Innovative Cartridge Seals for Every Application
Paradigm Seals™ offers innovative cartridge seals designed for performance, simplicity, and long-term reliability. Our product line includes the A1 Single Cartridge Seal, the A2 Dual Cartridge Seal, and the A3 Short Cartridge Seal — along with Specialty and Custom Seals engineered for unique applications. Each is built with our signature innovations like FastGrip™, TriLock™, QuickCore+™, and FlushControl+™ giving you what we call The Paradigm Advantage™. Not sure which seal is right for you? Use our interactive Find Your Seal™ tool to match by pump model or size/type.
PATENT PENDING 63/901,574
Paradigm Seals A1 Single Cartridge Seal
Our flagship product, the A1 Single Cartridge Seal, is designed to simplify installation while reducing maintenance costs. Built with our proprietary FastGrip™, TriLock™, and QuickCore+™ systems, the A1 is ideal for standard pump applications across industries.
Key Benefits:
Includes FastGrip™, TriLock™, QuickCore+™, and FlushControl+™ innovations
FastGrip™ installation without set screws → protects shafts and sleeves
Automatic alignment with TriLock™ for reliable performance
Easy drop-in repair with QuickCore+™ system
Included is an optional, integrally installed restrictor bushing that optimizes flush flow, maintains pressure on fluids near their vapor point, reduces water consumption, and improves seal life.
Cost-effective, long-lasting design
Best For:
Water/Wastewater, Power, Food & Beverage, Agribusiness
Paradigm Seals A2 Dual Cartridge Seal
Engineered for demanding environments, the A2 Dual Cartridge Seal offers the same core innovations as the A1, plus advanced features for higher stability and improved cooling.
Key Benefits:
Includes FastGrip™, TriLock™, and QuickCore+™ innovations
Integrated axial flow pumping ring for better fluid circulation
Compact design keeps seal faces closer to bearings → improved stability
Designed to handle more complex pumping applications
Best For:
Oil & Gas, Power Generation, Chemical Processing
Paradigm Seals A3 Short Cartridge Seal
The A1 Short is built for applications where space is limited or a flush system is not required. It delivers reliable sealing performance at a lower cost while maintaining the advantages of Paradigm’s signature design.
Key Benefits:
Space-saving design for tight installations
Lower-cost option without sacrificing reliability
FastGrip™ and TriLock™ features for easy alignment and installation
Best For:
Small footprint equipment, cost-sensitive applications
Specialty / Custom Seals
When standard seals don’t fit your application, Paradigm offers engineering support to design custom and specialty seals. From unusual pump sizes to unique chemical environments, we create solutions tailored to your needs.
Key Benefits:
Custom-engineered solutions
Support for specialized industries and equipment
Backed by Paradigm’s innovative design philosophy
Contact Us for Custom Solutions
The Paradigm Advantage™
FastGrip™
The FastGrip™ Clamp eliminates traditional set screws, preventing shaft and sleeve damage while simplifying installation and removal.
It provides secure, even clamping to ensure reliable torque transmission without distortion or scoring. To ensure proper installation, Paradigm includes a T-handle torque wrench and the correct Torx® drive bit, allowing the FastGrip™ clamp to be tightened accurately every time.
Integrated into the seal design, FastGrip™ delivers faster, more reliable installation.
TriLock Bushing™
The TriLock™ Bushing eliminates the need for traditional centering clips and their removal, dramatically simplifying installation.
It automatically aligns the seal on all three axes, maintaining proper spring position for consistent seal face loading. The bushing locks the seal securely in place, helping prevent uneven wear and premature seal failure.
Because the TriLock™ Bushing is integrated into the seal design, it improves reliability without adding steps or complexity — making consistent, repeatable installations easier to achieve.
QuickCore+™
QuickCore™ Technology allows you to replace only the core sealing element — not the entire seal — delivering a new, factory-tested seal every time at the same cost as repairing a competitor’s cartridge seal, without the added logistics or downtime of sending your seal out for repair.
By eliminating the traditional repair process, QuickCore™ removes the need to clean and decontaminate used seals, gather cartridges for the storeroom, create purchase orders, package and ship seals out, or wait for a quotation — only to find the seal is beyond repair.
FlushControl+™
The FlushControl™ Bushing is an optional feature included with the seal. When used, it is installed directly into the seal as part of the assembly and is designed to manage flush flow to the seal faces — improving lubrication, cooling, and overall seal performance.
When installed, the FlushControl™ Bushing helps reduce excess flush flow, minimizes dilution of the process fluid, conserves water, and improves reliability. It is especially beneficial in applications with flashing or near-flashing fluids, where maintaining proper lubrication and cooling is critical.
Not sure which seal is right for your pump?
Use our Find Your Seal interactive tool to match by pump maufacturer, or seal model/size.