$3.71
This Viton O-Ring (Part #320174) is a critical sealing component for your small Pfeiffer DUO vacuum pump . It measures 16 mm (inner diameter) x 1.0 mm (cross section). Made from Viton, a high-performance synthetic rubber, this O-ring creates a tight, reliable seal. It prevents leaks and keeps your vacuum pressure strong.
This O-ring is designed for the Pfeiffer DUO 2.5 and DUO 2.5C 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 Seal Kit for the DUO 2.5C (Part # PKE00020T) , where two of these O-rings are used , as well as in the Minor Kit for the DUO 2.5 (Part # 194324) , which contains one of these O-rings .
O-ring, 16 x 1.0 mm - Viton, Part# 320174
O-ring, 16 x 1.0 mm - Viton, Part# 320174
This is a small Viton O-ring. Its part number is 320174 . An O-ring is a simple loop of elastic material. Its shape is a perfect circle. When you look at a cross-section, it looks like the letter “O”. That is where the name comes from.
You place this O-ring into a groove between two metal parts. When you tighten the parts together, the O-ring gets squished. It fills the tiny gap completely. This creates an airtight, leak-proof seal. This O-ring measures 16 mm on the inside and has a thickness of just 1.0 mm . Despite its small size, it plays an important role.
This O-ring is made specifically for these Pfeiffer DUO pump models :
Pfeiffer DUO 2.5
Pfeiffer DUO 2.5C
If you own either of these pumps, this is the right O-ring for you. It is a common component used in multiple seal and repair kits for these models. A seal set for the UNO/DUO 2.5A also contains two of these O-rings (16 x 1 mm) as part of the minor overhaul package
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This Viton O-Ring (Part #320176) is a critical sealing component for your small Pfeiffer DUO vacuum pump . It measures 15 mm (inner diameter) x 1.5 mm (cross section). Made from Viton, a high-performance synthetic rubber, this O-ring creates a tight, reliable seal. It prevents leaks and keeps your vacuum pressure strong.
This O-ring is designed for the Pfeiffer DUO 2.5, DUO 2.5C, DUO 5, and DUO 5C 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 Seal Kit for the DUO 5 / DUO 5C (Part # PKE30005T) , where two of these O-rings are used , as well as in the Seal Kit for the DUO 2.5C (Part # PKE00020T) and the Major Overhaul Kit for the DUO 5C (Part # PKE32006T) .
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
This Cork Case Gasket (Part #300165) is made specifically for the Pfeiffer DUO 2.5 vacuum pump. It goes between the two main halves of the pump body. Its job is to create a tight, reliable seal. This stops oil from leaking out. It also stops air from leaking in. A good seal means your pump holds strong vacuum pressure. If you are opening the pump for maintenance or a minor repair, you must replace this gasket. It is a one-time-use part .
10 in stock
10 in stock
10 in stock
This Half Coupling (Part# 360055) is a OEM-quality replacement component designed specifically for the Pfeiffer DUO 2.5 and DUO 2.5C dual-stage rotary vane vacuum pumps . It is a critical component that facilitates the connection between the motor and the pump, enabling efficient power transmission . This half coupling is included as a standard component in the Motor Coupling Kit for the DUO2.5 and in the Major Overhaul Kit for the DUO2.5C .
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