Welch Vacuum 1397 Duoseal Belt Drive - Manual (Page 13)

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Section 5: QUICK REFERENCE CHARTS
Motor Options 1374 1397
Wired for 115V, 60Hz, 1Ph 1374B-01 1397B-01
Wired for 230V, 60Hz, 1Ph N/A N/A
Wired for 230V, 50Hz, 1Ph N/A 1397C-03
Wired for 230V, 60Hz, 3Ph 1374M-01 1397M-01
Wired for 230V, 50Hz, 3Ph N/A N/A
Specifi cations 1374B-01 1397B-01
Free Air Displacement, L/M (CFM) 650 (23) 500 (17.7)
Gas Ballast Yes Yes
Ultimate Pressure, Torr (mbar) 1 (1.3)x10-4 1 (1.3)x10-4
Rotational Pump (RPM) 510 400
Oil Capacity, quarts (Liters) 1.25 (1.2) 1.25 (1.2)
Net Wt. Unmounted Pump, lb (Kg) 138 (63) 138 (63)
Net Wt. Mounted Pump, lb (Kg) 218 (100) 206 (93)
Tubing Needed (I.D. Inches) 1 5/8 ” 1 5/8 ”
Standard Flange Size NW40 NW40
Intake Thread Size 1 3/4 -20 1 3/4 -20
Exhaust Thread Size 1 3/4 -20 1 3/4 -20
Electrical Requirements 1 115/230V 115/230V
Electrical Requirements 2 60Hz 60Hz
Electrical Requirements 3 1 Phase 1 Phase
Replacement Parts Part No.
Shaft Seal: Lip Seal 1401F-01
Shaft Seal: Mechanical Seal 1401F
Dust Cap for Exhaust 41-1501
Air Filter Screen 41-0937
Intake Chamber Cover Gasket 41-1495
Oil Case Gasket 41-1496
Drain Plug 61-2278
Oil Window 41-3453
Large Vane 41-1477
Small Vane 41-1487
Large Vane Spring 41-1488
Small Vane Spring 41-1304
Large Vane Spring Holder 41-1489
Repair Kits
Minor Repair Kit 1397K-07
Major Repair Kit 1397K-08
Base and Belt Guard Kit 1371F
Replacement Parts Part No.
Small Vane Spring Holder 41-0696
Shaft 41-1484
Upper Exhaust Valve 41-2161
Lower Exhaust Valve N/A
Pressure Release Valve 41-0992
Optional Exhaust Filter 1417P-10
Optional Exhaust Filter
Element 1417G
Pump Pulley 41-2074
Standard Belt 1405A
Standard Hose Barb Fitting 1393K
Standard Flange Adapter
Fitting 1393G