Seals & O-Rings

Mechanical seal modules, sliding ring holders, O-rings, and static seals for Lutz pump tubes. O-rings are stocked in FPM (Viton) and other compounds to match the pumped liquid, and complete seal modules are available for both the mechanical seal (MMS) and sealless (MSL) configurations of every tube family. Because Lutz seal modules are interchangeable, you can convert a tube between sealless and mechanical seal while replacing a worn seal, without special tools. A leaking tube almost always needs a seal or O-ring, not a new tube. Match parts by your tube model and material on the product pages, or send us the model from the tube nameplate through our contact form and we will pull the right seal for it.