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Major Overhaul Kit - Pfeiffer DUO 1.6 / DUO 3

PKE02070T
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
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