Dry Lobe Pumps
The manufacturer can tell you which certifications, if any, their rotary lobe pump meets.
A gentle pumping action minimizes product degradation.
They are popular in these diverse industries because they offer superb sanitary qualities, high efficiency, reliability, corrosion resistance, and good clean-in-place and sterilize-in-place (CIP/SIP) characteristics.
Frequency control available
The sanitary designs break down further depending on the service and specific sanitary requirements.
Only the gearbox and bearings, which are separated from the pumping chamber, are oil lubricated.
This means that there is no need for oil or grease in the compression chamber.
Dry lobe pumps are used in a variety of industries including, pulp and paper, chemical, food, beverage, pharmaceutical, and biotechnology.
If wetted, they offer self-priming performance.
These requirements include 3-A, EHEDG, and USDA.
Rotary lobe pumps are non-contacting and have large pumping chambers, allowing them to handle solids such as cherries or olives without damage.
Oil lubricated gearbox and bearing separated from compression chamber
They are widely used in the hygienic processing industries, including food & beverage processing and biopharmaceutical manufacturing.
Dry lobe pumps are positive-displacement type pumps that use two or more lobes rotating around parallel shafts in the pump’s body to move liquids.
Unlike gear pumps, the lobes used in these pumps do not make physical contact with each other, a feature that provides some distinct advantages in pumping certain types of materials.
They also offer reversible flows and can operate dry for long periods of time.
Robust and economical
Dry Lobe Pumps
Dry lobe pumps are similar to external gear pumps in operation in that fluid flows around the interior of the casing. Unlike external gear pumps, however, the lobes do not make contact. Lobe contact is prevented by external timing gears located in the gearbox. Pump shaft support bearings are located in the gearbox, and since the bearings are out of the pumped liquid, pressure is limited by bearing location and shaft deflection. Dry lobe pumps are frequently used in food applications because they handle solids without damaging the product. Particle size pumped can be much larger in lobe pumps than in other PD types. Since the lobes do not make contact, and clearances are not as close as in other PD pumps, this design handles low viscosity liquids with diminished performance. Loading characteristics are not as good as other designs, and suction ability is low. High-viscosity liquids require reduced speeds to achieve satisfactory performance. Reductions of 25% of rated speed and lower are common with high-viscosity liquids.
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Dry Lobe Pumps, Pumps, Pumps
Ebara EV-A Dry Lobe Pump
Starting at: $8,100.00Starting at: $7,897.50Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Dry Lobe Pumps, Pumps, Pumps
Ebara EV-SA20 Dry Lobe Pump
$17,800.00$16,100.00Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Dry Lobe Pumps, Pumps, Pumps
Edwards iXL120 Semiconductor Dry Pump
Original price was: $23,634.00.$21,888.00Current price is: $21,888.00. -
Dry Lobe Pumps, Pumps, Pumps
Edwards nXRi Dry Lobe Pump
Starting at: $21,723.00Starting at: $17,378.40Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
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Parts
Leybold EcoDry NEMA Cable
Starting at: $80.34Starting at: $74.72Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Pumps, Pumps
Leybold EcoDry Plus Multi-Stage Roots Pump
Starting at: $14,719.73Starting at: $12,953.36Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
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Pfeiffer ACP Series Dry Lobe Pumps
Starting at: $10,483.56Starting at: $8,386.85Select options This product has multiple variants. The options may be chosen on the product pageQuick View
Flow is relatively independent of changes in process pressure, so output is constant and continuous.
Dry running
The only factor, aside from slip (mentioned later), that determines the amount of fluid being pumped is the speed at which the lobes turn (i.e., the pump’s operating speed, not the motor’s RPMs).
Dry lobe pumps can be used in many industrial applications that need coarse or fine vacuum.
Most dry lobe pumps use gearboxes to increase or decrease the operating speed.
Two non contacting triple lobed rotary lobe rotors rotate against each other in the compression room.
Modular design
They are also used to handle slurries, pastes, and a wide variety of other liquids.
What type of application use dry lobe pumps?
What are the advantages of our dry lobe pumps?
Dry Lobe Pumps, are dry running positive displacement pumps.
Rotary lobe pumps range from industrial designs to sanitary designs.
Dry lobe pumps deliver a defined volume of fluid for each cycle of operation (i.e., each turn of the lobes).
These pumps offer a variety of lobe options including single, bi-wing, tri-lobe, and multi-lobe.