Welch® DuoSeal Belt-Drive Vacuum Pumps

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from $1,890.00 $1,865.00

SKU DESCRIPTION ULTIMATE PRESSURE FREE AIR DISPLACEMENT ELECTRICAL QUANTITY PRICE ADD TO CART
variant 1400B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 0.9 cfm (25 L/min) 115V, 60Hz 1 Each
$2,170
$2,094
variant 1399B-01 DuoSeal Belt Drive Vacuum Pump 1.5 x 10-2 Torr (0.019 mbar) 1.2 cfm (35 L/min) 115V, 60Hz 1 Each
$1,890
$1,865
variant 1405B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 3.2 cfm (90 L/min) 115V, 60Hz 1 Each
$2,945
$2,726
variant 1402B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 5.6 cfm (160 L/min) 115V, 60Hz 1 Each
$3,140
$2,885
variant 1376B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 10.6 cfm (300 L/min) 115V, 60Hz 1 Each
$4,450
$3,954
variant 1397B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 17.7 cfm (500 L/min) 115V, 60Hz 1 Each
$5,970
$5,194
variant 1374B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 23 cfm (650 L/min) 115V, 60Hz 1 Each
$7,150
$6,157

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Key Features

  • High contamination tolerance
  • Ultimate vacuum <0.001 Torr
  • Low RPM for long service life

Suggested Applications

  • Rotary Evaporator
  • Vacuum Oven

Specifications

Model Number 1400 1399 1405 1402 1376 1397 1374
Applications Vacuum Manifolds, (Schlenk Lines), High boiling point evaporations (to 195 deg. C), Glove boxes, General laboratory. Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Vacuum Ovens, Glove Boxes, General Laboratory Vacuum
Type Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump Belt-Drive Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz 0.9(25) 1.2(35) 3.2(90) 5.6(160) 10.6(300) 17.7(500) 23(650)
Ultimate Pressure 1 x 10-4(0.00013) 1.5 x 10-2(0.019) 1 x 10-4(0.00013) 1 x 10-4(0.00013) 1 x 10-4(0.00013) 1 x 10-4(0.00013) 1 x 10-4(0.00013)
Pump RPM 580 750 525 525 525 400 510
Oil Capacity 0.62(0.59) 0.5(0.47) 2.25(2.1) 2.25(2.1) 2.5(2.4) 1.25(1.2) 1.25(1.2)
Motor Horsepower (watts) 1/3(250) 1/3(250) 1/2(370) 1/2(370) 1(750) 1(750) 1-1/2(1120)
Adjustable Vac. / Gas Ballast Yes No Yes Yes Yes Yes Yes
Tubing Needed 7/16(11) 7/16(11) 7/16(11) 13/16(21) 13/16(21) 1-5/8(41) 1-5/8(41)
Intake Thread NPT 3/4-20 3/4-20 1-20 1-20 1-20 1.75-20 1.75-20
Exhaust Thread NPT 3/4/20 3/4/20 1-20 1-20 1-20 1.75-20 1.75-20
Overall Dimensions LxWxH in. (cm) 17.8x9x12.6 (45.1x32.1x31.8) 17x9x10 (43.x22.9x25.42) 20x12x15 (51x30.5x60) 20x12x15 (51x30.5x60) 20x14.1x15.4 (51x35.9x39) 26x13.7x18.8 (66x34.8x47.6) 26x13.7x18.8 (66x34.86x47.6)
Ship Weight 70(31.8) 62(28.2) 132(60) 132(60) 180(81.8) 213(96.8) 215(97.7)
Shipping Carton Dimensions LxWxH in. (cm) 20.5x13.8x14.5 (52.1x35.1x36.8) 20.5x13.8x14.5 (52.1x35.1x36.8) 22.5x15.5x19.5 (57.2x39.4x49.5) 22.5x15.5x19.5 (57.2x39.4x49.5) 22x18x19 (55.9x45.7x48.3) 27.3x18x22 (69.3x45.7x55.9) 27.3x18x22 (69.3x45.7x55.9)