Product Description
Used on Pfeiffer DUO 250A,UNO 250AFor complete kit content details see bill of materials below
| Part Number | Description | Quantity |
|---|---|---|
| 02106062 | O-ring, 107.32 x 5.33mm - Viton, Part# 02106062 | 4 |
| 320538 | O-ring, 85 X 5mm - Viton, Part# 320538 | 1 |
| 4070621 | O-ring, 38 x 3.0mm - Viton, Part# 4070621 | 4 |
| 4070420 | O-ring, 24 x 2.5mm - Viton, Part# 4070420 | 5 |
| PL23970504 | O-ring, 55 x 5 mm - Viton, Part# PL23970504 | 2 |
| 4070333 | O-ring, 19 x 2.5 mm - Viton, Part# 4070333 | 2 |
| 380050 | Ring Seat, Valve, Pfeiffer, DUO, UNO, DUO250A, UNO250A, Part# 380050 | 1 |
| 300215 | Gasket, Case, Cork, UNO/DUO 250A, Pfeiffer, Part# 300215 | 1 |
| 300214 | Gasket, ring, Pfeiffer, DUO, UNO, DUO250A, DUO255M(IndexC), UNO250A, Part# 300214 | 2 |
| 38250019 | Dowty Seal, 12. 7 X 18 X 1. 5mm, Pfeiffer, DUO, UNO, Part# 38250019 | 1 |
| 320525 | O-ring, 35x 5 mm - Viton, Part# 320525 | 2 |
| 48655900 | O-ring, 44 x 3 mm - Viton, Part# 48655900 | 1 |
| 4070542 | O-ring, 32 x 3mm - Viton, Part# 4070542 | 2 |
| PL23970129 | O-Ring,Viton,65 X 5 MM Part# PL23970129 | 2 |
| 48656700 | O-ring, 140 x 5 mm - Viton, Part# 48656700 | 1 |
| PL23970419 | O-ring, 125 x 5 mm - Viton, Part# PL23970419 | 3 |
| 310152 | Seal, Shaft, Single Lip, Pfeiffer, DUO, UNO, Part# 310152 | 2 |
| 4070088 | O-ring, 6 x 2.2 mm - Viton, Part# 4070088 | 7 |
| 4070259 | O-ring, 15 x 2.5 mm - Viton, Part# 4070259 | 3 |
Oil Sealed, Two Stage Rotary Vane Pumps
- DUO 120A standard version
- DUO 125 (Index B) standard version
- DUO 125M magnetic coupling
- UNO/DUO 250A standard version
- DUO 255M (Index C) magnetic coupling
* MC version Corrosive gas application (with magnetic coupling)
Oil Change:
The maintenance schedule of operating fluid depends on application and location of pump. The oil must be changed if:
- Ultimate pressure is no longer attainable
- Oil appears contaminated, milky, or cloudy when viewed through sight glass
- Oil is discolored
Oil Capacity:
- DUO 120 - 13 liter
- DUO 125 - 14 liter
- UNO 250 - 30 liter
- DUO 250 - 23 liter
- DUO 255 - 25 liter
Maintenance Intervals:
Daily:
- Check operating fluid levels
- Check for leaks
As required (at least annually):
- Change operating fluid
- Disassemble casing, sight glass and pumping system and clean casing outside (without cleaning agent)
- Clean gas ballast valve & silencer
- Clean motor fan cap
As required (at least every 2 years):
- Disassemble the pump, clean & exchange seal and wearing parts
As required (at least every 4 years):
- Carry out work in accordance with maintenance and additionally
- Change vanes
- Change valves, springs, and sight glass
- Change silencer nozzle
- Check coupling and exchange is necessary
General product classifications
| Part Number Cross-Reference | PKE00016-T |
| Compatible Brands | Pfeiffer |
| Family | DUO |
| Compatible Pump Models | DUO250A UNO250A |
| Category | Repair Kits |
| Subcategory | Seal Kit |
| Country of origin | US |
