FAQ Library

Welcome to our FAQ Library. Select the product family you are interested in by using the links on the left.

More information on all of our products can be found in the products section of this web site. Registered site users can also view our CAD files, installation and maintenance sheets and application database.

If you cannot find an answer to your question, or if you need more help with your application, please contact an Application Engineer at 800-903-9247 (513-671-3322 outside the U.S. and Canada).

My Reversible Drum Vac was working just fine when I got it, but it doesn't work very well any more. Why?

The Reversible Drum Vac has no moving parts. Degradation in performance is most likely due to contamination from the compressed air supply. Maintenance on the Reversible Drum Vac is not normally required if it is provided with the proper air filtration. Disassemble the unit and clean according to the Installation and Maintenance instructions that came with your unit.

Also, large pressure drops are possible across filter separators if the element is clogged with dirt. Check filter and replace element if needed.

A troubleshooting guide is available for the Reversible Drum Vac.

Can I buy a Reversible Drum Vac with a longer hose?

Yes, the Reversible Drum Vac can be purchased with a longer hose. Standard vacuum hoses can be purchased in 10' and 20' lengths. Other custom lengths of PVC hose are available by special order. Note: The Reversible Drum Vac is designed for use with a 10' hose. Longer hose lengths may affect performance depending upon the application.

Do you have a Reversible Drum Vac system smaller than 55 gallons?

Yes, EXAIR manufactures a Reversible Drum Vac system with a 5 gallon capacity which includes the drum. We also manufacture a Reversible Drum Vac system for use with a 30 gallon drum which is provided by the customer.

What are the proper applications for the Reversible Drum Vac?

The Reversible Drum Vac is designed to pick up liquids by creating a vacuum in any sealed-top 55 gallon drum. The Reversible Drum Vac can also empty the drum by inducing a pressure into the drum. The risk of over-pressurization is eliminated by a sensitive relief valve that is designed into the Reversible Drum Vac.

What is the vertical lift that your Reversible Drum Vac can produce?

The Reversible Drum Vac can produce approximately 9 feet of vertical lift at 80 PSIG inlet pressure. Our High Lift Reversible Drum Vac can produce approximately 15 feet of vertical lift at 80 PSIG inlet pressure.

Can I use the Reversible Drum Vac with other fluids/chemicals besides coolant?

Yes, chemicals other than coolant may be suitable for use with the Reversible Drum Vac. Contact an Application Engineer for a list of the materials of construction for the various Reversible Drum Vac components. This will allow you to determine if the specific chemical you are using will be suitable for use with the Reversible Drum Vac components.

Can I use the Reversible Drum Vac with a vessel which is larger than 55 gallons?

Yes, the Reversible Drum Vac will simply require more time to pressurize a larger vessel and push the liquid out. Caution: the Reversible Drum Vac will produce up to 5 psig internal pressure, make sure your vessel is rated more than 5 psi burst strength.

Why can't I use the Reversible Drum Vac with flammable materials?

The Reversible Drum Vac has the potential to produce a static charge which is caused by the material being transported.

What viscosity of fluid can your Reversible Drum Vac pump?

The Reversible Drum Vac is effective on a wide range of fluids, from water and water-based coolants to motor oil. The pumping rate is affected by the viscosity of the fluid. Water can be pumped at a rate of approximately 37 gallons per minute at 80 PSIG inlet pressure. Hydraulic oil can be pumped at a rate of approximately 10 gallons per minute, and 15W40 motor oil can be pumped at a rate of approximately 7 gallons per minute.

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