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DOLPHIN LA 1157–1807 A

Dolphin LA – Robust and compact. Ideal for demending applications.

Dolphin LA – Robust and compact. Ideal for demending applications.

The Dolphin LA 1157 - 1807 Abelong 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 LA series type page.

Series Type Page DOLPHIN LA
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Get in contact or +90 (0)216 3100573

Dolphin LA – Robust and compact. Ideal for demending applications.

Dolphin LA – Robust and compact. Ideal for demending applications.


Technical Specifications

Dolphin LA 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 socalled 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 LA 1157 - 1807 A
DOLPHIN LA 1157 - 1807 A
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data DOLPHIN LA 1157 A DOLPHIN LA 1507 A DOLPHIN LA 1807 A
Nominal pumping speed 1150 m³/h 1500 m³/h 1800 m³/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 30 kW 45 kW 50 kW
Nominal motor speed 980 min-1 980 min-1 980 min-1
Noise level (ISO 2151) 77 dB(A) 77 dB(A) 77 dB(A)
Weight approx. 575 kg 638 kg 701 kg
Dimensions (L x W x H) (1046-1231) x 480 x 800 mm (1146 - 1331) x 480 x 800 mm (1246-1431) x 480 x 800 mm
Gas inlet / outlet DN 125 KF / DN 125 KF DN 125 KF / DN 125 KF DN 125 KF / DN 125 KF

Technical Specifications

Dolphin LA 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 socalled 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 LA 1157 - 1807 A
DOLPHIN LA 1157 - 1807 A
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz
60 Hz
Pumping speed
Technical data DOLPHIN LA 1157 A DOLPHIN LA 1507 A DOLPHIN LA 1807 A
Nominal pumping speed 1150 m³/h 1500 m³/h 1800 m³/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 30 kW 45 kW 50 kW
Nominal motor speed 980 min-1 980 min-1 980 min-1
Noise level (ISO 2151) 77 dB(A) 77 dB(A) 77 dB(A)
Weight approx. 575 kg 638 kg 701 kg
Dimensions (L x W x H) (1046-1231) x 480 x 800 mm (1146 - 1331) x 480 x 800 mm (1246-1431) x 480 x 800 mm
Gas inlet / outlet DN 125 KF / DN 125 KF DN 125 KF / DN 125 KF DN 125 KF / DN 125 KF

Accessories and spare Parts

  • Liquid Separators

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

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