Spec Grav and Spec Heat Values For Throttling Calc

• Mar 30, 2006

• #2

zeusfaber

Military

May 26, 2003

2,466

GB

I'd be awfully tempted just to get a can of the stuff and measure these properties.

A.

 

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• Mar 30, 2006

• #3

Gkranz

Mechanical

Jul 19, 2005

37

US

Simply type in Google'
MSDS - 83283

All you need is there.

Westerndynamics.com

 

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• Mar 31, 2006

• Thread starter
• #4

tc7

Mechanical

Mar 17, 2003

387

US

Oops! typing error, the fluid is Mil-PRF-83282.
I have the MSDS, and it cites "Not available" for Vapor Pressure, does not mention Specific Heat at all, and provides Spec Grav at 60 deg F only.

Hoping someone knowledgable with Hydraulic fluid can suggest a similar oil with available values.
Thanks.
Tom

 

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• Mar 31, 2006

• #5

Gkranz

Mechanical

Jul 19, 2005

37

US

tc7,

Replacement for the old 5606 aircraft hydraulic fluid, been out since about 1988.
Spec. Gravity= 0.84
vapor pressure= <0.02
vapor density=<7
boiling point= 520F/271C

Not that special of fluid, any good low temp operating fluid on market will due.
Type in MSDS 83282B in serach and it will come up. Will not get spec gr. at different temps unless you know somebody in mfg, or calculate it out. Simply call mfg, most will provide more information if you have a good reason to have this data.


Westerndynamics.com

 

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• Apr 10, 2006

• Thread starter
• #6

tc7

Mechanical

Mar 17, 2003

387

US

I just wanted to close this thread off by directing any one researching information on dT due to throttling (very little has been discussed at all in Eng-Tips.com), to search through the Chemical Process Engineering forum ( thread798-151207 ), some very good formulas and explanations have been posted by UmeshMathur.

 

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• Apr 26, 2006

• #7

THRUSTBUSTER

Aerospace

Mar 4, 2003

1

US

MIL-F-83282 is a specification for synthetic hydrocarbon base, fire resitant fluid, identified by NATO code H-537. It is "miscible" with fluids conforming to MIL-H-5606 and MIL-H-87257 from -40°C to 135°C. I am not sure what the rubber swell test reports are but would suggest that you get a copy of the specification since some of these synthetics do not mix with "BUNA N" rubber very well.

 

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