YELLOW JACKET 93580 Evacuation Pump, 8 CFM, 1/2 HP, 8 Ft Size

Yellow Jacket 93580 SuperEvac 1/2 hp single phase vacuum pump is an oil-sealed, two-stage rotary vane pump with a field rating of 15 microns or better. This SuperEvac vacuum pump is ideal for refrigeration and air conditioning applications.

Working Mechanism:

• Vacuum is a space devoid of matter with a gaseous pressure lower than atmospheric pressure.
• The primary function of a vacuum pump is to change the pressure in a contained space to create a full or partial vacuum, either mechanically or chemically.
• As gas molecules flow from high to low to fill the entire area of that volume, pressure will always try to equalise across connected regions.
• As a result, if a new low-pressure space is introduced, gas will naturally flow from the high-pressure area to the new low-pressure area until the pressures are equal.
• This vacuum is created by pushing molecules rather than "sucking" gases.
• By switching between high and low-pressure states, vacuum pumps move gas molecules from one region to the next to create a vacuum.

Features:

• This SuperEvac pump comes with an isolation valve that allows you to change the oil without losing vacuum in the system.
• It also has an integrated vacuum indicator gauge and a wide-mouth oil reservoir port for easier, cleaner filling.
• The convenient shoulder strap makes long-distance carrying easy, and the elongated oil sight glass provides a clear view of the oil level.
• The smaller oil bath uses half as much oil as previous designs and built-in cooling fins help to cool the pump and improve performance.

Frequently Asked Questions:

Q. Can you leave a vacuum pump running overnight?

A. Even if a cold trap is used, due to moisture contamination, the vacuum pump oil may need to be changed several times. Allow the vacuum pump to run unattended overnight only if a visual inspection of the vacuum pump oil reveals little or no moisture.

Q. What type of oil is used in a vacuum pump?

A. ISO 22 or ISO 32 viscosity is typically required for liquid ring vacuum pumps. The oil used in rotary vane vacuum pumps is typically ISO 68 (SAE 20) or ISO 100 (SAE 30). Process pumps and other vacuum pumps that use a gearbox require a viscous oil, such as ISO 220 (SAE 50).

Q. Which is better between a 1 stage and a 2 stage vacuum pump?

A. If the vacuum level is not an issue, a single-stage vane pump may suffice. If a deeper pressure with good vacuum performance is required, the dual-stage rotary vane pump is the best option.