Double Cartridge Seal: SPS-625
Double Cartridge Seal: SPS-625
HydroMax Seal SPS-625 | Heavy-Duty Double Cartridge Seal for Slurry Applications with External Mounting Option
The SPS-625 is a double-cartridge mechanical seal designed for heavy-duty slurry applications in the mining and mineral, pulp and paper, and water and waste sectors. It features a bi-directional barrier fluid pumping ring and wear-resistant inboard wetted components, making it ideal for processing fluids with abrasive particles.
The stationary seal design is compatible with Plan 53, 53A, 53B, and 53C piping arrangements and can be fully mounted externally in equipment with limited space for the seal chamber, depending on the available clearance.
Product Description
Design Features
- Sleeve end cap and gland insert available in multiple wear-resistant materials
- External mounting option for equipment with small cross-section stuffing boxes
- 1/2″ NPT barrier fluid ports for Plan 53 or 52 compatibility
- The integral flow deflector directs cooling barrier fluid to the inboard and outboard seal faces
- Vortex breakers in the gland insert are ideal for slurry or solids-laden media
- API682-compliant radial clearances ensure mechanical integrity
- Monolithic seal faces for excellent temperature and pressure performance
- Self-aligning stationary seal face design for high-speed applications
- Multi-spring layout with springs isolated from process fluid
- High-efficiency bi-directional pumping ring supports optimal thermal regulation
- Compatible with Plan 53A, 53B, or 53C seal support systems
Technical Specifications
- Seal Shaft Sizes:
All sizes supported - System Vessel Sizes:
12L and 28L - Inboard Seal Face Combinations:
TC/TC, Car/TC, Ant.Car/RB SiC, Ant.Car/TC, RB SiC/RB SiC - Outboard Seal Face Combinations:
Car/TC, Car/RB SiC, Ant.Car/RB SiC, Ant.Car/TC, TC/TC - Gasket Materials:
Spiral Wound Stainless Steel, Graphite - Secondary Sealing Materials:
Viton, Alfas, ERP, Kalrez - Shaft Speeds:
up to 4,000 rpm - Pressures:
up to 25 Barg - Instrumentation:
Designed for use with Plan 53 piping systems - Temperatures:
up to 250°C
The HydroMax SPS-625 delivers exceptional durability and seal performance in abrasive, particle-laden processes, with flexibility for external mounting in compact equipment geometries.
