IEDCO 15a - Vacuum Pump Spec Sheet

How does a Vo l k m a n n Va c u u m P u m p W o r k ?

From single stage Venturis…

MULTIJECTOR® M-Series

The basic advantages of compressed air driven vacuum pumps are well known. Their small size, low weight, simple design, little maintenance and wear resisting operation put them in first place when it comes to conveying applications. The easily installation, control and free positioning Compressed make work easier. And the operators go for their Air quiet operation and lack of heat emission or oil Suction Air mist. But how do you increase efficiency of such a (Vacuum) Venturi? How do you keep the high vacuum and Exhaust same energy consumption, but give you more induced air (suction air)? Take a look at the illustration of the MULTIJECTOR® to understand. A classical Venturi comes with a primary nozzle (injector), a secondary nozzle (diffuser) and a jet chamber (the gap between). The compressed air rushes through the primary nozzle, expands and accelerates causing a pressure drop. On its way toward the secondary nozzle, it catches and mixes surrounding air and finally exits the Venturi through the secondary nozzle.

...to the MULTIJECTOR® The MULTIJECTOR® comes with an advanced nozzle system, in which additional nozzles are placed in line with the primary and secondary nozzle. The suction air of each venturi stage, mixed with the compresssed air of the primary nozzle, works as the gas jet for the following stage for free and with no additional air consumption. These additional Venturi stages don’t reach the high vacuum of the first, but their larger jet chambers produce an even higher suction volume. Still the vacuum pump reaches the high vacuum of the first Venturi stage, because flap valves close automatically in order of pressure balance between their certain Venturi stage and the collective vacuum chamber.

The special design of the nozzles and aerodynamics gives Volkmann MULTIJECTOR® vacuum pumps their unique efficiency: Common single stage Venturis perform at a ratio of 0.7:1 (suction air : needed compressed air). Modern Multijectors reach a ratio of up to 6:1. The MULTIJECTOR® saves air!

MULTIJECTOR® … … are lightweight & quiet … are maintenance free … are free of wear … don’t have rotary parts … don’t need oil … are purely pneumatic … don’t have ignition sources … don’t produce heat And reach … max. –27” Hg vacuum … max. 740 sq ft/min suction air

...a world of experience to meet your powder handling challenges The MULTIJECTOR® Series of Vacuum Pumps M and ML Series MULTIJECTOR® pumps of the M– and ML-Series work with three ejector stages which are connected in a row. Their robust and compact aluminum casing makes the pump resistant even to strong mechanical loads. Nevertheless, they are very light and offer considerable amounts of sucion air at a small size.

MULTIJECTOR® M is the optimal choice with the best efficiency.

Vacuum pumps of this series are used when a compressed air supply of 87 psi is available: high suction at a competitve price.

MULTIJECTOR® ML is used when the pressure in the compressed air supply deacreases frequently and there is still a need for a high vacuum.

The ML-Series reach high vacuum levels with an inlet pressure of only 51 psi. They are the clever choice to ensure a high vacuum at low operating pressure and pressure variations.

G and GL Series G-Type MULTIJECTORS® are four-stage ejectors and offer an even better efficiency especially at free aspriation and low vacuum. They consist of a light and tough modular Aluminum design. They are the ideal choice for bigger transportaion capacities. G-Types are used for Vacuum Conveyors with diameters of 250 mm and larger. They are available with a silencer or exhaust adaptor element.

MULTIJECTOR® G is the optimal choice if 87 psi operating pressure is available because they are the most efficient.

MULTIJECTOR® GL is the safe choice at low operating pressure or if strong pressure variations have to be taken into account due to the fact that their maximum vacuum is achieved at only 51 psi inlet pressure.

MRVA and MRVAC Series MULTIJECTOR® MRVA and MRVAC Series are three stage ejectors in a round stainless steel design. This Multijector-type offers an enormous suction performance of up to 4.5 times the used compressed air and up to –0.013 vacuum in a very compact size. The MRVA vacuum generators ar made of high-quality resistant materials and are ideal for appications where aggressive drawn-off media or critical ambience conditions have to be taken into consideration.

The MULTIJECTOR® MRVAC is the first CIP-able multiple stage ejector pump and can completely be rinsed inside from the vacuum side in installed state. The cleansing liquid leaves the MRVAC through the exhaust air opening.

Industrial Equipment & Design Company 465 Woodbury-Glassboro Road Sewell, NJ 08080 Phone: 856.218.7330 Fax: 856.218.7337 www.iedco.com info@iedco.com