This is the Pfeiffer Part# PKE00020T Seal Kit for the Duo 2.5C corrosive gas version vacuum pump. This kit includes Viton O-rings, gaskets, and a shaft seal for basic maintenance. Designed for seamless compatibility with your Duo 2.5C pump, this seal kit provides a dependable solution for routine maintenance and helps restore sealing integrity.
This Coupling Washer (Part# 420043) is a genuine OEM-quality replacement component made of CRS (Cold Rolled Steel), designed specifically for the Pfeiffer DUO 2.5 and DUO 2.5C dual-stage rotary vane vacuum pumps . It is a critical component of the coupling assembly, helping to ensure proper connection between the motor and the pump for efficient power transmission . This washer is included as a standard component in the Major Overhaul Kit for the DUO2.5C and in the Major Overhaul Kit for the DUO2.5
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