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DOLPHIN LA 3809/5109 A

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

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

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.

Series Type Page DOLPHIN LA
Want to know more?
Contact us directly (Busch Germany):
Get in contact or +49 (0)7622 681-0

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 3809/5109 A
DOLPHIN LA 3809/5109 A
Pumping speed

Dry air at 20 °C. Tolerance: - 10%, in accordance with HEI and Pneurop 6612
 

50 Hz 60 Hz
Pumping speed
Technical data DOLPHIN LA 3809 A DOLPHIN LA 5109 A
Nominal pumping speed 2600 - 3600 m3/h 3600 - 4700 m3/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 75 - 110 kW 90 - 132 kW
Nominal motor speed 465 - 650 min-1 465 - 650 min-1
Noise level (ISO 2151) 85 dB(A) 85 dB(A)
Weight approx. 2030 kg 2150 kg
Dimensions (L x W x H) 1665 x 800 x 1400 mm 1790 x 800 x 1400 mm
Gas inlet / outlet DN 250 KF / DN 250 KF DN 250 KF / DN 250 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 3809/5109 A
DOLPHIN LA 3809/5109 A
Pumping speed

Dry air at 20 °C. Tolerance: - 10%, in accordance with HEI and Pneurop 6612
 

50 Hz
60 Hz
Pumping speed
Technical data DOLPHIN LA 3809 A DOLPHIN LA 5109 A
Nominal pumping speed 2600 - 3600 m3/h 3600 - 4700 m3/h
Ultimate pressure 130 hPa (mbar) 130 hPa (mbar)
Nominal motor rating 75 - 110 kW 90 - 132 kW
Nominal motor speed 465 - 650 min-1 465 - 650 min-1
Noise level (ISO 2151) 85 dB(A) 85 dB(A)
Weight approx. 2030 kg 2150 kg
Dimensions (L x W x H) 1665 x 800 x 1400 mm 1790 x 800 x 1400 mm
Gas inlet / outlet DN 250 KF / DN 250 KF DN 250 KF / DN 250 KF

Accessories and spare parts

  • Liquid Separators

Want to know more?
Contact us directly (Busch Germany):
+49 (0)7622 681-0 Get in contact

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