Sealing Slurries in Centrifugal Pumps Highlighted in Trade Publication Industry Brief

In a recent Industry Brief from, Atlantic Coast Regional Manager, David Brewer discusses how an air seal system is beneficial when containing slurries in centrifugal pumps. The video highlights a new system, which was recognized as a 2020 Processing Breakthrough Products Awards winner.

Learn how an air seal system is beneficial when sealing slurries in centrifugal pumps and the benefits of partnering with SEPCO's SAS-P sealing system.
David Brewer (left) and Jesse Osbourne (right), Processing editor in chief

What is the SAS-P System?

The SAS-P System has an air seal with a split design that allows the system to be installed without any equipment removal or breakdown. It contains no internal springs, which are often failure sources in mechanical seals. The system can withstand 0.25 inches of radial movement and unlimited axial movement. Mechanical seals typically only handle 0.003 to 0.005 inch of movement before spring failure. The system has four major components, so installation is simplified.

SAS-P seal system for pumps
SAS-P System drawing

Process fluid with high solids content makes sealing with traditional packing or mechanical seals a challenge that may result in:

  • Leakage
  • Damaged seals
  • Fretted shafts
  • Further pump and bearing damage

The new system prevents these problems and provides a leak-free solution.

How Can You Seal Slurries in Centrifugal Pumps?

Designed specifically for horizontal and vertical centrifugal pumps in nonhazardous services, the SAS-P is a complete system that incorporates two shaft-supporting bushings and a lantern ring. It is a noncontact tandem seal. It is ideal for the pulp and paper, food and beverage, municipal water/wastewater, mining, and chemical processing industries.

Additionally, according to the publication, this seal is impervious to traditional system conditions that are considered pump and seal killers, including:

  • Pipe strain
  • Misalignment
  • Off-BEP operation
  • Cavitation

Watch the Industry Brief video on to learn more!

About the Author
Anna Claire Howard is a contributing writer, editor, and content marketing specialist for Sealing Equipment Products Co. Inc. (SEPCO) and has been since Spring 2019. Before those two big life changes, she was the content marketing specialist for Fluke Accelix; assistant editor for Grand View Outdoors, publisher of Bowhunting World, Predator Xtreme, Whitetail Journal, Tactical Retailer, and Shooting Sports Retailer; managing editor for Media Solutions, Inc., publisher of Gear Solutions, Wind Systems, and Thermal Processing magazines; assistant editor for MSI; and the editorial intern for B.A.S.S., LLC, publisher of Bassmaster Magazine and In these B2B/B2C roles, Anna Claire developed an appreciation for the industrial sector, as well as the operators and technicians who make up the workforce. You can find her on LinkedIn at