I have an heavy industrial application
(steel mill)hydraulic system that specifies
ISO AW 46 oil-the local vender can blend the additive package for this oil.
What are the pros and cons of the zinc in the add package??
Thanks,
Tom
Original Post
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It is best to use an antiwear ISO VG 46 Hydraulic Oil branded oil from Shell, Castrol, Exxon-Mobil etc.. Better still you could use a HLP type VG 46 oils from the above brands.
ZDDP is an integral package in the Lube and Oil Cos., are the best judge for the amount of Zinc. While the automotive industry is exiting the Zinc packages as the catatylic filter (CF) in the exhaust get coated, thereby reducing the life of CF. The Industrial application do not have such problems.
However, a word of caution, with probable ingress of water or moisture; as this precipitates as 'white substance" on the filter.
Hussam
ZDDP is an integral package in the Lube and Oil Cos., are the best judge for the amount of Zinc. While the automotive industry is exiting the Zinc packages as the catatylic filter (CF) in the exhaust get coated, thereby reducing the life of CF. The Industrial application do not have such problems.
However, a word of caution, with probable ingress of water or moisture; as this precipitates as 'white substance" on the filter.
Hussam
If you have a general industrial requirement, ZDDP chemistries have been used for decades with success. They are inexpensive and provide good antioxidant properties in addition to antiwear properties. This would be an appropriate additive for leaky hydraulic units. ZDDP has a lot of challenges however in more demanding applications and is viewed to be less environmentally friendly.
If your unit is operating at higher temperatures, is at risk to water exposure and/or has a low make-up rate, I would suggest a zinc free additive system. There are many zinc-free antiwear additive packages available depending upon your application.
If your unit is operating at higher temperatures, is at risk to water exposure and/or has a low make-up rate, I would suggest a zinc free additive system. There are many zinc-free antiwear additive packages available depending upon your application.
