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Dolphin LB 0710 / 1011 A

Our Dolphin LB range of liquid ring two-stage 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 38 cfm to over 2500 cfm
  • Ultimate pressure of 25 torr (29 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.

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

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.

Available Options

  • Various materials of construction including 316 stainless steel,
    bronze, etc...
  • Base plate or pedestal mounting configurations
  • IEC motors
  • Metric connections
  • System configurations (once through, partial recovery, and
    total recovery)
  • Outboard bearing in place of standard inboard bearing
  • Packed gland seal or double mechanical seal


System Configurations
1. Once Through System - No Recovery

The service liquid comes from a fresh supply, passes only once through the pump and is discharged to an open drain.

2. Partial Recovery System
Within this system the service liquid is discharged to a vessel which allows separation of the gas and liquid. A portion of the discharged liquid is returned to the pump’s service fluid inlet together with a fresh liquid supply. This reduces the amount of fresh liquid required.

3. Total Recovery System
This system provides for total recirculation of the service liquid and is preferable when liquid is in short supply or where there is a risk of contamination. A heat exchanger is added to the system to remove the heat of compression prior to re-use of the service liquid.


Dolphin LB 0710/1011 A
Dolphin LB 0710/1011 A
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data Dolphin LB 0710 A Dolphin LB 1011 A
Nominal pumping speed ACFM 3004 - 4418 4359 - 6126
Ultimate pressure Torr 24.75 24.75
Nominal motor rating HP 214.6 - 422.4 268.2 - 476
Nominal motor speed RPM 410 - 590 335 - 485
Noise level (ISO 2151) dB(A) 87 87
Weight approx. Lbs. 8377 13007
Dimensions (L x W x H) inches 90 x 44 x 65 107 x 53 x 75
Gas inlet / outlet (ANSI) inches 60 Hz 8'' / 8'' 10'' / 10''

Downloads

Dolphin LB 0710 / 1011 A

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