VENTURI VACUUM GENERATORS
ENERGY COMPARISON

Names like PIAB, FESTO, STILSON, SMC PNEUMATICS, GAST, AIR-VAC, VACCON and too many others all make venturi vacuum generators.

They share the same common inefficient design that causes in some cases the use of a 30 HP compressor to do the work of a 10 HP vacuum pump. We are available with the solution to reducing the energy costs of these devices and it’s called “using a vacuum pump to make vacuum”.

Vacuum pumps today are simple, efficient and quiet.

We can get you out of that energy drain and save money.

Here is an example of how it works.

A PIAB model M2000 venturi vacuum generator will have a vacuum capacity of 5.64 SCFM at 18” HgVac. According to PIAB published

data, this venturi will require 70 SCFM of 60 PSIG compressed air. This compressor capacity and air pressure will require a 15 HP air compressor.

If we compare this to a BECKER model VT 4.25 oil-less (dry) rotary vane vacuum pump, it will show that the vacuum pump uses a 1.2 horsepower motor to get the same vacuum and flow (SCFM).

The compressed air driven venturi uses more than 10 times the horsepower.

In most locations the cost of electricity may exceed 18¢/KW-HR. This means the BECKER vacuum pump costs 22¢ per hour to operate while the air compressor costs $2.24 per hour to operate.

The BECKER vacuum pump model VT 4.25 costs $1210.00. In 605 hours of operation, the BECKER pump has paid for itself.

It is generally accepted that a compressor has a maintenance cost of about $100/horsepower annually. Most companies have outside service contracts to do the annual maintenance. Your records can confirm your costs. Therefore, in this case, the 15 horsepower compressor is $1500/year in maintenance while the BECKER vacuum pump is about $120/year. The BECKER product can be maintained by your maintenance staff in about 1 hour annually. We can demonstrate that, ask us.

There are many different vacuum venturi’s on the market. The older models are being replaced by newer more efficient units. THE FACT is even if the current state-of-the-art venturi was twice as efficient as the older models, you are still in the area of 5 times the horsepower requirement.

THE FACT is today’s vacuum pump technology is much more maintenance friendly than the older technology.

Dry, oil-less, rotary vane vacuum pumps do not require oil changes and in many cases, the motor and pump bearings are sealed for up to 40,000 hours of service. No greasing of bearings required.

An extreme example of how much money is saved with a vacuum pump is to consider that you could throw out your vacuum pump every year and plug in a new one. I guess that would be the ultimate no maintenance program!

Call us and we can provide all
the help you need to start the savings!