• 10 in stock

  • Dowty Seal, Pfeiffer, UNO, DUO, Part# 4088022 $44.66

    This Dowty Seal (Part #4088022) is a replacement part made for two popular Pfeiffer pump models: the UNO 1.5A and the DUO 1.5A . A Dowty seal is a special type of seal. It has a rubber ring bonded to a metal outer ring. This design creates a very tight, reliable seal that stops oil from leaking out and air from getting in . If you are rebuilding your small Pfeiffer pump or fixing a leak, this is exactly the part you need.

  • Leak Nozzle, Pfeiffer, UNO, DUO, Part# 220170A $69.93

    This Leak Nozzle (Part #220170A) is a component for your Pfeiffer vacuum pump . It is used on Pfeiffer pumps within the UNO and DUO families . Its job is to control the flow of gases inside the pump. Think of it like a small but important passageway. It manages and directs gas movement. This helps your pump run efficiently and reliably . If your pump is not performing well, a worn or clogged leak nozzle could be the reason. This is a replacement part.

  • Locking Cap, Pfeiffer, UNO, DUO, Part# 192126 $5.25

    This Locking Cap (Part #192126) is a replacement component for your Pfeiffer vacuum pump. Its job is to securely fasten and lock certain internal parts in place . Think of it like a specialized nut or retainer. It keeps components from moving or loosening during pump operation. This locking cap is designed specifically for the Pfeiffer UNO 1.5A and DUO 1.5A pump models . If you are rebuilding your pump, you will likely need this part. In fact, it is included in the Minor Repair Kit for these pumps .

  • O-ring, 15 x 5 mm – Viton, Part# 4070262 $4.48

    This is the Pfeiffer Part# 4070262, a 15 x 5 mm O-ring made of high-performance Viton (FKM) rubber. It is specifically designed to replace the worn seal in Pfeiffer UNO 1.5A and DUO 1.5A vacuum pumps . Keep your vacuum pump leak-free and running efficiently with this direct-fit, durable seal.

  • O-ring, 2.2 x 1 mm – Viton, Part# 4070015 $4.83

    This Viton O-Ring (Part #4070015) is a small but critical sealing component for your Pfeiffer vacuum pump . It measures 2.2 mm (inner diameter) x 1 mm (cross section) . Made from Viton, a high-performance synthetic rubber, this tiny O-ring creates a tight, reliable seal in a precise location within your pump.

    This O-ring is designed for the Pfeiffer UNO 1.5A and DUO 1.5A pump models . If you are rebuilding your pump, this O-ring is a must-have part. In fact, it is included as a standard component in the Minor Repair Kit (Part # 080010) for these pumps .

  • 10 in stock

  • Oil Box Gasket, Cork, Pfeiffer, UNO, DUO, Part# 192124 $5.25

    This Cork Oil Box Gasket (Part #192124) is a replacement seal for your Pfeiffer vacuum pump. It fits between the oil box (or oil casing) and the main pump body . Its job is simple but very important. It keeps the oil where it belongs. It stops leaks. It also prevents outside air from getting into the pump. This gasket is made for the Pfeiffer UNO 1.5A and DUO 1.5A pump models . If you see oil leaking from your pump, this gasket might be the problem. Replace it during your next maintenance.

  • Plate Valve Nib, Pfeiffer, UNO, DUO, UNO1.5A, DUO1.5A, Part# 192122 $13.52

    This is the Pfeiffer Part# 192122 Plate Valve Nib. It is a replacement part made from durable Viton material . This valve nib is used on many Pfeiffer UNO and DUO pump models including UNO1.5A, DUO1.5A, DUO5, DUO5C, DUO6, DUO6M, DUO10, DUO10C, DUO11, DUO11M, and DUO11MC . You will also find this part included inside minor repair kits and overhaul kits for these pumps . Keep your pump’s valve system working right with this direct-fit component.

  • Repair Kit, Pfeiffer, Part# 80010, Part# 80010 $148.40

    This is the Pfeiffer Part# 80010 Minor Repair Kit for the UNO 1.5A and DUO 1.5A vacuum pumps . This maintenance kit includes essential components such as the sight glass, shaft seal, oil box gasket, valve plate, vane springs, centering ring, and O-rings . Designed for seamless compatibility, this kit provides a dependable solution for routine maintenance and helps restore your pump’s performance.

  • Shaft Seal, Pfeiffer, UNO, DUO, Part# 4083174 $6.44

    This Shaft Seal (Part #4083174) is a replacement part made for two popular Pfeiffer pump models: the UNO 1.5A and the DUO 1.5A . Its main job is to seal the rotating shaft where it enters the pump body. This stops oil from leaking out and keeps air from getting in. If you are rebuilding your small Pfeiffer pump or fixing a leak, this is the part you need. It is also known by the cross-reference number SV0004 and is included in the official repair kit for these pumps .

  • 10 in stock

  • Spring, Pfeiffer, UNO, DUO, UNO1.5A, DUO1.5A, Part# 3838132SV $4.55

    This spring (Part #3838132SV) is a replacement part used across a wide range of Pfeiffer UNO and DUO series vacuum pumps. It is a critical component found in valve and flap mechanisms, including models like UNO1.5A, DUO1.5A, UNO35, DUO35, DUO65, DUO11, and DUO6 . If you are rebuilding your pump or restoring its performance, this spring is an essential part of the job. It is also known by the cross-reference number B0042 .

  • Valve Flap, Pfeiffer, UNO, DUO, Part# 192348 $19.11

    This Valve Flap (Part #192348) is a replacement part made specifically for Pfeiffer UNO 1.5A and DUO 1.5A vacuum pumps . Its main job is to regulate the flow of gases inside your pump, which is essential for achieving and maintaining the right vacuum pressure . If you are rebuilding your pump, you will need one of these valve flaps for a complete repair .

  • Vane – GX, Pfeiffer, Part# 192109G $39.69

    This GX Vane (Part #192109G) is a replacement part made specifically for Pfeiffer UNO1.5A and DUO1.5A vacuum pumps . Made from durable high-strength GX material, this vane helps maintain a tight seal inside your pump, which is essential for creating strong vacuum pressure. If you are rebuilding your UNO1.5A or DUO1.5A pump, this vane is a critical component for a complete overhaul .

  • Vane Spring, Pfeiffer, UNO, DUO, Part# 3836534 $3.64

    This Vane Spring (Part #3836534) is a replacement part made specifically for Pfeiffer UNO 1.5A and DUO 1.5A vacuum pumps . Its job is to provide the necessary tension and support for the vanes inside your pump . This allows the vanes to move freely while maintaining proper contact with the pump’s rotor . If you are rebuilding your pump, you will need four of these springs for a complete repair 

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