ChemTek Pneumatic Mixer Seal Replacement

Learn how to replace and install the mechanical seal on your ChemTek pneumatic mixer. In this walkthrough, we explain the seal components and demonstrate how to assemble the propeller rod, seal, motor mount, coupling, and motor. In this video: • Identifying the Viton secondary seals and silicon carbide (SiC) sealing faces • Understanding spring compression and its role in seal performance • Positioning the seal on the propeller rod • Installing the PTFE stabilizer and motor mount • Connecting the motor shaft and propeller rod • Checking clearance and recognizing signs of lost spring tension Proper installation helps reduce unwanted movement, premature wear, and leaks. Grinding noises, PTFE shavings, or changes in seal clearance should be investigated before continuing operation. Before servicing, isolate the air supply and safely depressurize the system. The dimensions and setup shown apply to the ChemTek assembly demonstrated; follow the specifications for your mixer. Need replacement parts or assistance? Contact ChemTek