Single Cartridge: SPW682-131
Single Cartridge: SPW682-131
HydroMax Seal SPW682-131 | API682-Compliant Single Cartridge Seal for Plan 31 Systems
The SPW682-131 is a single-cartridge mechanical seal designed in full compliance with API682 specifications, making it ideal for critical applications in the Oil & Gas sector. Featuring integral vortex breakers and a dual outboard restriction bush (segmented and floating), this stationary seal is optimized for API Plan 31 arrangements on API610 V8 onwards process pumps.
Delivered as a complete cartridge solution, the SPW682-131 is factory-assembled and tested for performance in abrasive and high-speed applications involving solids-laden process fluids.
Product Description
Design Features
- Flush orifice for Plan 31 – provides controlled fluid flow that avoids “shot blasting” the seal face when handling solids
- Quench and Drain orifices for Plan 62 or 52 – steam or buffer fluid is guided to the inboard face by an integrated deflector in the gland
- Large 1/2″ NPT seal port connections for efficient flow control
- Gland plate with integrated vortex breakers – ensures controlled turbulence and reduces solids recirculation
- API682-compliant radial clearances between rotary and stationary elements
- Monolithic seal faces enhance high-temperature reliability
- Stationary seal design with self-aligning stationary face – supports high-speed operation
- Multi-spring configuration with springs located out of the process fluid
- Dual outboard restriction bush design – segmented + floating bush combo for superior leakage control and pressure stability
- Compatible with the HydroMax Plan 31 Cyclone Separator System and the Sample Collection Pot
Technical Specifications
- Seal Shaft Sizes:
All - System Vessel Size:
12L and 28L - Inboard Seal Face Combination:
TC/TC, Car/TC, Ant.Car/RB SiC - Gasket:
Spiral Wound Stainless Steel, Graphite - Secondary Sealing:
Viton, Alfas, ERP, Kalrez - Shaft Speeds:
up to 4,000 rpm - Pressures:
up to 40 Barg - Instrumentation:
Used with Plan 31 piping systems - Temperatures:
up to 150°C
The SPW682-131 is a rugged, API682-compliant stationary seal built to deliver long-lasting performance and exceptional reliability in abrasive, high-pressure environments.
