Overview
The Gaddis GS-185-VR2R2 mechanical seal assembly is a direct-replacement Type 21 (John Crane Type 21) seal designed for the GGP-21 pump series. Built for demanding industrial applications, this seal combines durable elastomer bellows construction with proven John Crane Type 21 design standards. Gaddis has over 40 years of experience manufacturing mechanical seal components for rotating equipment, and this assembly delivers OEM-level performance at a competitive price point.
Key Features
- Type 21 (John Crane Type 21) design with elastomer bellows construction
- Non-clogging single coil spring design for reliable operation
- VR2R2 configuration for enhanced sealing performance
- Direct replacement for GGP-21 gear pump series
- Proven design for pumps, compressors, mixers, and blenders
- Manufactured to exacting Gaddis specifications and quality standards
Technical Specifications
- Seal Type: Type 21 (John Crane Type 21) elastomer bellows
- Part Number: GS-185-VR2R2
- Application Series: GGP-21 pumps
- Spring Configuration: Single coil spring, non-clogging
- Dimensions: 2.000″ × 2.875″ × 1.500″
- Material Configuration: Stainless steel/carbon mating ring with elastomer bellows
- Common Industries: Rotary pumps, centrifugal pumps, mixers, blenders, chillers
Typical Applications
This mechanical seal assembly is commonly used in rotary equipment including:
- Gear pumps and gear-driven hydraulic systems
- Centrifugal and rotary turbine pumps
- Compressors and blower systems
- Mixers and blenders in processing facilities
- Chiller and heat exchange equipment
- Industrial rotating machinery requiring Type 21 seal compatibility
Compatibility & Replacements
Compatible With
- GGP-21 gear pump series
- John Crane Type 21 seal mounting systems
- Equipment using 1.25″ (1-1/4″) shaft sizes
- Pumps and rotating equipment requiring Type 21 elastomer bellows seals
Replaces / Drop-In Replacement For
- OEM Gaddis GGP-21 seal assemblies
- John Crane Type 21 GGP-21 seal configurations
- Verify your specific pump model to confirm compatibility with your system integrator before ordering
Works With
- Rotary pump and gear pump systems
- Elastomer bellows seal mounting designs
- Single coil spring-driven seal configurations
- Industrial rotating equipment standardized on John Crane Type 21 seals


















