Rebuilt Welch Duo-Seal Rotary Vane Pumps

1402
Model cfm hp Rebuilt
1374 23 1.5 $2,900
1375 35 2 $3,200
1376 11 1 $1,600
1380 - - $1,000
1395 71 5 $4,875
1396 - - $2,300
1397 18 1 $2,450
1398 53 3 $4,200
1400 0.9 1.3 $725
1402 5.6 0.5 $1,300
1403 3.5 0.5 $950
1404 - - $950
1405 2.1 0.5 $1,050
1410 - - $750

The Welch web page has information for the 1402 and other pumps. If the requested voltage is not in stock then we will purchase a new motor and split the cost with you. They run on various vacuum pump oils. We also offer repair service.


2021i

Specifications 1374 1376 1380 1397
Free Air Displacement, cfm (l/min) 23(650) 10.6(300) 5.6(160) 17.7(500)
Ultimate Pressure (Torr) 1 x 10-4 1.5 x 10-2 1 x 10-4
Gas Ballast Yes
Pump RPM 510 525 535 400
Motor Horsepower 1-1/2 1 1/2 1
Oil Capacity, qt. (liters) 1.25(1.2) 2.5(2.4) 3.7(3.5) 1.25(1.2)
Tubing Needed, I.D. in. 1-5/8 13/16 1-5/8
Intake, Nipple Thread 1.75-20 1-20 1.75-20
Exhaust, Thread Type
Weight, lbs(kg) 220(100) 156(71) 116(53) 205(93)

Specifications 1400 1402 1405
Free Air Displacement, cfm (l/min) 0.9(25) 5.6(160) 3.2(91)
Ultimate Pressure (Torr) 1 x 10-4
Gas Ballast Yes
Pump RPM 580 525
Motor Horsepower 1/3 1/2
Oil Capacity, qt. (liters) 0.62(0.59) 2.25(2.1)
Tubing Needed, I.D. in. 7/16 13/16 7/16
Intake, Nipple Thread 3/4-20 1-20
Exhaust, Thread Type
Weight, lbs(kg) 58(26) 112(51)

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