$3.71
This Viton O-Ring (Part #320175) is a versatile sealing component for your small Pfeiffer DUO vacuum pump. It measures 22 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 1.6, DUO 2.5, DUO 2.5C, DUO 3, DUO 5, DUO 5C, and DUO 6 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 Kit for the DUO 2.5 (Part # 194324), where two of these O-rings are used .
O-ring, 22 x 1.5 mm - Viton, Part# 320175
O-ring, 22 x 1.5 mm - Viton, Part# 320175
This is a Viton O-ring. Its part number is 320175 . An O-ring is a simple loop of elastic material. Its shape is a perfect circle.
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 22 mm on the inside and has a thickness of just 1.5 mm . Despite its modest size, it plays an important role.
This O-ring is used across a wide range of small Pfeiffer DUO pump models. According to the official product information, it fits :
Pfeiffer DUO 1.6
Pfeiffer DUO 2.5
Pfeiffer DUO 2.5C
Pfeiffer DUO 3
Pfeiffer DUO 5
Pfeiffer DUO 5C
Pfeiffer DUO 6
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