

Major Overhaul Kit - Pfeiffer DUO 1.6 / DUO 3
EUR 408.00
Used on Pfeiffer DUO1.6, DUO3
DUO 1.6 is a direct replacement for obsolete DUO 1.5
DUO 3 is a direct replacement for obsolete DUO 2.5
Both pumps are equipped with a high vacuum safety valve that closes the vacuum chamber tightly and vents the pump when the pump is at a standstill
Suitable for both low and medium vacuum applications
For exact kit contents see bill of materials below
DUO 1.6 is a direct replacement for obsolete DUO 1.5
DUO 3 is a direct replacement for obsolete DUO 2.5
Both pumps are equipped with a high vacuum safety valve that closes the vacuum chamber tightly and vents the pump when the pump is at a standstill
Suitable for both low and medium vacuum applications
For exact kit contents see bill of materials below
Added to Your Shopping Cart
Part Number | Description | Quantity | Qty in stock |
---|---|---|---|
300201 | Gasket, Pfeiffer, DUO, UNO, Part# 300201 | 1 | 6 |
4070065 | O-ring, 5 x 1.5 mm - Viton, Part# 4070065 | 3 | 22 |
4070088 | O-ring, 6 x 2.2 mm - Viton, Part# 4070088 | 2 | 34 |
4070321 | O - ring, 18 x 5.0 mm - Viton, Part# 4070321 | 3 | 26 |
4070259 | O-ring, 15 x 2.5 mm - Viton, Part# 4070259 | 2 | 34 |
320473 | O-ring, 16 x 1.5 mm - Viton, Part# 320473 | 1 | 9 |
320175 | O-ring, 22 x 1.5 mm - Viton, Part# 320175 | 1 | 2 |
320480 | O-ring, 40 x 2.5mm - Viton, Part# 320480 | 1 | 9 |
194109 | Sight Glass Gasket, Pfeiffer, DUO, UNO, DUO1.6, DUO3, Part# 194109 | 1 | 12 |
320485 | O-ring, 42 x 2.5 - Viton, Part# 320485 | 1 | 5 |
320481 | O-ring, 122 x 2.5 mm - Viton, Part# 320481 | 1 | 7 |
4070125 | O-ring, 8 x 2.0 mm - Viton, Part# 4070125 | 4 | 26 |
4070166 | O-ring, 10 x 2.5mm - Viton, Part# 4070166 | 1 | 5 |
220170A | Leak Nozzle, Pfeiffer, UNO, DUO, Part# 220170A | 1 | 6 |
360075 | Half Coupling, Pfeiffer, DUO, UNO, Part# 360075 | 1 | 4 |
580042 | Valve Flap, Round, Pfeiffer, DUO, UNO, DUO1.6, DUO3, DUO2.5, Part# 580042 | 1 | 4 |
490036 | Pressure Spring, Pfeiffer, Part# 490036 | 4 | 31 |
580043 | Valve Flap, Long, Pfeiffer, DUO, UNO, Part# 580043 | 1 | 1 |
580044 | Piston, Hydraulic, Pfeiffer, DUO, DUO 125, DUO 255M (Index C), Part# 580044 | 1 | 12 |
300166 | Felt Ring Pfeiffer, Part# 300166 | 1 | 6 |
230063 | Pfeiffer Vane, GX, Part# 230063 | 4 | 7 |
380045 | Valve Stop, Stainless, Pfeiffer, UNO, DUO, UNO6, Part# 380045 | 1 | 3 |
310061 | Shaft Seal, Viton - Single Lip, Pfeiffer, DUO, UNO, Part# 310061 | 1 | 6 |
750093 | Tube Pole Cap, Black- Pfeiffer, DUO, UNO, Part# 750093 | 1 | 7 |
300202 | Sealing ring-Pfeiffer DUO, UNO, Part# 300202 | 1 | 5 |
550046 | Sight Glass, Pfeiffer, UNO, DUO, Part# 550046 | 1 | 5 |
570002 | Plate Valve Assembly, Pfeiffer, Part# 570002 | 1 | 4 |
490041 | Ressort de pression, Pfeiffer, DUO, UNO, DUO2.5, DUO2.5C, Pièce# 490041 | 1 | 6 |
25908119 | STOPFEN, ÖLABLASS, RV-PUMPEN | 1 | 5 |
490046 | Druckfeder | 1 | 6 |
230077G | Lamelle – GX | 1 | 4 |
General product classifications
Compatible Brands | Pfeiffer |
Family | DUO |
Compatible Pump Models |
DUO1.6
DUO3 |
Category | Repair Kits |
Subcategory | Overhaul Kits |
Country of origin | US |
Manual page | PFEIFFER-79 |
Our Precision Plus Pfeiffer DUO 1.6 & DUO 3 Major Repair Kit is equivalent to the OEM Maintenance Kit and Vane Kit combined!
Pump Variants:
M versions – Magnetic coupling
- Duo 1.6 M
- Duo 3 M
Oil Capacity:
- DUO 1.6 = 0.4L
- DUO 3 = 0.4L
Oil Compatability:
Pfeiffer P3 is equivalent to Precision Plus UG20
Suggested Maintenance Schedule:
Daily:
- Visual inspection
- Check operating fluid level
- Check filter insert of external oil mist filter
As needed / Annually:
- Change operating fluid
- Disassemble casing, sight glass, and pumping system and clean casing outside (without cleaning agent)
- Clean gas ballast valve and silencer
- Clean the motor fan cap
As needed / Every 2 years:
- Minor Repair Kit
- Disassemble the pump, clean and exchange seals and wearing parts
As needed / Every 4 years:
- Major Repair Kit
- Change vanes
- Change valves, springs, and sight glass
- Change silencer nozzle
- Check coupling and exchange is necessary
- 5_Brochure_Precision plus.pdf - Brochure - American English
- 5_Brochure_PrecisionPlus_German.pdf - Brochure - German
- 3_LineCard_Rev12.pdf - Line Card - American English
- 3_LineCard_German_REV12.pdf - Line Card - German
- 3_LineCard_Korean_REV12.pdf - Line Card - Korean
- 3_LineCard_Portugese_REV12.pdf - Line Card - Portuguese (European)
- 3_LineCard_Spanish_REV12.pdf - Line Card - Spanish (European)