Coke Ovens Gas Cock Lubrication

http://www.hanseatica.com.co/k...RILUB_ALZ_250-sp.pdf

What is your application?

Regards,

Nurudin

Hi Narudin
It's applied by way of a dual line grease system to all the gas reversal cocks at the coke ovens.

Regards
Frank

An alternative grease is on offer from Chemtool called Duralub Special. Has anyone used this grease? does it do the job?

Frank

Guys
So far I found Kluber Varilub ALZ 250 and Steelco S-66 Syn Tal Lubricant any others?

I'm interested in carrying out a test to find the best product for this application.

Frank

Hi Frank, yes I think J&M Products could be worth a call, they have products aimed at the same applications, we tested J&M Specialised Products Polyfluoro Lubricants 5 or 6 years ago and two of their greases exceeded all other test greases including kluber's capabilities for heat resistance.
They would have a copy of the test.Their email: .
jandmspecializedproducts@gmail.com

Regards

Rob S

www.rttech.com.au

Hi Rob
The grease is more a sealant than anything else to prevent the low pressure gas from scaping so it has to be adhesive and cohesive and possess polymers, low oil bleed properties and good compatibility with Coke Ovens and Blast Furnace gas. The application is ambient temperature so Joe's product is an overkill not to mention price as it takes 9*180Kg drums to fill the lines.

Regards
Frank

Hi Frank,
sounds like you described an application for a Calcium Sulfonate type thickener,
How far are you pumping the grease?
Regards
Rob S

Rob
I'll find out, I'm also looking at some test that will measure grease thickness, The grease for this application has to prevent the gas from leaking, so If I could find such a test I could measure a few types. I was thinking of a dob of grease between two glass plates and a light weight with dial indicator on top to measure the thickness after the grease has spread to the minimum thickness, what do you think?
Frank

I have another question for you, where can I purchase a small second hand oven for testing the temperature capabilities of greases?

Regards
Frank

Hi Frank, What is the temp and duration of use each time the grease is applied?,
Regards
Rob S

quote:

Originally posted by Frank C:
is anyone found an alternative to Kluber Varilub ALZ 250?

Please check with Elba Lubrication Inc they have a product with a name of Elbafood EH1
www.elba-lubes.com

quote:

Originally posted by rttech:
Hi Frank,
sounds like you described an application for a Calcium Sulfonate type thickener,
How far are you pumping the grease?
Regards
Rob S

Its not Calcium Sulfonate, Its Al Complex grease with mineral oil.

Mr Harris, if you don't understand about the products we are discussing you are far better to keep your comments to your self as when you place it in writing all can see, you are attempting to sell on the boards without considering the application, Mr Frank C is most likely already using an AL complex.
Regards
Rob S