Seal, Oil, DUO 120A, Pfeiffer, DUO, Part# 310149

This is the Oil Seal (Part #310149) . It is a replacement part designed specifically for your Pfeiffer pump . Think of it as a tough, flexible ring that fits perfectly around the rotating shaft of your pump. Its only job is to hold the oil in and keep contaminants out.

• Perfect Fit: It is made exactly for the DUO 120A and DUO 125 models. No cutting, no forcing, no guesswork.

• Stops Leaks: It creates a tight barrier that prevents expensive oil from spilling out of the pump casing.

• Protects the Pump: By keeping the oil clean and inside, it ensures the moving parts stay lubricated. This reduces wear and tear and helps your pump last longer.

• Simple Fix: If you are already opening your pump for maintenance, replacing this seal is a smart and easy step to prevent future problems.