Enviropump and Seal ZL Series Cartridge Mechanical Seals

The most advanced range of production cartridge mechanical seals available for rotating equipment, including centrifugal pumps, positive displacement pumps, agitators, and mixers

Cartridge Seal Configurations:

  • Single
  • Double (Axial)
  • Double (Concentric)
  • Acid Double Seal


The Most Advanced Features Combined With The Most Advanced Support Program

  • Sizes:
    • Standard stock sizes from 1” to 3” shaft diameter.
    • Other sizes made to order.
  • Ratings:
    • Pressures to 400 psig (27.5 bar)
    • Speeds to 4500 rpm
    • Procss temperatures to 600 F (315 C)
  • Cartridge Design:
    • Factory assembled and ready to install
    • Self-centering
    • Pre-set spring load
    • No settings, measurement, or adjustments needed
    • Universal gland design fits many seal chamber sizes
    • Eliminate all shaft fretting
  • Key Features:
    • “Stationary” design-no rotating springs
    • “Double balanced”
      • Single seal can handle vacuum or pressure
      • Dual seals can operate pressurized or non-pressurized
  • Full “No Excuse” warranty and rebuild program:
    • Operational warranty period combined with low-cost reconditioning program.
    • Standard field repair kits for plants with in-house repair program
  • Stocking Distributors in many locations:
    • Contact us for a Distributor near you!

    Made in USA