Double Cartridge: SPS-625
Double Cartridge: SPS-625
HydroMax Seal SPS-625 | Heavy-Duty Double Cartridge Mechanical Seal for Slurry Applications
The SPS-625 is a double cartridge mechanical seal with an integral, bi-directional barrier fluid pumping ring and wear-resistant inboard wetted parts. Engineered for heavy-duty slurry applications, it is ideal for handling particle-laden process fluids in Mining & Mineral, Pulp & Paper, and Water & Waste industries.
This stationary seal design is delivered as a complete cartridge mechanical seal solution and is compatible with Plan 53, 53A, 53B, and 53C system piping arrangements.
In equipment with a small cross-section seal chamber, the SPS-625 can be fully mounted externally (space permitting). The gland insert with integral vortex breakers ensures an optimal fluid environment over the inboard seal faces for enhanced durability and performance.
Product Description
Design Features
- Sleeve end cap and gland insert available in wear-resistant materials to match severe slurry service
- Fully outboard mounted design for compact seal chambers/stuffing boxes prone to premature seal wear
- Large 1/2″ NPT Barrier Fluid In (BI) and Barrier Fluid Out (BO) orifices for Plan 53 or 52 systems
- Integrated deflector in seal gland directs fluid to inboard faces; outboard fluid exit ensures effective thermal management
- Gland insert with vortex breakers enhances performance in solid-laden process media
- Radial clearances conform to API682 best practice standards
- Monolithic seal faces for reliable high-temperature service
- Stationary design with self-aligning seal face, ideal for high-speed operation
- Multi-spring arrangement with springs located outside the process fluid
- Highly efficient bi-directional barrier fluid pumping ring
- Designed for use with HydroMax Seal Plan 53, 53A, 53B, and 53C Seal Support Systems
Technical Specifications
- Seal Shaft Sizes:
All - System Vessel Size:
12L and 28L - Inboard Seal Face Combination:
TC/TC, Car/TC, Ant.Car/RB SiC, Ant.Car/TC, RB SiC/RB SiC - Outboard Seal Face Combination:
Car/TC, Car/RB SiC, Ant.Car/RB SiC, Ant.Car/TC, TC/TC - 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 in conjunction with a Plan 53 piping system - Temperatures:
up to 250°C
The SPS-625 is a high-performance, externally mountable stationary seal built for rugged slurry conditions and optimized for use in compact seal chambers with limited axial space.
