DOLPHIN series (BUSH)

DOLPHIN are single or double stage liquid ring vacuum pumps. DOLPHIN are Busch's robust liquid ring vacuum pumps. These series stand for decades of experience and further developments of liquid ring vacuum pumps.

Suitable for sensitive or hazardous gases due to almost isothermal compression.

In the two-stage versions, the pumped medium is compressed again in order to be able to achieve higher negative pressures. Operation as a compressor is possible.

They are the perfect solution for demanding applications. For example for the evacuation of saturated gases and vapours. The single-level versions compress once.

The DOLPHIN series includes a large variety of sizes and assemblies: single or two-stage, with a directly flanged motor or mounted on a base plate, vacuum pumps and compressors.

Do not hesitate to contact us for more information:

e-mail: info@ehrler-beck.com

phone: +49 (0) 7159 / 4085-0

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DOLPHIN LA/LB liquid ring vacuum pumps

DOLPHIN LA are single stage vacuum pumps while DOLPHIN LB have two stages for higher vacuum.

  • High steam and particle tolerance

  • For harsh process conditions

  • Various designs and sizes

  • Various operating liquids possible

pump model Nominal pumping speed 50Hz Nominal pumping speed 60Hz final pressure Rated motor power 50Hz Rated motor power 60Hz weight approx.
DOLPHIN LA 0053 A 50 60 130 1,5 2,2 47
DOLPHIN LA 0103 A 100 135 130 4,0 4,0 52
DOLPHIN LA 0143 A 140 190 130 4,0 5,5 57
DOLPHIN LA 0224 A 220 270 130 5,5 7,5 94
DOLPHIN LA 0325 A 320 350 150 11,0 15,0 159
DOLPHIN LA 0435 A 430 500 150 11,0 15,0 159
DOLPHIN LA 0475 A 470 570 130 18,5 22,0 210
DOLPHIN LA 0756 A 750 840 130 22,0 30,0 306
DOLPHIN LA 0906 A 900 1100 130 30,0 37,0 338
DOLPHIN LA 1157 A 1150 950-1380 130 30,0 30 – 45 575
DOLPHIN LA 1507 A 1500 1350-1800 130 45,0 37 – 55 638
DOLPHIN LA 1807 A 1800 1090-2050 130 50,0 45 – 75 701
DOLPHIN LA 1908 A 1900 2250 130 75,0 90,0 1445
DOLPHIN LA 2408 A 2400 2600 130 75,0 110,0 1610
DOLPHIN LA 2808 A 2800 3150 130 90,0 150,0 1770
DOLPHIN LA 3809 A 2600 – 3600 3400-3800 130 75 – 110 90 – 132 2030
DOLPHIN LA 5109 A 3600-4700 4400-5100 130 90 – 132 110 – 150 2150
DOLPHIN LB 0063 A 60 65 33 3,0 4,0 77
DOLPHIN LB 0113 A 110 120 33 4,0 4,0 78
DOLPHIN LB 0144 A 140 180 33 4,0 5,5 103
DOLPHIN LB 0184 A 180 225 33 5,5 7,5 119
DOLPHIN LB 0265 A 260 325 33 7,5 11,0 165
DOLPHIN LB 0355 A 350 400 33 11,0 15,0 183
DOLPHIN LB 0425 A 420 500 33 15,0 15,0 194
DOLPHIN LB 0526 A 520 580 33 18,5 22 – 30 264
DOLPHIN LB 0726 A 720 770 33 22,0 30 – 37 278
DOLPHIN LB 0857 A 850 1000 33 30,0 37,0 510
DOLPHIN LB 1207 A 1200 1380 33 37,0 55,0 600
DOLPHIN LB 1507 A 1500 1690 33 45,0 75,0 685
DOLPHIN LB 1757 A 1750 2000 33 75,0 90,0 770
DOLPHIN LB 2108 A 2100 2300 33 55,0 90,0 1526
DOLPHIN LB 2508 A 2500 3080 33 75,0 110,0 1664
DOLPHIN LB 3008 A 3000 3200 33 90,0 150,0 1800
DOLPHIN LB 3108 A 3100 3500 33 110,0 150,0 2090
DOLPHIN LB 3809 A 2500 – 3800 2500 – 3800 33 90 – 150 90 – 150 2200
DOLPHIN LB 4409 A 2600 – 4400 2600 – 4400 33 90 – 185 90 – 185 2340

DOLPHIN LG/LR liquid ring vacuum pumps

DOLPHIN LG/LR are Busch's largest liquid ring vacuum pumps.

  • Extremely high vapor and particle tolerance

  • For harsh process conditions

  • Various sizes and designs

  • Various operating liquids possible

pump model Nominal pumping speed 50Hz Nominal pumping speed 60Hz final pressure Rated motor power 50Hz Rated motor power 60Hz weight approx.
DOLPHIN LR 0110 A 570-960 570-960 33 18,5 – 45 18,5 – 45 454
DOLPHIN LR 0140 A 840-1430 840-1430 33 30 – 55 30 – 55 511
DOLPHIN LR 0210 A 1175-2100 1175-2100 33 30 – 75 30 – 75 910
DOLPHIN LR 0300 A 1670-3010 1670-3010 33 45 – 110 45 – 110 1025
DOLPHIN LR 0420 A 2250 – 3830 2250 – 3830 33 55 – 132 56 – 132 1572
DOLPHIN LR 0580 A 2900-5300 2900-5300 33 75 – 185 76 – 185 2233
DOLPHIN LR 0700 A 4920 7000 33 110 – 200 110 – 200 3750
DOLPHIN LR 1190 A 6700 11900 33 160 – 355 160 – 355 5390
DOLPHIN LR 1560 A 9500 15600 33 220 – 450 220 – 450 8340
DOLPHIN LR 2200 A 14100 22000 33 355 – 600 355 – 600 12000
DOLPHIN LG 0890 A 6000 8900 160 132 220 3880
DOLPHIN LG 1200 A 7650 12000 160 160 280 5760
DOLPHIN LG 1910 A 11550 19100 160 220 500 8930
DOLPHIN LG 2680 A 16160 26800 160 355 650 12750

DOLPHIN LM/LT liquid ring vacuum pumps

Robust functional principle with modern design.

  • High steam and particle tolerance

  • For harsh process conditions

  • universal flanges

  • Various designs and sizes

  • Easy maintenance

DOLPHIN LN liquid ring vacuum pumps

DOLPHIN LA are the perfect solution for flare gas recovery.

  • API 681 standard

  • ATEX certified

  • Minimal thermal expansion

  • Modular design

  • Easy cleaning with hot steam

  • Test run possible without equipment

  • Simple start function

DOLPHIN LX liquid ring vacuum pumps

DOLPHIN LX are the compact solution for demanding environments

  • Compact monobloc design

  • Extremely high vapor and particle tolerance

  • For harsh process conditions

  • Various sizes and designs

DOLPHIN VL liquid ring vacuum pumps

DOLPHIN VL liquid ring vacuum pumps are the complete solution

  • Unit mounted on base frame

  • Operational liquid separator

  • system control

  • Wide range of sizes

  • Continuous flow, partial or full recirculation system

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