10 in stock
10 in stock
This Viton O-Ring (Part #320529) is a critical sealing component for your Pfeiffer DUO 125 vacuum pump . It measures 410 mm x 3 mm. 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. If you are rebuilding your DUO 125 pump, this O-ring is a must-have part. In fact, it is included as a standard component in the Major Overhaul Kit (Part # PMK025) for this pump
This is the Pfeiffer Part# 320485, a 42 mm x 2.5 mm O-ring made from high-quality Viton rubber . It is a replacement seal used on many Pfeiffer DUO series vacuum pumps including DUO1.6, DUO3, DUO6, and DUO11 models . This part is commonly found in major overhaul kits, seal kits, and maintenance kits .
10 in stock
Out of stock
Out of stock
This O-ring is used on a wide range of Edwards pump families, including EH Booster, QMB Blower, and E1/E2M models, covering pumps like QMB250, EH250, E2M2, E2M5, E2M8, and E2M12 The Buna-N (Nitrile) material offers great oil resistance at a fair price.
Out of stock
Out of stock
10 in stock
10 in stock
Out of stock
This Buna O-ring measures exactly 44.5 mm inner diameter with 3 mm thickness. It replaces Part #02120078 (cross-reference OB-1911) . This O-ring is specifically used on Edwards E1M18, E2M18, E2M28, and E2M30 pump models . The Buna-N (Nitrile) material offers great oil resistance at a fair price.
This Viton O-ring measures exactly 44.5 mm inner diameter with 3 mm thickness. It replaces Part #02120078V. This O-ring is used on Edwards E1M18, E2M18, E2M28, and E2M30 pump models . The Viton (FKM) material handles high heat up to 200°C and harsh chemicals better than standard rubber.
Out of stock
The Busch Part# 320329 is a high-performance Viton O-Ring with exact dimensions of 46 mm x 3 mm. It is the perfect replacement part to stop air leaks and oil leaks in specific Busch and Vacuubrand vacuum pumps. Made from durable Viton, it handles high heat and tough chemicals better than standard rubber rings.
This Buna O-ring measures exactly 46.99 mm inner diameter with 5.33 mm thickness. It replaces Part #02125044. This O-ring is used on Edwards E1M40, E2M40, E1M80, and E2M80 pump models . The Buna-N (Nitrile) material offers excellent resistance to oils and fuels at a cost-effective price , with a standard hardness of 70 Shore A .
Out of stock
This Viton O-Ring (Part #320533) is a critical sealing component for your large Pfeiffer DUO vacuum pump . It measures 47 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 specifically for the Pfeiffer DUO 255M (Index C) pump model . If you are rebuilding your large DUO pump, this O-ring is a must-have part.
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