Sealing Slurries in Centrifugal Pumps Highlighted in Trade Publication Industry Brief
In a recent Industry Brief from processingmagazine.com, 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.
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.
Process fluid with high solids content makes sealing with traditional packing or mechanical seals a challenge that may result in:
- 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
- Off-BEP operation
Watch the Industry Brief video on processingmagazine.com to learn more!