Single Cartridge: SPW131
Single Cartridge: SPW131
HydroMax Seal SPW131 | Compact Single Cartridge Seal for Plan 31 with Vortex Breakers
The SPW131 is a single-cartridge mechanical seal designed with integral vortex breakers in the gland plate, optimized to fit into compact, small cross-sectional seal chambers. Built in accordance with API610 Ed.5 onwards, this seal is ideal for process fluids containing suspended particles and solids, and is engineered for API Plan 31 piping arrangements.
This stationary cartridge seal is a complete, factory-assembled solution that delivers enhanced reliability and wear resistance in challenging process environments.
Product Description
Design Features
- Flush orifice for Plan 31 ensures that flush fluid containing solids does not “shot-blast” the stationary seal face
- Large 1/2″ NPT seal port orifices for efficient fluid flow
- Gland plate with integrated vortex breakers—prevents particle recirculation and optimizes seal chamber hydraulics
- Compact cartridge design with short inboard and outboard lengths
- Designed for small cross-sectional seal chambers as per API610 requirements
- Multi-spring configuration with springs positioned outside the process fluid
- Hydraulically balanced seal face design enhances pressure handling capability
- Monolithic seal faces improve performance in high-temperature operations
- Fully compatible with HydroMax Plan 31 Cyclone Separator and Sample Collection Pot systems
Technical Specifications
- Seal Shaft Sizes:
All - 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 25 Barg - Instrumentation:
Used with Plan 31 piping systems - Temperatures:
up to 150°C
The SPW131 is an API-compliant, best-practice stationary cartridge seal, purpose-built for solids-handling applications and engineered to provide extended seal life and stable operation in abrasive service conditions.
