Description;
The SC615 is a robust single cartridge mechanical seal featuring a multi-spring, externally mounted configuration designed for reliable sealing performance across a broad range of industrial rotating equipment. The cartridge construction ensures simplified installation, accurate axial positioning, and reduced setting errors while minimizing equipment downtime during maintenance. Its hydraulically balanced sealing arrangement provides stable face loading, reduced heat generation, and dependable operation under varying pressure and temperature conditions.
Engineered for demanding industrial services, the SC615 is suitable for centrifugal pumps, process pumps, industrial blowers, mixers, agitators, and auxiliary rotary equipment operating in chemical, petrochemical, food processing, pharmaceutical, mining, steel, power generation, water treatment, chilling, and solvent handling environments. The multi-spring design enhances torque transmission and operational stability while preventing spring clogging in moderate solids or contaminated services.
Key Features;
- Available in both metric and inch shaft sizes, enabling global compatibility and plant‑wide standardisation across mixed pump fleets.
- Wide range of metallurgy and elastomer combinations available to match chemical, thermal and wear requirements of different process fluids.
- Precision‑balanced rotary components help reduce shaft or sleeve wear, enhancing equipment life and maintaining concentricity at the seal faces.
- Multi‑spring rotary arrangement provides uniform face loading, improved face stability and reliable performance under varying operating conditions.
- Bidirectional capability allows operation independent of shaft rotation direction, supporting continuous‑duty service and flexible operating scenarios.
- Refurbish-able, cost‑effective design allows replacement of wear components and reuse of hardware, extending seal life and reducing overall sealing expenses.
- Factory pre‑assembled and tested cartridge design ensures accurate working‑length setting, minimises installation errors and reduces commissioning downtime.
- Externally mounted, single‑cartridge construction provides easy access for inspection, simplified installation and straightforward maintenance on pumps and rotating equipment.
- Optional flushing and quench connections are available to integrate with seal support systems for improved cooling, solids management and environmental control where required by the service.
- Hydraulically balanced design options with optimised face geometry minimise heat generation and face wear, delivering reliable sealing performance over a broad range of operating pressures.
Service Overview;
| Parameter | Value |
| Equipment | Centrifugal pumps, process pumps, blowers, mixers, rotary equipment |
| Fluid | Chemicals, solvents, hydrocarbons, water, light slurry, food-grade fluids |
| Service Nature | General industrial, corrosive, moderate abrasive, continuous duty |
| Operating Mode | Continuous operation with intermittent pressure fluctuations |
Specifications;
| Item | Min | Max | Typical / Notes |
| Shaft Size | 20 mm (0.750”) | 300 mm (12.000”) | Larger sizes available on request |
| Pressure | Vacuum | 40 bar (580 psi) | Depends on seal face combination |
| Temperature | -40°C (-40°F) | +220°C (+428°F) | Based on elastomer selection |
| Speed | — | 3600 RPM | Typical process pump application |
| Seal Type | — | — | Single cartridge, external mounted |
| Spring Design | — | — | Multi-spring balanced construction |
Materials;
| Component | Standard Material | Optional Material | Comment |
| Seal Faces | Carbon vs Silicon Carbide | Silicon Carbide vs Silicon Carbide / Tungsten Carbide | Service dependent |
| Elastomers | FKM (Viton) | EPDM / PTFE / FFKM | Chemical compatibility |
| Metal Parts | SS 316 | Hastelloy C / Duplex SS / Alloy 20 | Corrosion-resistant options |
| Springs | SS 316 | Hastelloy Alloy | For aggressive chemical environments |
Applications;
- Chemical process pumps
- Steel and mining industry pumps
- Chilling and refrigeration systems
- Petrochemical and refinery services
- Pulp and paper processing equipment
- Solvent recovery and transfer systems
- Pharmaceutical production equipment
- Food and beverage processing systems
- Industrial blowers and rotary machines
- Water and wastewater treatment plants
- Hydrocarbon and light slurry applications
- Utility pumps and auxiliary process systems
Operating Limits;
| Parameter | Value |
| Pressure | Up to 40 bar (580 psi) |
| Temperature | -40°C to +220°C (-40°F to +428°F) |
| Speed | Up to 3600 RPM |
| Size Range | 20 mm to 300 mm (0.750” to 12.000”) |
Engineering Note;
- The operating parameters and material combinations above represent typical industrial service conditions for multi-spring cartridge mechanical seals. Final seal selection should be verified against actual process fluid characteristics, shaft dynamics, operating pressure-temperature envelope, and applicable API or plant standards before procurement or installation.
- Reference design and formatting guidance derived from uploaded engineering literature and catalogue standards.
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