Unbalance Seals

Conical Spring Mechanical Seals

Cone-shaped spring geometry provides self-cleaning action, preventing debris and solids from lodging between coils
Unbalanced face design offers a simple, reliable construction for standard-duty pump applications
Progressive spring rate delivers steady closing force even as face wear accumulates over time
Wide coil spacing at the spring base resists clogging better than tightly wound conventional coils
Compact conical profile allows a shorter overall seal length than standard cylindrical spring designs
Dependable performance across both clean and mildly contaminated fluid conditions
Straightforward, low-maintenance construction suited to routine industrial pump service

PRODUCT DESCRIPTION

Dependable Sealing for Standard Industrial Pump Duty

Fitting a conical spring seal involves sliding the rotating assembly onto the shaft, compressing the cone-shaped spring to its correct working length, and setting the stationary seat squarely in the seal chamber before final alignment checks — much like other spring-loaded designs, though the tapered coil shape means compression behaves slightly differently than a standard cylindrical spring. The wider gaps near the spring's base give it a practical edge in fluids that carry occasional debris or light solids, since buildup has less chance to lodge between coils. It's a dependable, no-frills choice for standard industrial pumps where operating conditions are moderate and a balanced or specialty seal isn't necessary — offering solid sealing performance without added design complexity or cost. For complete step-by-step installation instructions and torque specifications, refer to our detailed installation guide on the blog.

TECHNICAL SPECIFICATIONS