$3.85
This Viton O-Ring (Part #320519) is a critical sealing component for your Pfeiffer DUO vacuum pump . It measures 48 mm (inner diameter) x 2.5 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 6, DUO 6M, DUO 11, and DUO 11M 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 (Part # PSK010) and the Maintenance Kit (Part # PRK010) for these pumps .
O-ring, 48 x 2.5 mm - Viton, Part# 320519
O-ring, 48 x 2.5 mm - Viton, Part# 320519
This is a Viton O-ring. Its part number is 320519. 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 48 mm on the inside and has a thickness of 2.5 mm .
This O-ring is made specifically for Pfeiffer DUO pump models :
Pfeiffer DUO 6
Pfeiffer DUO 6M
Pfeiffer DUO 11
Pfeiffer DUO 11M
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