Wet End Rebuild for VX-Series Pumps

How to replace rotary lobes, wear plates & cartridge mechanical  seals

The following videos show the assembly and disassembly of a Vogelsang rotary lobe pump and how to change rotary lobes, wear plates and cartridge seals.

NOTE: The videos may show 'Buffering' for a minute or so before they start. 


Disassembly of Wet End

Depressurizing the pump and removing the rotors. It's important to remember to depressurize before removing the rotors!


Removing Cartridge Mechanical Seals


Installing O-Rings in Seal Cavity


Installing Cartridge Mechanical Seals


Install Rear Wearplate


Installing Rotors


Setting Retaining Screw Torque


Filling Oil & Pressurizing