:38 AM - Re: Re: Ice prevention on fuel vent (John Baer)
6. 07:45 AM - Re: Re: Ice prevention on fuel vent (Rene)
7. 08:30 AM - Re: Re: Ice prevention on fuel vent (Carlos Trigo)
8. 08:44 AM - Re: Re: Ice prevention on fuel vent (Rene)
9. 08:56 AM - Re: Re: Ice prevention on fuel vent (Tim Olson)
10. 03:32 PM - Re: Ice prevention on fuel vent (kearney)
11. 06:08 PM - Re: Re: Ice prevention on fuel vent (John Miller)
Message 0
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Value of the List... |
If you look forward to checking your List email everyday (and a lot of you have
written to say that you do!), then you're probably getting at least $20 or $30
worth of Entertainment from the Lists each year. You'd pay twice that for a
subscription to some
magazine or even a dinner out. Isn't the List worth at least that much to you?
Wouldn't it be great if you could pay that amount and get a well-managed media
source free of advertising, SPAM, and viruses? Come to think of it, you do...
:-)
Won't you please take a minute to make your Contribution today and support these
Lists?
http://www.matronics.com/contribution
Or, drop a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
USA
I want to say THANK YOU to everyone that has made a Contribution thus far during
this year's List Fund Raiser!! These Lists are made possible exclusively through
YOUR generosity!!
Thank you for your support!
Matt Dralle
Email List Admin.
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
Tim
In the Q+A for this ACS valve, at the Aircraft Spruce website, it says that t
his valve breakout pressure is 0 psi.
Will this work for this application?
Carlos
Enviado do meu iPhone
No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com> escreveu:
> Regarding that check valve...I just got around to looking at the link on t
his
> Aircraft Spruce one, Phil.
>
> I know you want one with a very very very low operating pressure (vacuum, a
ctually).
> If you get even a couple of psi that it takes to open the valve, your tank
will
> have probably imploded by then. This valve appears to be for fuel flow
> return lines. It doesn't seem to give a spec.
>
> I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
>
> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
>
> I can't say that the valve you linked to is bad, but I would just ca
ution to
> make sure that it's probably no more than 1psi of cracking pressure.
> Any valve that takes more than that to operate may risk tank
> collapse.
>
> Tim
>
>
>> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>> Here you go Dave..
>>
>> http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
>>
>>
>>
>> Sent from my iPhone
>>
>> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com> wrote:
>>
>>>
>>> I=99ve been looking for a check valve where can you get one with l
ow psi?
>>>
>>> --------
>>> Dave Ford
>>> RV6 for sale
>>> RV10 building
>>> Cadillac, MI
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=475455#475455
>>>
>>>
>>> <========================
==========================
==sp; --> htt====================
======; - MATRONI; http://forums.matronics.com
>>> http://wiki.matronics.com
>>> ========================
==bsp; - List Contribution Web S; -Matt Dralle,
List Admin.
>>> <========================
==========================
=====
>>>
>>>
>>>
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
If it says 0 psi I would say that is excellent and should be great.
Tim
> On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt> wrote:
>
> Tim
>
> In the Q+A for this ACS valve, at the Aircraft Spruce website, it says tha
t this valve breakout pressure is 0 psi.
> Will this work for this application?
>
> Carlos
>
> Enviado do meu iPhone
>
> No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com> escreveu:
>
>> Regarding that check valve...I just got around to looking at the link on t
his
>> Aircraft Spruce one, Phil.
>>
>> I know you want one with a very very very low operating pressure (vacuum,
actually).
>> If you get even a couple of psi that it takes to open the valve, your tan
k will
>> have probably imploded by then. This valve appears to be for fuel flow
>> return lines. It doesn't seem to give a spec.
>>
>> I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
>>
>> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
>>
>> I can't say that the valve you linked to is bad, but I would just caution
to
>> make sure that it's probably no more than 1psi of cracking pressure.
>> Any valve that takes more than that to operate may risk tank
>> collapse.
>>
>> Tim
>>
>>
>>> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>>> Here you go Dave..
>>>
>>> http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
>>>
>>>
>>>
>>> Sent from my iPhone
>>>
>>> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com> wrote:
>>>
>>>>
>>>> I=99ve been looking for a check valve where can you get one with l
ow psi?
>>>>
>>>> --------
>>>> Dave Ford
>>>> RV6 for sale
>>>> RV10 building
>>>> Cadillac, MI
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=475455#475455
>>>>
>>>>
>>>> <========================
==========================
==sp; --> htt====================
======; - MATRONI; http://forums.matronics.com
>>>> http://wiki.matronics.com
>>>> ========================
==bsp; - List Contribution Web S; -Matt Dralle,
List Admin.
>>>> <========================
==========================
=====
>>>>
>>>>
>>>>
>>
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
I should have read again before replying... darn.
That check valve will work fine, as would any free flow valve, but, the othe
r down side is your fuel vents are 1/4=9D tubing and that particular v
alve uses 3/8=9D fittings, so you will need to buy additional adapters
to fit it in, which may require a little more creativity in mounting. At $
27.50 it isn=99t super cheap either but looks like good quality. I don
=99t remember what I paid, but it would be worth checking out what oth
er valves you can find because if you can find one that is 1/8=9D NPT i
t may be easier to adapt. That said, mine is brass and is probably heavier t
han this one is too.
Tim
> On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt> wrote:
>
> Tim
>
> In the Q+A for this ACS valve, at the Aircraft Spruce website, it says tha
t this valve breakout pressure is 0 psi.
> Will this work for this application?
>
> Carlos
>
> Enviado do meu iPhone
>
> No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com> escreveu:
>
>> Regarding that check valve...I just got around to looking at the link on t
his
>> Aircraft Spruce one, Phil.
>>
>> I know you want one with a very very very low operating pressure (vacuum,
actually).
>> If you get even a couple of psi that it takes to open the valve, your tan
k will
>> have probably imploded by then. This valve appears to be for fuel flow
>> return lines. It doesn't seem to give a spec.
>>
>> I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
>>
>> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
>>
>> I can't say that the valve you linked to is bad, but I would just caution
to
>> make sure that it's probably no more than 1psi of cracking pressure.
>> Any valve that takes more than that to operate may risk tank
>> collapse.
>>
>> Tim
>>
>>
>>> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>>> Here you go Dave..
>>>
>>> http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
>>>
>>>
>>>
>>> Sent from my iPhone
>>>
>>> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com> wrote:
>>>
>>>>
>>>> I=99ve been looking for a check valve where can you get one with l
ow psi?
>>>>
>>>> --------
>>>> Dave Ford
>>>> RV6 for sale
>>>> RV10 building
>>>> Cadillac, MI
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=475455#475455
>>>>
>>>>
>>>> <========================
==========================
==sp; --> htt====================
======; - MATRONI; http://forums.matronics.com
>>>> http://wiki.matronics.com
>>>> ========================
==bsp; - List Contribution Web S; -Matt Dralle,
List Admin.
>>>> <========================
==========================
=====
>>>>
>>>>
>>>>
>>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
Yes. 0 psi on the valve to break it out.
I have a pair sitting in a box that I haven=99t installed yet and can p
lay with them to see how they behave. But 0 psi is what they claim for brea
kout and 20 psi max pressure.
It also mentions that the valve can be installed in any orientation.
Sent from my iPhone
> On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt> wrote:
>
> Tim
>
> In the Q+A for this ACS valve, at the Aircraft Spruce website, it says tha
t this valve breakout pressure is 0 psi.
> Will this work for this application?
>
> Carlos
>
> Enviado do meu iPhone
>
> No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com> escreveu:
>
>> Regarding that check valve...I just got around to looking at the link on t
his
>> Aircraft Spruce one, Phil.
>>
>> I know you want one with a very very very low operating pressure (vacuum,
actually).
>> If you get even a couple of psi that it takes to open the valve, your tan
k will
>> have probably imploded by then. This valve appears to be for fuel flow
>> return lines. It doesn't seem to give a spec.
>>
>> I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
>>
>> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
>>
>> I can't say that the valve you linked to is bad, but I would just caution
to
>> make sure that it's probably no more than 1psi of cracking pressure.
>> Any valve that takes more than that to operate may risk tank
>> collapse.
>>
>> Tim
>>
>>
>>> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>>> Here you go Dave..
>>>
>>> http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
>>>
>>>
>>>
>>> Sent from my iPhone
>>>
>>> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com> wrote:
>>>
>>>>
>>>> I=99ve been looking for a check valve where can you get one with l
ow psi?
>>>>
>>>> --------
>>>> Dave Ford
>>>> RV6 for sale
>>>> RV10 building
>>>> Cadillac, MI
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=475455#475455
>>>>
>>>>
>>>> <========================
==========================
==sp; --> htt====================
======; - MATRONI; http://forums.matronics.com
>>>> http://wiki.matronics.com
>>>> ========================
==bsp; - List Contribution Web S; -Matt Dralle,
List Admin.
>>>> <========================
==========================
=====
>>>>
>>>>
>>>>
>>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
Keep in mind that a 1 PSI pressure (or vacuum) over a 12=9D X 12=9D surface
area produces 144 pounds of force. Would you stand on your tank? Be carefu
l which check valve you use.
J
John Baer
Lititz Precision Products LLC
Lititz PA USA
www.LititzPP.com
Cell (EST USA) (717) 413-7931
Skype: John.Baer7712
From: <owner-rv10-list-server@matronics.com> on behalf of Tim Olson <Tim@M
yRV10.com>
Subject: Re: RV10-List: Re: Ice prevention on fuel vent
If it says 0 psi I would say that is excellent and should be great.
Tim
On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt> wrote:
Tim
In the Q+A for this ACS valve, at the Aircraft Spruce website, it says that
this valve breakout pressure is 0 psi.
Will this work for this application?
Carlos
Enviado do meu iPhone
No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com> escreveu:
Regarding that check valve...I just got around to looking at the link on th
is
Aircraft Spruce one, Phil.
I know you want one with a very very very low operating pressure (vacuum,
actually).
If you get even a couple of psi that it takes to open the valve, your tank
will
have probably imploded by then. This valve appears to be for fuel flow
return lines. It doesn't seem to give a spec.
I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
http://www.myrv10.com/N104CD/upgrades/20090525/index.html
I can't say that the valve you linked to is bad, but I would just caution
to
make sure that it's probably no more than 1psi of cracking pressure.
Any valve that takes more than that to operate may risk tank
collapse.
Tim
On 11/23/2017 7:20 AM, Phillip Perry wrote:
Here you go Dave..
http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=6903
Sent from my iPhone
On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com> wrote:
I=99ve been looking for a check valve where can you get one with low psi?
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=475455#475455
<====================================================sp; --> htt===========
===============; - MATRONI; http://forums.matronics.com
http://wiki.matronics.com
==========================bsp; - List Contribution Web S;
-Matt Dralle, List Admin.
<=======================================================
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
1. I went with the micro hole in the tube. Yes, loose a little positive
pressure, maybe, but KISS applies.
2. I do not know how to calculate the pressure left in the tank during
fuel burn with a clogged tube, but I know it is based on total air
volume and a perfect seal with the gas cap. So how long would it take
to get to .5 or .3 PSI? If someone knows and likes doing that type of
thing it would be interesting to calculate and build a graph. Is
pressure (vacuum) directly proportional to volume? E.g. as the fuel is
pump the air fills in the volume. So the last gallon has a lesser
affect than the first gallon. It could be interesting to see. Also,
how big would the check valve or micro hole really need to be. When
would the mechanical fuel pump begin having problems pulling the fuel
out of the tanketc all questions that come to mind.
I went KISS. And after 10 years (almost) of flying my -10 I have
learned that a little bit of completely has a long term cost. I mod my
airplane every year it seems and I like doing it..but I hate
HAVING to do maintenance before the next flight.
(KISS, Keep It Simple Stupid)
Now, back to work so I can take tomorrow off and fix my Navworx problem.
Thank you to all the guys who did the work on the AMOCs. Ralph Capen
and Bob Leffler in particular in my case.
Rene'
801-721-6080
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of John Baer
Sent: Friday, November 24, 2017 7:36 AM
Subject: Re: RV10-List: Re: Ice prevention on fuel vent
Keep in mind that a 1 PSI pressure (or vacuum) over a 12=9D X
12=9D surface area produces 144 pounds of force. Would you stand
on your tank? Be careful which check valve you use.
J
John Baer
Lititz Precision Products LLC
Lititz PA USA
<http://www.LititzPP.com> www.LititzPP.com
Cell (EST USA) (717) 413-7931
Skype: John.Baer7712
From: < <mailto:owner-rv10-list-server@matronics.com>
owner-rv10-list-server@matronics.com> on behalf of Tim Olson <
<mailto:Tim@MyRV10.com> Tim@MyRV10.com>
Subject: Re: RV10-List: Re: Ice prevention on fuel vent
If it says 0 psi I would say that is excellent and should be great.
Tim
On Nov 24, 2017, at 3:53 AM, Carlos Trigo <
<mailto:trigo@mail.telepac.pt> trigo@mail.telepac.pt> wrote:
Tim
In the Q+A for this ACS valve, at the Aircraft Spruce website, it says
that this valve breakout pressure is 0 psi.
Will this work for this application?
Carlos
Enviado do meu iPhone
No dia 24/11/2017, =C3-s 05:12, Tim Olson < <mailto:Tim@MyRV10.com>
Tim@MyRV10.com> escreveu:
Regarding that check valve...I just got around to looking at the link on
this
Aircraft Spruce one, Phil.
I know you want one with a very very very low operating pressure
(vacuum, actually).
If you get even a couple of psi that it takes to open the valve, your
tank will
have probably imploded by then. This valve appears to be for fuel flow
return lines. It doesn't seem to give a spec.
I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
<http://www.myrv10.com/N104CD/upgrades/20090525/index.html>
http://www.myrv10.com/N104CD/upgrades/20090525/index.html
I can't say that the valve you linked to is bad, but I would just
caution to
make sure that it's probably no more than 1psi of cracking pressure.
Any valve that takes more than that to operate may risk tank
collapse.
Tim
On 11/23/2017 7:20 AM, Phillip Perry wrote:
Here you go Dave..
<http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903>
http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
Sent from my iPhone
On Nov 23, 2017, at 3:57 AM, rvdave < <mailto:rv610dave@gmail.com>
rv610dave@gmail.com> wrote:
rv610dave@gmail.com>
I=99ve been looking for a check valve where can you get one with
low psi?
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
<http://forums.matronics.com/viewtopic.php?p=475455#475455>
http://forums.matronics.com/viewtopic.php?p=475455#475455
<========================
===sp; --> <http://www.matronics.com/Navigator?RV10-List>
htt========================
==; - MATRONI; <http://forums.matronics.com>
http://forums.matronics.com
<http://wiki.matronics.com> http://wiki.matronics.com
=bsp; - List Contribution Web S; -Matt
Dralle, List Admin.
<========================
======
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
By the way, Tim and all the experts in this forum
If the conditions create ice in the tip of the tube (which is in the air
stream), why does it nor create ice inside the wing cavity as well?
Is it because the ice is created not only by the air temperature, but
also by the positive dynamic pressure in the vent tube tip?
Wondering minds want to know
Thanks
Carlos
De: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] Em nome de Tim Olson
Enviada: Friday, November 24, 2017 1:02 PM
Para: rv10-list@matronics.com
Assunto: Re: RV10-List: Re: Ice prevention on fuel vent
I should have read again before replying... darn.
That check valve will work fine, as would any free flow valve, but, the
other down side is your fuel vents are 1/4=9D tubing and that
particular valve uses 3/8=9D fittings, so you will need to buy
additional adapters to fit it in, which may require a little more
creativity in mounting. At $27.50 it isn=99t super cheap either
but looks like good quality. I don=99t remember what I paid, but
it would be worth checking out what other valves you can find because if
you can find one that is 1/8=9D NPT it may be easier to adapt.
That said, mine is brass and is probably heavier than this one is too.
Tim
On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt
<mailto:trigo@mail.telepac.pt> > wrote:
Tim
In the Q+A for this ACS valve, at the Aircraft Spruce website, it says
that this valve breakout pressure is 0 psi.
Will this work for this application?
Carlos
Enviado do meu iPhone
No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com
<mailto:Tim@MyRV10.com> > escreveu:
Regarding that check valve...I just got around to looking at the link on
this
Aircraft Spruce one, Phil.
I know you want one with a very very very low operating pressure
(vacuum, actually).
If you get even a couple of psi that it takes to open the valve, your
tank will
have probably imploded by then. This valve appears to be for fuel flow
return lines. It doesn't seem to give a spec.
I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
http://www.myrv10.com/N104CD/upgrades/20090525/index.html
I can't say that the valve you linked to is bad, but I would just
caution to
make sure that it's probably no more than 1psi of cracking pressure.
Any valve that takes more than that to operate may risk tank
collapse.
Tim
On 11/23/2017 7:20 AM, Phillip Perry wrote:
Here you go Dave..
http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
Sent from my iPhone
On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com
<mailto:rv610dave@gmail.com> > wrote:
<mailto:rv610dave@gmail.com> >
I=99ve been looking for a check valve where can you get one with
low psi?
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=475455#475455
<========================
===sp; -->
htt========================
==; <http://www.matronics.com/Navigator?RV10-List> -
MATRONI; http://forums.matronics.com
http://wiki.matronics.com
=bsp; - List Contribution Web S; -Matt
Dralle, List Admin.
<========================
======
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
No expert here.if you do encounter icing check out the fuel
tank drain when you get on the ground. I do not remember seeing any on
the vent tube, was not looking, just noted a large chunk on the fuel
drain.
Rene'
801-721-6080
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Carlos Trigo
Sent: Friday, November 24, 2017 9:29 AM
Subject: RE: RV10-List: Re: Ice prevention on fuel vent
By the way, Tim and all the experts in this forum
If the conditions create ice in the tip of the tube (which is in the air
stream), why does it nor create ice inside the wing cavity as well?
Is it because the ice is created not only by the air temperature, but
also by the positive dynamic pressure in the vent tube tip?
Wondering minds want to know
Thanks
Carlos
De: owner-rv10-list-server@matronics.com
<mailto:owner-rv10-list-server@matronics.com>
[mailto:owner-rv10-list-server@matronics.com] Em nome de Tim Olson
Enviada: Friday, November 24, 2017 1:02 PM
Para: rv10-list@matronics.com <mailto:rv10-list@matronics.com>
Assunto: Re: RV10-List: Re: Ice prevention on fuel vent
I should have read again before replying... darn.
That check valve will work fine, as would any free flow valve, but, the
other down side is your fuel vents are 1/4=9D tubing and that
particular valve uses 3/8=9D fittings, so you will need to buy
additional adapters to fit it in, which may require a little more
creativity in mounting. At $27.50 it isn=99t super cheap either
but looks like good quality. I don=99t remember what I paid, but
it would be worth checking out what other valves you can find because if
you can find one that is 1/8=9D NPT it may be easier to adapt.
That said, mine is brass and is probably heavier than this one is too.
Tim
On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt
<mailto:trigo@mail.telepac.pt> > wrote:
Tim
In the Q+A for this ACS valve, at the Aircraft Spruce website, it says
that this valve breakout pressure is 0 psi.
Will this work for this application?
Carlos
Enviado do meu iPhone
No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com
<mailto:Tim@MyRV10.com> > escreveu:
Regarding that check valve...I just got around to looking at the link on
this
Aircraft Spruce one, Phil.
I know you want one with a very very very low operating pressure
(vacuum, actually).
If you get even a couple of psi that it takes to open the valve, your
tank will
have probably imploded by then. This valve appears to be for fuel flow
return lines. It doesn't seem to give a spec.
I got a valve from McMaster Carr that had a cracking pressure of .3 psi.
http://www.myrv10.com/N104CD/upgrades/20090525/index.html
I can't say that the valve you linked to is bad, but I would just
caution to
make sure that it's probably no more than 1psi of cracking pressure.
Any valve that takes more than that to operate may risk tank
collapse.
Tim
On 11/23/2017 7:20 AM, Phillip Perry wrote:
Here you go Dave..
http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903
Sent from my iPhone
On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com
<mailto:rv610dave@gmail.com> > wrote:
<mailto:rv610dave@gmail.com> >
I=99ve been looking for a check valve where can you get one with
low psi?
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=475455#475455
<========================
===sp; -->
htt========================
==; <http://www.matronics.com/Navigator?RV10-List> -
MATRONI; http://forums.matronics.com
http://wiki.matronics.com
=bsp; - List Contribution Web S; -Matt
Dralle, List Admin.
<========================
======
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
That's an easy one. The ice comes from direct contact with the
moisture in the air, not just because it's cold out. There
may be bits of liquid that DO get in the wing cavity during
flight, if you're in actual liquid rain, and those could freeze,
but it's unlikely that anything significant would get thru the
cracks if you're just talking cloud vapor.
With supercooled water, it will freeze on contact and my guess
is that even if you hit that while flying, it would freeze before it
would get significantly far into the wing cavity, maybe even
sealing the cracks it flows into.
But, all of the icing is from moisture, not air temp.
Tim
On 11/24/2017 10:28 AM, Carlos Trigo wrote:
> By the way, Tim and all the experts in this forum
>
> If the conditions create ice in the tip of the tube (which is in the air
> stream), why does it nor create ice inside the wing cavity as well?
>
> Is it because the ice is created not only by the air temperature, but
> also by the positive dynamic pressure in the vent tube tip?
>
> Wondering minds want to know
>
> Thanks
>
> Carlos
>
> *De:*owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] *Em nome de *Tim Olson
> *Enviada:* Friday, November 24, 2017 1:02 PM
> *Para:* rv10-list@matronics.com
> *Assunto:* Re: RV10-List: Re: Ice prevention on fuel vent
>
> I should have read again before replying... darn.
>
> That check valve will work fine, as would any free flow valve, but, the
> other down side is your fuel vents are 1/4 tubing and that particular
> valve uses 3/8 fittings, so you will need to buy additional adapters to
> fit it in, which may require a little more creativity in mounting. At
> $27.50 it isnt super cheap either but looks like good quality. I dont
> remember what I paid, but it would be worth checking out what other
> valves you can find because if you can find one that is 1/8 NPT it may
> be easier to adapt. That said, mine is brass and is probably heavier
> than this one is too.
>
> Tim
>
>
> On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt
> <mailto:trigo@mail.telepac.pt>> wrote:
>
> Tim
>
> In the Q+A for this ACS valve, at the Aircraft Spruce website, it
> says that this valve breakout pressure is 0 psi.
>
> Will this work for this application?
>
> Carlos
>
> Enviado do meu iPhone
>
>
> No dia 24/11/2017, s 05:12, Tim Olson <Tim@MyRV10.com
> <mailto:Tim@MyRV10.com>> escreveu:
>
> Regarding that check valve...I just got around to looking at the
> link on this
> Aircraft Spruce one, Phil.
>
> I know you want one with a very very very low operating pressure
> (vacuum, actually).
> If you get even a couple of psi that it takes to open the valve,
> your tank will
> have probably imploded by then. This valve appears to be for
> fuel flow
> return lines. It doesn't seem to give a spec.
>
> I got a valve from McMaster Carr that had a cracking pressure of
> .3 psi.
>
> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
>
> I can't say that the valve you linked to is bad, but I would
> just caution to
> make sure that it's probably no more than 1psi of cracking pressure.
> Any valve that takes more than that to operate may risk tank
> collapse.
>
> Tim
>
>
> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>
> Here you go Dave..
>
> http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=6903
>
> Sent from my iPhone
>
>
> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com
> <mailto:rv610dave@gmail.com>> wrote:
>
> <rv610dave@gmail.com <mailto:rv610dave@gmail.com>>
>
> Ive been looking for a check valve where can you get
> one with low psi?
>
> --------
> Dave Ford
> RV6 for sale
> RV10 building
> Cadillac, MI
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=475455#475455
>
>
> <===========================sp;-->
> htt==========================;- MATRONI;
> <http://www.matronics.com/Navigator?RV10-List>http://forums.matronics.com
> http://wiki.matronics.com
> ==========================bsp;- List
> Contribution Web S;-Matt Dralle, List
> Admin.
> <==============================
>
>
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
Hi
I got two of these from amazon - McMaster Carr is difficult to use in Canada.
https://www.amazon.com/gp/product/B01A63WB70/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Specs say cracking pressure is about 1/2 PSIG
Cheers
Les
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=475594#475594
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ice prevention on fuel vent |
In addition to the Van=99s recommended small hole drilled on the
back side of the line just above the end of the vent line, why not drill
the same diameter hole in the tubing underneath the wing fairing, giving
a second possible relief should the vent tube opening get plugged??
grumpy
> On Nov 24, 2017, at 7:02 AM, Tim Olson <Tim@MyRV10.com> wrote:
>
> I should have read again before replying... darn.
> That check valve will work fine, as would any free flow valve, but,
the other down side is your fuel vents are 1/4=9D tubing and that
particular valve uses 3/8=9D fittings, so you will need to buy
additional adapters to fit it in, which may require a little more
creativity in mounting. At $27.50 it isn=99t super cheap either
but looks like good quality. I don=99t remember what I paid, but
it would be worth checking out what other valves you can find because if
you can find one that is 1/8=9D NPT it may be easier to adapt.
That said, mine is brass and is probably heavier than this one is too.
> Tim
>
> On Nov 24, 2017, at 3:53 AM, Carlos Trigo <trigo@mail.telepac.pt
<mailto:trigo@mail.telepac.pt>> wrote:
>
>> Tim
>>
>> In the Q+A for this ACS valve, at the Aircraft Spruce website, it
says that this valve breakout pressure is 0 psi.
>> Will this work for this application?
>>
>> Carlos
>>
>> Enviado do meu iPhone
>>
>> No dia 24/11/2017, =C3-s 05:12, Tim Olson <Tim@MyRV10.com
<mailto:Tim@MyRV10.com>> escreveu:
>>
>>> Regarding that check valve...I just got around to looking at the
link on this
>>> Aircraft Spruce one, Phil.
>>>
>>> I know you want one with a very very very low operating pressure
(vacuum, actually).
>>> If you get even a couple of psi that it takes to open the valve,
your tank will
>>> have probably imploded by then. This valve appears to be for fuel
flow
>>> return lines. It doesn't seem to give a spec.
>>>
>>> I got a valve from McMaster Carr that had a cracking pressure of .3
psi.
>>>
>>> http://www.myrv10.com/N104CD/upgrades/20090525/index.html
<http://www.myrv10.com/N104CD/upgrades/20090525/index.html>
>>>
>>> I can't say that the valve you linked to is bad, but I would just
caution to
>>> make sure that it's probably no more than 1psi of cracking pressure.
>>> Any valve that takes more than that to operate may risk tank
>>> collapse.
>>>
>>> Tim
>>>
>>>
>>> On 11/23/2017 7:20 AM, Phillip Perry wrote:
>>>> Here you go Dave..
>>>>
>>>>
http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=6
903
<http://m.aircraftspruce.com/catalog/appages/acscheckvalve.php?clickkey=
6903>
>>>>
>>>>
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On Nov 23, 2017, at 3:57 AM, rvdave <rv610dave@gmail.com
<mailto:rv610dave@gmail.com>> wrote:
>>>>
<mailto:rv610dave@gmail.com>>
>>>>>
>>>>> I=99ve been looking for a check valve where can you get one
with low psi?
>>>>>
>>>>> --------
>>>>> Dave Ford
>>>>> RV6 for sale
>>>>> RV10 building
>>>>> Cadillac, MI
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Read this topic online here:
>>>>>
>>>>> http://forums.matronics.com/viewtopic.php?p=475455#475455
<http://forums.matronics.com/viewtopic.php?p=475455#475455>
>>>>>
>>>>>
>>>>> <=======================
====sp; -->
htt========================
==;=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2--
MATRONI;
<http://www.matronics.com/Navigator?RV10-List>http://forums.matronics.com
<http://forums.matronics.com/>
>>>>> http://wiki.matronics.com <http://wiki.matronics.com/>
>>>>> =======================
===bsp; - List Contribution Web S; -Matt
Dralle, List Admin.
>>>>> <=======================
=======
>>>>>
>>>>>
>>>>>
>>>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|