Product Overview;
The LS810 is a robust, self-contained single cartridge mechanical seal engineered specifically for reliable operation in abrasive, solids-laden, and corrosive process environments. Featuring a hydraulically balanced, multi-spring pusher design with a stationary spring configuration, this seal is optimized for light slurries containing up to 10% solids by weight. By isolating the spring mechanism from the process fluid, the LS810 effectively eliminates clogging, solids accumulation, and spring hang-up. Designed to operate without the need for an external flush, process bypass, or water-based cooling, it prevents product dilution while significantly reducing water consumption and operational costs—delivering a highly sustainable, water-efficient sealing solution for the harshest industrial environments.
Technical Key Features;
- Bi-directional operation: Seals operate irrespective of shaft rotation direction, reducing stocking complexity.
- Hard-faced seal combinations: Abrasion-resistant face materials extend service life in abrasive slurry environments.
- Metric and inch sizes available: Offers global compatibility and easy retrofit across international equipment standards.
- Optimized for light slurries: Engineered for light slurries up to ~10% solids by weight and low-to-moderate abrasiveness (application-dependent).
- Water-saving design: Eliminates need for continuous water flush in most applications, supporting plant sustainability and reduced operating costs.
- Reliable under transient conditions: Maintains sealing performance during pressure fluctuations, intermittent dry-running, and variable solids loadings (case-dependent).
- Hydraulically line-to-line balanced geometry: Minimizes net hydraulic face loading, reduces wear and heat generation, and improves stability under fluctuating pressure and flow.
- Cartridge and semi-cartridge options: Factory-assembled, pressure-tested cartridge units simplify installation, ensure correct alignment, minimize field errors, and shorten downtime.
- Quick installation and easy serviceability: Modular cartridge design allows fast removal and replacement, lowering mean time to repair and life-cycle maintenance costs.
- Multiple-spring, stationary arrangement: Multi-spring design with springs isolated from the process fluid ensures uniform face loading, prevents clogging, and reduces spring hang-up.
- Heavy-duty, erosion-resistant profile: Smooth internal geometry and robust materials reduce turbulence, solids ingress, and abrasive erosion in crystallizing, viscous, or erosive fluids.
- Flush-free and quench-free operation: Designed to run without external flush, quench, or cooling water in most slurry services, eliminating product dilution and reducing water consumption.
- Broad equipment compatibility: Suitable for slurry pumps, agitators, mixers, reactors, and other rotary process equipment in mining, mineral processing, chemical, fertilizer, pulp & paper, and wastewater applications.
Service Overview;
| Parameter | Value |
| Equipment | Slurry Pumps, Agitators, Mixers, Reactors, Rotary Equipment |
| Fluid | Abrasive Slurries, Crystallizing Fluids, Molasses, Tailings, Chemical Media |
| Service Nature | Abrasive, Corrosive, Solids-Handling, Viscous & Crystallizing |
| Operating Mode | Continuous & Intermittent Industrial Duty |
Specifications;
| Specification | Min | Max | Typical / Notes |
| Shaft Size | 20 mm (0.750”) | 300 mm (12.000”) | Metric & inch sizes available |
| Pressure | Vacuum | 12 bars (174 psi) | Depending on seal arrangement |
| Temperature | -20°C (-4°F) | +120°C (+248°F) | Based on elastomer selection |
| Speed | — | 2900 RPM | Application dependent |
| Seal Design | — | — | Single, balanced slurry seal |
| Spring Type | — | — | Stationary non-clogging spring configuration |
Materials;
| Component | Standard Material | Optional Material | Comment |
| Seal Faces | Silicon Carbide / Carbon | Tungsten Carbide / Silicon Carbide | Abrasion-resistant face combinations |
| Elastomers | FKM (Viton) | EPDM / PTFE / FEP Encapsulated | Chemical compatibility dependent |
| Metal Parts | SS 316 | Duplex SS / Hastelloy / Alloy 20 / Titanium | Corrosion resistance enhancement |
| Springs | SS 316 | Hastelloy Alloy | Isolated from slurry media |
Applications;
- Dyeing Industry
- Pulp & Paper Processing
- Thermal & Power Plants
- Coal & Iron Ore Processing
- Fertilizer & Chemical Plants
- Mining & Mineral Processing
- Food, Sugar & Distillery Plants
- Alumina & Uranium Processing
- Oil & Petrochemical Processing
- Waste Water Treatment Systems
- Offshore Sand/Gravel Oil Extraction
- Gold, Copper, Zinc & Nickel Refining
- Potash, Pigment & Phosphate Plants
- Pharmaceutical & Solvent Industries
- Steel Making & Synthetic Rutile Plants
- Crystallization & Slurry Transfer Duties
- Wet Cement & Tailings Disposal Systems
- Flue Gas Desulphurization (FGD) Systems
- Mixers, Agitators & Other Rotary Equipment
Operating Limits;
| Parameter | Value |
| Pressure | Up to 12 bars (174 psi) |
| Temperature | -20°C to +120°C (-4°F to +248°F) |
| Speed | Up to 2900 RPM |
| Size Range | 20 mm to 300 mm (0.750” to 12.000”) |
| Solid Content | 10% by weight |
| Particle Size | 1,000 Microns Maximum |
| Particle Hardness | 4 Mohs Maximum |
