Balance Seals

Wave Spring Mechanical Seal

Undulating wave-form spring replaces the coil spring, cutting axial length significantly compared to conventional single or multi-spring designs
Uniform, low-profile closing force ideal for pumps with restricted seal chamber depth
Reduced spring surface area limits solids entrapment better than tightly wound coil springs
Stable face loading maintained even in compact cartridge and OEM seal housings
Balanced construction lowers hydraulic load on the seal faces for extended face life
Well suited to retrofit applications where chamber space doesn’t allow a standard spring seal
Consistent performance across a wide range of shaft speeds without spring surge

PRODUCT DESCRIPTION

Built for Tight Spaces Without Compromising Seal Performance

Fitting a wave spring seal follows a similar process to other cartridge-style seals — the pre-set assembly is slid onto the shaft as a unit, positioned within the seal chamber, and locked once the correct working length and shaft alignment are confirmed, with the wave spring already compressed to the right setting inside the cartridge. The real advantage of this design shows up in pumps where chamber depth is limited: the flattened wave-form spring takes up a fraction of the axial space a coil spring would need, without sacrificing the even closing force required for reliable sealing. This makes it a practical choice for compact pump models, OEM equipment with tight housing tolerances, and retrofit situations where a standard spring seal simply won't fit. For complete step-by-step installation instructions and torque specifications, refer to our detailed installation guide on the blog.

TECHNICAL SPECIFICATIONS