Product Description
This Major Repair Kit designed for Welch DirecTorr vacuum pumps, particularly the 8920A model, is a comprehensive maintenance package meticulously assembled to address common wear and tear issues, ensuring the continued efficient and reliable operation of the vacuum pump. This Major Repair Kit includes a variety of components and materials chosen for their compatibility with the Welch DirecTorr 8920A pump. These components cover a wide range of maintenance needs, including seals, gaskets, bearings, and other critical parts. All components are manufactured with precision and adhere to the high standards required for vacuum pump maintenance. More information about our product can be found by downloading the pdf catalogue and documents below. This Major Repair Kit has Part# 8920AMRK.
General product classifications
| Part Number Cross-Reference | 23W-8920N-V |
| Compatible Brands | Welch |
| Family | DirecTorr |
| Compatible Pump Models | 8920A |
| Category | Repair Kits |
| Subcategory | Major Kit |
| Country of origin | US |
| Manual page | WELCH-109 |
| Part Number | Description | Quantity | Qty in stock |
|---|---|---|---|
| 612157A | O-ring, 3.68 x 1.78 mm - Viton, Part# 612157A | 1 | 89 |
| 612204A | Gas Ballast Spring, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 612204A | 1 | 97 |
| 411401D-01 | Shaft Seal Kit - 0.750", Welch, Part# 411401D-01 | 1 | 9 |
| 410624 | Woodruff Key, Cut, Fisher Scientific, Welch, Part# 410624 | 1 | 40 |
| 612231 | O-ring, Shaped ring - Viton, Part# 612231 | 1 | 9 |
| 619282A | O-ring, 7.65 x 1.78 mm - Viton, Part# 619282A | 1 | 22 |
| 619284A | O-ring, 24.99 x 3.53 mm - Viton, Part# 619284A | 1 | 32 |
| 619480A | Drip Pad, Felt, Welch, DirecTorr, Part# 619480A | 1 | 9 |
| 619526 | O-ring, 75.87 x 2.62 mm - Viton, Part# 619526 | 1 | 13 |
| 619527 | O-ring, 52.07 x 2.62 mm - Viton, Part# 619527 | 1 | 126 |
| 619560A | Exhaust Bypass Valve, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 619560A | 3 | 13 |
| 619561A | Exhaust Valve Spring, Fisher Scientific, Galileo, Varian - Agilent, Welch, Part# 619561A | 1 | 647 |
| 619582A | Valve, Bypass, Spring, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 619582A | 2 | 29 |
| 620211 | O-ring, 26.70 x 1.78 mm - Viton, Part# 620211 | 1 | 33 |
| 619616B | Vane, Intake - GX, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 619616B | 2 | 0 |
| 619609B | Pump Gasket, Beaded- Fisher Scientific, Maxima, DirecTorr, Part# 619609B | 1 | 15 |
| 619615A | Vane, Exhaust - GX - Fisher Scientific, Welch DirecTorr, Maxima, Part# 619615A | 2 | 28 |
| 612130A | O-ring, 17.12 x 2.62 mm - Viton, Part# 612130A | 1 | 16 |
| 612118A | Gas Ballast Valve, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 612118A | 1 | 9 |
| 417320 | O-ring, 10.77 x 2.62 mm - Viton, Part# 417320 | 1 | 140 |
| 413073 | Coupling Sleeve, Fisher Scientific, Welch, Maxima, DirecTorr, Part# 413073 | 1 | 1 |
| 413390 | Shaft Seal, 3/4", Welch, Maxima, DirecTorr, M8C, M12C, Part# 413390 | 1 | 16 |
| 413005 | O-ring, 4.47 x 1.78 mm - Viton, Part# 413005 | 1 | 38 |
