Every cartridge seal we ship is measured twice — by hand — before it leaves our bench

Inside Lepu's workshop: cartridge type mechanical seals going through their QC and packing routine.

From the machined parts to the full pallet ready for shipment, every seal is hand-measured by our engineers — shaft fit, face dimensions, tolerances checked against the drawing — then individually cartoned and crated for shipment. Different sizes, same standard of inspection.

Need a mechanical seal for centrifugal pump or mechanical seal for water pump duty — or a cartridge mechanical seal for multi-stage pumps, or mechanical pump shaft seals, or mechanical seal replacement parts for equipment already in service? Lepu builds them in Guangzhou and ships worldwide. Send us a drawing, a sample, or a part number.