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DOLPHIN LA 0053–0143 A

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

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

The Dolphin LA 0053 - 0143 A belongs 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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Contact us directly (Busch United States):
Get in contact or 1-800-USA-PUMP

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 0053 - 0143 A
DOLPHIN LA 0053 - 0143 A
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data DOLPHIN LA 0053 A DOLPHIN LA 0103 A DOLPHIN LA 0143 A
Nominal pumping speed 50 m3/h 100 m3/h 140 m3/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 1.5 kW 4 kW 4 kW
Nominal motor speed 1450 min-1 1450 min-1 1450 min-1
Noise level (ISO 2151) 72 dB(A) 72 dB(A) 72 dB(A)
Weight approx. 47 kg 52 kg 57 kg
Dimensions (L x W x H) (399-574) x 250 x 320 mm (439-614) x 250 x 320 mm (479-654) x 250 x 320 mm
Gas inlet / outlet DN 40 KF / DN 40 KF DN 40 KF / DN 40 KF DN 40 KF / DN 40 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 0053 - 0143 A
DOLPHIN LA 0053 - 0143 A
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz
60 Hz
Pumping speed
Technical data DOLPHIN LA 0053 A DOLPHIN LA 0103 A DOLPHIN LA 0143 A
Nominal pumping speed 50 m3/h 100 m3/h 140 m3/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 1.5 kW 4 kW 4 kW
Nominal motor speed 1450 min-1 1450 min-1 1450 min-1
Noise level (ISO 2151) 72 dB(A) 72 dB(A) 72 dB(A)
Weight approx. 47 kg 52 kg 57 kg
Dimensions (L x W x H) (399-574) x 250 x 320 mm (439-614) x 250 x 320 mm (479-654) x 250 x 320 mm
Gas inlet / outlet DN 40 KF / DN 40 KF DN 40 KF / DN 40 KF DN 40 KF / DN 40 KF

Accessories and spare parts

  • Liquid Separators

Downloads

DOLPHIN LA 0053–0143 A

Want to know more?
Contact us directly (Busch United States):
1-800-USA-PUMP Get in contact

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