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Really OT: Engineers out there

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YOUR RESEARCHReally OT: Engineers out there

Leading reported evidence

Test on an aircraft fuel tank

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
I am doing a test on an aircraft fuel tank to measure the oxygen concentration.
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Really OT: Engineers out there

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Leading evidence: 'Test on an aircraft fuel tank' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test on an aircraft fuel tank' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Test the tips of the probes are going

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
The problem is that as the fuel level rises during the test, the tips of the probes are going to be immersed in fuel.
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Really OT: Engineers out there

Frequently discussed actions (2)

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Test on an aircraft fuel tank

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
I am doing a test on an aircraft fuel tank to measure the oxygen concentration.
Original post Read captured discussion
Really OT: Engineers out there

Test the tips of the probes are going

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
The problem is that as the fuel level rises during the test, the tips of the probes are going to be immersed in fuel.
Original post Read captured discussion
Really OT: Engineers out there

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

2 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Question for all engineers out there. I am kind of in a quandary at work and need a little help locating a valve for a fuel tank. I am doing a test on an aircraft fuel tank to measure the oxygen concentration. The approach to take the sample is to insert a 1/4" od, 1/8" id ss tube into the tank and, via a vacuum pump, suck (insert joke here) a sample to the oxygen analyzers. The problem is that as the fuel level rises during the test, the tips of the probes are going to be immersed in fuel. This means we are going to suck JP-8 into the analyzers (not good) unless we put a mechanical float valve on the tip of the probe to eliminate getting fuel into the analyzers. Seems like a good solution. Problem... I cannot Find any Float valves suitable for my application. If anyone knows where I can find an extremely compact float valve that can be fully immersed in jet fuel, attached to a 1/4" tube by way of a swage-lock compression fitting, and can seal well enough to hold a -10psi vacuum, I would be eternally in your debt. For ever and ever and ever and ever and ever. Peace out.

POST 2Original post

stephen,try aircraftspruce.com Mike

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