Caution! Vacuum Pump Users

The role of Rotary vacuum pump (also called

Roughing pump), in creating a smooth vacuum

cycle cannot be stressed upon enough. In turn,

this makes rotary/mechanical pump oil an

important factor in the smooth running of the

vacuum pump.

Unfortunately many vacuum pump users do not

realize that rotary vacuum pump oil is not an

ordinary lubricant. It is a special fluid,

manufactured, keeping in mind the required

thermal and oxidative stability and is absolutely different from motor oil.

Motor oils are lubricants made for car/scooter/truck engines. They have a different viscosity

index and carry no vacuum properties.

Motor oils contain numerous additives like rust inhibitors, anti-corrosion compounds etc. that

are indeed required for a motor engine. But the same elements present inside a vacuum pump

can become potentially harmful. Inside a vacuum pump, under high temperature and low

pressure, these additives get separated from the base fluid and stick to the interiors as gummy

substances. This affects not only the vacuum pressure but also harms the pump.

Also when working temperature of Rotary Pump which is about 80⁰C is reached, motor oils

start releasing vapors. This destroys the vacuum. Whereas Vacuum oils during manufacturing

are heated to 300⁰C under high vacuum. So they do not release any vapors.

Supervac Silicone Rotary vacuum pump oil (SV-77) and Supervac Hydrocarbon rotary

vacuum pump oil (SV-68) are free of such harmful agents.

They are also free of aromatic compounds. SV-77, a next generation, triple distilled, synthetic

rotary pump oil is an excellent product manufactured by Supervac Industries. Along with

excellent lubrication it delivers ultimate vacuum of 6×10‾⁴ Torr. Its life is almost 3 times that

of ordinary lubricant/motor oil and does not turn to sludge, thereby, bringing down the

requirement for pump maintenance. SV-77 has received tremendous positive response from

the vacuum industry.