The VTA | Fittings | Shaft Seal, FKM (40/60×10 mm) is a FKM (Viton) radial shaft seal sized 40/60×10 mm used to prevent leakage around rotating shafts in VTA gear pumps and wiper drive assemblies on wiped-film distillation systems. FKM material provides excellent resistance to elevated temperatures, vacuum conditions, and the process fluids encountered in botanical extract distillation. Replacing worn shaft seals prevents product contamination and maintains the vacuum integrity of the distillation system. An OEM-compatible replacement part for VTA VKL and VKS series equipment.