This Steel Ball (Part #330096) is a component for your Pfeiffer DUO 125 vacuum pump . It measures 8 mm in diameter and features a mirror finish. The ball is typically used as a check valve inside the pump. It allows gas to flow in one direction and blocks it from flowing backward. A smooth, perfectly round ball is essential for a good seal. This steel ball ensures smooth and efficient pump operation . If you are rebuilding your pump, this is a critical component you will need .
10 in stock
10 in stock
This Feather Key (Part #220004) is a small but essential hardware component for your Pfeiffer DUO 125 vacuum pump. It measures 5 mm x 5 mm x 10 mm. The key fits into slots on a shaft and a rotating part. Its job is to connect them together. It transmits torque, or turning power, from one part to another. Without it, the rotating parts would slip. This key is designed specifically for the Pfeiffer DUO 125 pump model .
This Round Ends Key (Part #220005) is a small but essential hardware component for your Pfeiffer DUO 125 vacuum pump. Unlike standard keys with square ends, this one has rounded ends . The key fits into slots on a shaft and a rotating part. Its job is to connect them together. It transmits torque, or turning power, from one part to another. Without it, the rotating parts would slip. This key is designed specifically for the Pfeiffer DUO 125 pump model .
10 in stock
This Support Ring (Part #520035) is a component for your Pfeiffer DUO vacuum pump . It provides essential reinforcement and stability to the pump’s internal assembly. This helps your pump run smoothly and reliably. This ring is designed specifically for the Pfeiffer DUO 120A and DUO 125 pump models . If you are rebuilding your pump or replacing worn parts, this support ring is a critical component you will need.
This Valve Seat (Part #390028) is a specialized component for your Pfeiffer DUO vacuum pump . It works together with the valve spindle to create a tight seal. This seal controls the flow of gases through the pump. A worn or damaged valve seat can cause leaks and reduce vacuum performance. This valve seat is designed specifically for the Pfeiffer DUO 125 and DUO 255M (Index C) pump models . If you are rebuilding your pump or fixing a valve leak, this is the part you need.
This Cylinder Sieve (Part #560014) is a fundamental filtration component for your Pfeiffer DUO vacuum pump . Its job is to trap debris and contaminants. This keeps your pump clean and running efficiently. A clean pump means better vacuum pressure and a longer pump life. This sieve is designed for the Pfeiffer DUO 250A, DUO 255M (Index C), DUO 120A, and DUO 125 pump models . If you are rebuilding your pump, this is a part you will need. In fact, it is included in major overhaul kits for these pumps
This Spacer (Part #440050) is an essential component for your Pfeiffer DUO vacuum pump . Its job is to maintain a specific distance or gap between different parts inside the pump . It also helps keep everything perfectly aligned. The right spacing and alignment are critical for smooth, efficient operation . This spacer is designed specifically for the Pfeiffer DUO 120A and DUO 125 pump models . If you are rebuilding your pump or replacing worn internal parts, you may need this spacer.
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