Using check valve in YS 140DZ fuel system

[Fletcher, Richard]

I use a Slimline check valve from a smoke system on the vent line on my IMAC
plane and the tanks does indeed swell up and collapse depending on air
temps.
 
 
 
Rich
 
 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Ed Deaver
Sent: Monday, August 30, 2004 3:07 PM
To: discussion at nsrca.org
Subject: Re: Using check valve in YS 140DZ fuel system


I've used the check valve in the vent line from day one without any
problems.  Have never noticed any pressure buildup at all in the tank.
 
ed

Peter Pennisi <pentagon.systems at bigpond.com> wrote:



Some flying buddies of mine have been having a discussion about using a
check-valve in the fuel system to essentially stop fuel from dripping out of
the vent line. I have been using this system without any problems that I
know off for some time. One of the pattern flyers I fly with is very good
with engines and he doesn't think it is a very good idea to use the valve in
the DZ fuel system as the tank will always have a slight pressure build up
inside which may result in inconsistent engine runs. I don't know about his
theory but I do know that all the Japanese flyers at the recent CAOCC event
were using check valves in the fuel system.

I would be interested to hear from anyone who may have an opinion on this
subject.


Regards,

Peter


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