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Dolphin LR 0700 / 1190 A

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.

The Dolphin LR 0700 / 1190 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
Want to know more?
Contact us directly (Busch Turkey):
Get in contact or +90 (0)216 3100573

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 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 0700 / 1190 A
Dolphin LR 0700 / 1190 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 0700 A Dolphin LR 1190 A
Nominal pumping speed 4920 – 7000 m³/h 6700 – 11900 m³/h
Ultimate pressure 33 hPa (mbar) 33 hPa (mbar)
Nominal motor rating 110 / 132 / 160 / 185 / 200 kW 160 / 160 / 185 / 220 / 280 / 355 kW
Nominal motor speed 330 / 372 / 420 / 472 / 490 min-1 266 / 298 / 330 / 372 / 420 / 472 min-1
Noise level (ISO 2151) < 85 dB(A) < 85 dB(A)
Weight approx. 3750 kg 5390 kg
Dimensions (L x W x H) 2020 x 1350 x 1865 mm 2258 x 1550 x 2160 mm
Gas inlet / outlet DN 300 PN 10 / DN 300 PN 10 DN 350 PN 10 / DN 350 PN 10

Technical Specifications

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 0700 / 1190 A
Dolphin LR 0700 / 1190 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 0700 A Dolphin LR 1190 A
Nominal pumping speed 4920 – 7000 m³/h 6700 – 11900 m³/h
Ultimate pressure 33 hPa (mbar) 33 hPa (mbar)
Nominal motor rating 110 / 132 / 160 / 185 / 200 kW 160 / 160 / 185 / 220 / 280 / 355 kW
Nominal motor speed 330 / 372 / 420 / 472 / 490 min-1 266 / 298 / 330 / 372 / 420 / 472 min-1
Noise level (ISO 2151) < 85 dB(A) < 85 dB(A)
Weight approx. 3750 kg 5390 kg
Dimensions (L x W x H) 2020 x 1350 x 1865 mm 2258 x 1550 x 2160 mm
Gas inlet / outlet DN 300 PN 10 / DN 300 PN 10 DN 350 PN 10 / DN 350 PN 10

Accessories and Spare Parts

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

Want to know more?
Contact us directly (Busch Turkey):
+90 (0)216 3100573 Get in contact

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