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: Having issues with these videos? View them here as a Youtube playlist


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