Welch® DuoSeal Belt-Drive Vacuum Pumps
Image SKU Description Ultimate Pressure Free Air Displacement Electrical Quantity Price Add to Cart
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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
$2,338
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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
$2,065
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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
$3,116
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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
$3,304
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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
$4,581
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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
$6,145
$6,054
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1374B-01 DuoSeal Belt Drive Vacuum Pump 1 x 10-4 Torr (0.00013 mbar) 23 cfm (650 L/min) 115V, 60Hz 1 Each
$7,355
$7,192
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Description

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)

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