10 in stock
This Viton O-Ring (Part #320520) is a critical sealing component for your Pfeiffer DUO 120A vacuum pump . It measures 12.5 mm x 2.5 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 120A pump, this O-ring is a must-have part. In fact, it is included as a standard component in the Seal Kit (Part # PSK024) for this pump .
10 in stock
This Viton O-Ring (Part #PL23970419) is a critical sealing component for your vacuum pump. It measures 125 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 and Leybold pump brands . It fits the Pfeiffer DUO 120A, DUO 125, DUO 250A, DUO 255M (Index C), UNO 250A and Leybold Ruvac WAU2000, WSU2000, WA2001, WAU2001, WS2001, WSU2001 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 for the DUO 120A (PSK024) and the Overhaul Kit for the DUO 125 (PMK025) .
10 in stock
10 in stock
This Viton O-Ring (Part #320176) is a critical sealing component for your small Pfeiffer DUO vacuum pump . It measures 15 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 2.5, DUO 2.5C, DUO 5, and DUO 5C 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 for the DUO 5 / DUO 5C (Part # PKE30005T) , where two of these O-rings are used , as well as in the Seal Kit for the DUO 2.5C (Part # PKE00020T) and the Major Overhaul Kit for the DUO 5C (Part # PKE32006T) .
10 in stock
This is the Pfeiffer Part# 4070262, a 15 x 5 mm O-ring made of high-performance Viton (FKM) rubber. It is specifically designed to replace the worn seal in Pfeiffer UNO 1.5A and DUO 1.5A vacuum pumps . Keep your vacuum pump leak-free and running efficiently with this direct-fit, durable seal.
Get your vacuum pump back in shape with this large, durable Viton O-ring. Measuring 150 mm inside diameter (ID) x 3.0 mm width (CS) , this Part# 29361336 is a perfect fit for the Pfeiffer DUO 125 pump. It is also used in repair kits for Edwards EH/QMB booster pumps. Made from high-quality Viton (FKM) , it handles the high heat and oils of industrial vacuum systems without breaking down.
This Viton O-Ring (Part #320174) is a critical sealing component for your small Pfeiffer DUO vacuum pump . It measures 16 mm (inner diameter) x 1.0 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 designed for the Pfeiffer DUO 2.5 and DUO 2.5C 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 for the DUO 2.5C (Part # PKE00020T) , where two of these O-rings are used , as well as in the Minor Kit for the DUO 2.5 (Part # 194324) , which contains one of these O-rings .
10 in stock
This is the Pfeiffer Part# 4071536, a large 165 mm x 3 mm O-ring made from durable Viton rubber . It is a replacement seal for Pfeiffer DUO 5 and DUO 10 series vacuum pumps . Use this part to stop oil leaks and keep your pump running strong.
This Viton O-Ring (Part #320177) is a critical sealing component for your Pfeiffer DUO vacuum pump. It measures 18 mm (inner diameter) x 2.0 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 designed specifically for the Pfeiffer DUO 125 and DUO 255M (Index C) 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 for the DUO 125 (Part # PSK025) , where exactly one of these O-rings is used .
This Viton O-Ring (Part #320178) is a critical sealing component for your vacuum pump. It measures 18 mm (inner diameter) x 5.0 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 Pfeiffer, Welch, DUO, UNO, and CRVpro pump brands and families . It fits the Pfeiffer DUO 2.5, DUO 2.5C, DUO 1.6, DUO 3, DUO 5, DUO 5C, UNO 6, and Welch CRVpro 6 and CRVpro 8 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 for the DUO 6 / DUO 6M (Part # PSK010), where two of these O-rings are used .
This Viton O-Ring (Part #320534) is a critical sealing component for your large Pfeiffer DUO vacuum pump . It measures 180 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 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
This Viton O-Ring (Part #4070015) is a small but critical sealing component for your Pfeiffer vacuum pump . It measures 2.2 mm (inner diameter) x 1 mm (cross section) . Made from Viton, a high-performance synthetic rubber, this tiny O-ring creates a tight, reliable seal in a precise location within your pump.
This O-ring is designed for the Pfeiffer UNO 1.5A and DUO 1.5A 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 Repair Kit (Part # 080010) for these pumps .
10 in stock
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