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This Viton O-Ring (Part #320535) is a critical sealing component for your large Pfeiffer DUO vacuum pump . It measures a massive 500 mm (inner diameter) x 3 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. In fact, it is included as a standard component in the Seal Kit (Part # PSK028) and the Major Overhaul Kit (Part # PMK028) for this pump .
10 in stock
10 in stock
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This Buna O-ring (Part# 050227) creates a tight, reliable seal inside your Kinney rotary piston vacuum pump. Measuring 53.57 mm inner diameter x 3.53 mm cross section, it is made of durable Buna-N (Nitrile) rubber . This O-ring fits many popular Kinney pump models including KT150C, KT300C, KT500C, KT300D, KT500D, KC5, KC8, KC15, KTC90, and KTC112 . It is also a key component in factory maintenance kits .
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This is the Part# 23970121, a 55 mm x 3 mm O-ring made from high-quality Viton rubber . It is a direct replacement seal used on Ebara, Leybold, and Pfeiffer vacuum pumps including Ebara D40BCS, Ebara D65BCS, Leybold Trivac series, and Pfeiffer UNO30M models . You will also find this O-ring included in several major seal kits and repair kits
This Viton O-Ring (Part #23970504) is a critical sealing component for your Pfeiffer vacuum pump . It measures 55 mm (inner diameter) x 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 compatible with Pfeiffer, Busch, and Leybold pump brands . It fits the Pfeiffer DUO 250A and UNO 250A pump models, as well as Busch models WA501, WAU501, WS501, and WSU501 . 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 250A (PSK027) .
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
10 in stock
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