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Fuel Pressure Sensor search

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jloram

Joined: 07 Nov 2009
Posts: 54
Location: United States

Posted: Fri Sep 14, 2012 3:39 pm Post subject: Fuel Pressure Sensor search

Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor.

Can be either two or three terminal.



thanks for leads (brands or unused items), -john-

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nuckolls.bob(at)aeroelect
Guest

Posted: Fri Sep 14, 2012 5:50 pm Post subject: Fuel Pressure Sensor search

At 06:38 PM 9/14/2012, you wrote:

 	  Quote: 	
		  



Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor.

Can be either two or three terminal.



thanks for leads (brands or unused items), -john-


	


   Finding such a critter with a full scale

   range that small is problematic . . . especially

   one with all metal pressure-side materials

   that would be okay with gasoline.



   Suggest you look at something like this



http://tinyurl.com/9uw647y

http://tinyurl.com/8unuxge

http://tinyurl.com/983v7o7

http://tinyurl.com/99xfyrs



   This is a small sample of possibilities.

   They're all aerospace grade devices at

   very reasonable prices compared to off the

   shelf new. Even as used devices, transducers

   of this genre' are likely to be a better

   value than automotive devices.

   Bob . . .

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retasker(at)optonline.net
Guest

Posted: Fri Sep 14, 2012 7:39 pm Post subject: Fuel Pressure Sensor search

Interesting.  The first is one made by my company.

Dick Tasker

Robert L. Nuckolls, III wrote:

 	  Quote: 	

 At 06:38 PM 9/14/2012, you wrote:

> 

>

> Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor.

> Can be either two or three terminal.

>

> thanks for leads (brands or unused items), -john-

   Finding such a critter with a full scale

   range that small is problematic . . . especially

   one with all metal pressure-side materials

   that would be okay with gasoline.

   Suggest you look at something like this

 http://tinyurl.com/9uw647y

 http://tinyurl.com/8unuxge

 http://tinyurl.com/983v7o7

 http://tinyurl.com/99xfyrs

   This is a small sample of possibilities.

   They're all aerospace grade devices at

   very reasonable prices compared to off the

   shelf new. Even as used devices, transducers

   of this genre' are likely to be a better

   value than automotive devices.

   Bob . . .

-- 

Please Note:

No trees were destroyed in the sending of this message.  We do concede, however,

that a significant number of electrons may have been temporarily inconvenienced.

--

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eschlanser

Joined: 08 Apr 2010
Posts: 60

Posted: Tue Sep 18, 2012 12:23 pm Post subject: Re: Fuel Pressure Sensor search

Those are higher pressure (7.5 psi) sensors than john asked for. 

Working with a cabin tank and gravity fed fuel line here (no fuel pump).

How would it be plumbed and wired into a gravity fed fuel line from a cabin tank mounted between the instrument panel and the firewall, with the fuel line routed from the bottom of the tank going forward to the firewall mounted gascolator, and finally to the carburetor?

What gauge would work with it?

Thanks, 

Eric Schlanser

[quote="retasker(at)optonline.net"]Interesting.  The first is one made by my company.

Dick Tasker

Robert L. Nuckolls, III wrote:

[quote] 

 At 06:38 PM 9/14/2012, you wrote:

> 

>

> Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor.

> Can be either two or three terminal.

>

> thanks for leads (brands or unused items), -john-

   Finding such a critter with a full scale

   range that small is problematic . . . especially

   one with all metal pressure-side materials

   that would be okay with gasoline.

   Suggest you look at something like this

 http://tinyurl.com/9uw647y

 http://tinyurl.com/8unuxge

 http://tinyurl.com/983v7o7

 http://tinyurl.com/99xfyrs

   This is a small sample of possibilities.

   They're all aerospace grade devices at

   very reasonable prices compared to off the

   shelf new. Even as used devices, transducers

   of this genre' are likely to be a better

   value than automotive devices.

   Bob . . .

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

retasker(at)optonline.net
Guest

Posted: Tue Sep 18, 2012 1:21 pm Post subject: Fuel Pressure Sensor search

If it is just gravity fed, what is the point of a pressure sensor? If you are planning to use it as a fuel gauge, that 

would be not so easy.  The majority of the gravity fed head is from the bottom of the fuel tank in the wings to the 

point of use.  The head pressure in the wing from full to empty is a small fraction of that.  So you would need a sensor 

that can withstand avgas (or autogas if that is what you are using) that could measure only a few inches of water 

(fractions of a psi).  Possible, but not so easy.

Dick Tasker

P.S. We (www.astsensors.com) do make sensors that will measure down to 5 inH2O but the cost is not particularly 

appealing for this type of use.

eschlanser wrote:

[quote] 

 Those are higher pressure (7.5 psi) sensors than john asked for.

 Working with a cabin tank and gravity fed fuel line here (no fuel pump).

 How would it be plumbed and wired into a gravity fed fuel line from a cabin tank mounted between the instrument panel and the firewall, with the fuel line routed from the bottom of the tank going forward to the firewall mounted gascolator, and finally to the carburetor?

 What gauge would work with it?

 Thanks,

 Eric Schlanser

 [quote="retasker(at)optonline.net"]Interesting.  The first is one made by my company.

 Dick Tasker

 Robert L. Nuckolls, III wrote:

  	  Quote: 	

   At 06:38 PM 9/14/2012, you wrote:

>

> Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor.

> Can be either two or three terminal.

>

> thanks for leads (brands or unused items), -john-

     Finding such a critter with a full scale

     range that small is problematic . . . especially

     one with all metal pressure-side materials

     that would be okay with gasoline.

     Suggest you look at something like this

   http://tinyurl.com/9uw647y

   http://tinyurl.com/8unuxge

   http://tinyurl.com/983v7o7

   http://tinyurl.com/99xfyrs

     This is a small sample of possibilities.

     They're all aerospace grade devices at

     very reasonable prices compared to off the

     shelf new. Even as used devices, transducers

     of this genre' are likely to be a better

     value than automotive devices.

     Bob . . .

 Read this topic online here:

 http://forums.matronics.com/viewtopic.php?p=383454#383454

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eschlanser

Joined: 08 Apr 2010
Posts: 60

Posted: Tue Sep 18, 2012 4:03 pm Post subject: Re: Fuel Pressure Sensor search

I was thinking fuel flow, not fuel level. I suspect it's not appropriate for that use. Nevermind.

thanks, 

Eric

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user9253

Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan

Posted: Wed Sep 19, 2012 5:58 am Post subject: Re: Fuel Pressure Sensor search

I think a fuel tank pressure transducer or switch would be a nice to have to warn about a plugged vent.  Some accidents have happened because the fuel tank vent was plugged.  Is there an inexpensive and easy way to monitor fuel tank pressure? Perhaps an automotive fuel tank pressure sensor would work.  I even thought about mounting a microswitch against the outside of the tank, if tank geometry and accessibility allowed.  The switch would operate if the tank skin was forced inward by atmospheric pressure.  A low pressure warning might prevent a forced landing.  Of course a thorough pre-flight inspection of the fuel vent is easier than installing more instrumentation.  Some of us forget or are in a hurry.  Just thinking out loud.

Joe

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_________________
Joe Gores

jloram

Joined: 07 Nov 2009
Posts: 54
Location: United States

Posted: Wed Sep 19, 2012 10:16 am Post subject: Fuel Pressure Sensor search

Thanks all for leads. I've settled on the 0-5psi (0.33 bar) fuel pressure

sensor that Dynon sells for their engine monitor system. They designate it

for Jabiru/Rotax gravity feed applications, exactly my situation.



thanks again, -john-

[quote] --

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