$6.02
This Viton O-Ring (Part #320182) is a versatile sealing component for your vacuum pump. It measures 75 mm (inner diameter) x 3.0 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 compatible with Ebara, Pfeiffer, Busch, and Welch pump brands . It fits a wide range of models including the Pfeiffer DUO 5, DUO 5C, DUO 10, DUO 10C, Ebara WV250B, WV250C, WV500B, WV500C, and Welch CRVpro16, CRVpro24 . If you are rebuilding your pump or performing routine maintenance, this O-ring is a must-have part.

O-ring, 75 x 3.0 mm - Viton, Part# 320182

O-ring, 75 x 3.0 mm - Viton, Part# 320182
This is a Viton O-ring. Its part number is 320182 . 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 75 mm on the inside and has a thickness of 3.0 mm .
This is a very versatile O-ring. It works with multiple brands and many pump models. Here are the compatible pumps :
Pfeiffer Pumps:
DUO 5, DUO 5C
DUO 10, DUO 10C
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