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Dolphin LR 1560 / 2200 A

The Dolphin LR 1560 / 2200 A belong to the Busch product family of proven Dolphin liquid ring vacuum pumps. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our Dolphin LR series type page.

Series Type Page Dolphin LG / LR
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Get in contact or +44 (0)1952 67 74 32

Dolphin LR – robust and high capacity. Ideal for demanding applications, including saturated vapour loads.

Dolphin LR – robust and high capacity. Ideal for demanding applications, including saturated vapour loads.


Technical Specifications

Dolphin LR 1560 / 2200 A

Dolphin LR is a series of single-stage liquid ring vacuum pumps. An eccentrically mounted impeller rotates in a housing partially filled with operating fluid. The impeller blades dip into the fluid, and the centrifugal force exerted by their rotation forms a so-called liquid ring within the housing.


The pumped medium is transported in the spaces between the blades and the liquid ring. The eccentric rotation of the impeller alters the volume of these spaces, causing gas to be drawn in, compressed and expelled.

Dimensional Drawing Dolphin LR 1560 / 2200 A
Dolphin LR 1560 / 2200 A

Pumping speed

Dry air at 20 °C. Tolerance: - 5%, in accordance with HEI and Pneurop 6612

50 Hz 60 Hz
Pumping speed
Technical data Dolphin LR 1560 A Dolphin LR 2200 A
Nominal pumping speed m³/h 9500 – 15600 14100 – 22000
Ultimate pressure hPa (mbar) 33 33
Nominal motor rating kW 220 / 250 / 280 / 315 / 400 / 450 355 / 400 / 400 / 500 / 600
Nominal motor speed min-1 236 / 266 / 298 / 330 / 372 / 398 210 / 236 / 266 / 298 / 330
Noise level (ISO 2151) dB(A) < 85 < 85
Weight approx. kg 8340 12000
Dimensions (L x W x H) mm 2512 x 1785 x 2560 2891 x 2065 x 2965
Gas inlet / outlet DN 400 PN 10 / DN 400 PN 10 DN 500 PN 10 / DN 500 PN 10

Accessories and Spare Parts

  • Motorized pumpsets with gearbox
  • Partial or total recirculation systems
  • Cavitation protection
  • Gas ejector
  • Non-return valves
  • Vacuum relief valves


Want to know more?
Contact us directly (Busch United Kingdom):
+44 (0)1952 67 74 32 Get in contact

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