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Re: Super heater oil

March 09, 2018 08:27AM
I have a Chevron product spec sheet for cylinder oils that was published in late 1984.

They offered 4 grades, 460 which was uncompounded and had a flash point of 570 degrees F;

460X which was compounded and had a flash point of 555 degrees F;

680X which was compounded and had a flash point of 575 degrees F;

1000X which was compounded and had a flash point of 650 degrees F.

It went on to say that the compounded oils should never be used when exhaust steam is returned to the boiler,
a condition not seen on most smaller locomotives. Compounding was achieved by adding wetting agents to the
paraffin base oils.

I had not given this much thought until I worked for the GCR where 4960 sometimes saw Superheat temps
just getting to 700 degrees F.
Subject Author Posted

Super heater oil

Greg Vigil March 08, 2018 07:26PM

Re: Super heater oil

bcp March 08, 2018 08:07PM

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Russ489 March 08, 2018 09:10PM

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GeorgeGaskill March 09, 2018 01:01AM

Re: Super heater oil

Tom Moungovan March 09, 2018 08:27AM



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