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DOLPHIN LA 3809/5109 A

Our Dolphin LA range of liquid ring vacuum pumps are well suited for wet and corrosive applications. They combine the benefits of high efficiency from a compact rugged machine, and reduced running cost from a competitive product.

Features

  • Suction capacity from 35 cfm to over 3000 cfm
  • Ultimate pressure to 100 torr (26 HgV)
  • Available in a wide range of materials
  • Minimal moving/contacting parts allowing ease of service and
    maintenance
  • Single mechanical seals standard
  • Low vibration and noise level
  • Reliability
  • ANSI flanges and NEMA motors
  • Some models are directly interchangeable with other brands
  • Low heat emission
  • Oil free discharge

Dolphin – robust and compact. Ideal for difficult applications.

Dolphin – robust and compact. Ideal for difficult applications.

Would you like to know more?
Contact us directly (Busch United States):
+1 757 463 7800 Get in contact

Technical Specifications

Technical specifications
Liquid ring pumps operate with only one moving part, the impeller shaft assembly. The impeller is mounted eccentrically relative to it’s casing. The liquid ring is formed by the service liquid (normally water) rotating concentrically in it’s casing. Process gas enters through the suction port, travels between the impeller blades and is compressed prior to exhausting through the discharge port along with a quantity of service liquid.

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

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data DOLPHIN LA 3809 A DOLPHIN LA 5109 A
Nominal pumping speed 2304 ACFM 3096 ACFM
Ultimate pressure 100 Torr 100 Torr
Nominal motor rating 200 HP 200 HP
Nominal motor speed 700 RPM 700 RPM
Noise level (ISO 2151) 85 dB(A) 85 dB(A)
Weight approx. 4299 Lbs. 4519 Lbs.
Dimensions (L x W x H) 65 9/16 x 37 ½ x 55 1/8 inches 70 ½ x 37 ½ x 55 1/8 inches
Gas inlet / outlet (ANSI) 10" / 10" inches 10" / 10" inches

Technical Specifications

Technical specifications
Liquid ring pumps operate with only one moving part, the impeller shaft assembly. The impeller is mounted eccentrically relative to it’s casing. The liquid ring is formed by the service liquid (normally water) rotating concentrically in it’s casing. Process gas enters through the suction port, travels between the impeller blades and is compressed prior to exhausting through the discharge port along with a quantity of service liquid.

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

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data DOLPHIN LA 3809 A DOLPHIN LA 5109 A
Nominal pumping speed 2304 ACFM 3096 ACFM
Ultimate pressure 100 Torr 100 Torr
Nominal motor rating 200 HP 200 HP
Nominal motor speed 700 RPM 700 RPM
Noise level (ISO 2151) 85 dB(A) 85 dB(A)
Weight approx. 4299 Lbs. 4519 Lbs.
Dimensions (L x W x H) 65 9/16 x 37 ½ x 55 1/8 inches 70 ½ x 37 ½ x 55 1/8 inches
Gas inlet / outlet (ANSI) 10" / 10" inches 10" / 10" inches

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