Rebuilt Welch Duo-Seal Rotary Vane Pumps

Model	cfm	hp	Rebuilt
1374	23	1.5	$2,900
1375	35	2	$3,200
1376	11	1	$1,600
1380	-	-	$995
1395	71	5	$4,860
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	$975
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.

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	1.75-20	1-20		1.75-20
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	3/4-20	1-20
Weight, lbs(kg)	58(26)	112(51)