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Cacejen Vacuum CVT -19 Ultra

Recommended general purpose hydrocarbon fluid for mechanical vacuum pumps used in non-corrosive applications. The manufacturing process of CVT 19 ultra includes molecular distillation, which removes light end fractions present in the fluid and gives it the desired properties: reduced back- streaming, lower vapor pressures and longer fluid life. As a result, it can be used within the same applications as more expensive diffusion pump oils which would otherwise be contaminated by vacuum oil of lower grade.

A durable, long-lasting mechanical pump fluid, CVT 19 ultra is cost-effective in vacuum applications such as mass spectrometers, electron microscopes, thin film sputtering, UHV systems, and freeze dry systems. Proper use of this oil effects reduced maintenance costs, improved pumping cycles, and a cleaner vacuum system.


CVT- 19 ultra

Vapor Pressure at 25ºC (torr)


Boiling Point at .01 torr (ºC)


Viscosity at 40ºC (cSt)


Pour Point (ºC)


Flash Point (ºC)


Fire Point (ºC)


Density at 25ºC (g/ml)


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DC 704 Diffusion Vac Oil  500ml DC 704 Diffusion Vac Oil 500ml

Invoil® 704  

Invoil 704 is a silicone diffusion pump oil with low vapor pressure and great thermal stability, making it desirable in processes such as vacuum coating, metallurgical work, and various other applications. It offers superior vapor pressure capabilities and quick pump down cycles.

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Apiezon® high vacuum greases include silicone-free hydrocarbon greases, as well as a chemically inert PFPE grease, suitable for a variety of applications. Apiezon grease is used and recommended by major manufacturers around the globe for high vacuum lubrication and sealing.

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55 Gallon Drum, CVT 19 Ultra 55 Gallon Drum, CVT 19 Ultra


ULTRA Fluids

ULTRA® products are semi-synthetic hydrocarbon fluids designed to endure thermal and chemical stresses much better than standard vacuum pump fluids. The ultra-refined process eliminates nitrogen, sulfur, oxygen, and aromatic hydrocarbons, leaving a clear base stock virtually free of impurities.

The additive package will not volatize under thermal stress; the antioxidant will stay in solution and bond up to four times as many radicals as other antioxidants, extending the life of the pump and the fluid.

Our Price: $1,700.00