130eng Posted January 19, 2011 Share Posted January 19, 2011 Anyone know how flammable our hydraulic fluid is (87257/83282)? Just wondering how much danger an electrical spark could potentially pose in a hydraulic mist situation. Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted January 19, 2011 Share Posted January 19, 2011 Anything in mist form with an air/fuel ratio of about 15/1 will burn. MIL-PRF-83282 is supposed to be less flammable than MIL-H-5606. Least flammable is really sh!tty stuff used by Boeing, known as SKYDROL Quote Link to comment Share on other sites More sharing options...
mongo Posted January 19, 2011 Share Posted January 19, 2011 Skydrol is nasty stuff! I have had it in my eyes, mouth, and lungs. really makes me miss good old 5606. But, it does have a higher flash point and better erosion control capabilities in valves, actuators, etc etc.. Boeing, airbus, and Lockheed all use it. I'm only guessing that 5606 will eventually be phased out. Are the new J models useing 5606? P.S. wash your paws before you go to the little boys room. especially when handling skydrol! Quote Link to comment Share on other sites More sharing options...
P3_Super_Bee Posted January 19, 2011 Share Posted January 19, 2011 MIL-PRF-83282 is classified as NOT FLAMMABLE... Flashpoint: >205 degrees C Fire Point: >245 degrees C Autoignition Temperture: >345 degrees C Quote Link to comment Share on other sites More sharing options...
The Red Stuff Posted January 19, 2011 Share Posted January 19, 2011 (edited) MIL-H-5606, we use to clean the valves and piston tops of flight line vehicles with it. Added through the carburetor and/or added to the fuel. SKYDROL, is some nasty stuff. Worked for Boeing Renton for a while and we were supposed to wear gloves when working with it. Seldom did. It seemed to be harder on some peoples skin than others. Edited January 19, 2011 by The Red Stuff Quote Link to comment Share on other sites More sharing options...
Lkuest Posted January 20, 2011 Share Posted January 20, 2011 Anyone know how flammable our hydraulic fluid is (87257/83282)? Just wondering how much danger an electrical spark could potentially pose in a hydraulic mist situation. From what I heard, Brush Block fires were a hazard until they switched to the new spec. I have yet to see one catch fire, although I've seen them shoot sparks and electric bolts. Quote Link to comment Share on other sites More sharing options...
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