Overview
The SCE-M API 685 Process Pump by Ruhrpumpen is a robust, single-stage, overhung pump with a permanent magnetic drive, suitable for petrochemical, refinery, oil & gas, chemical, power, heavy industry, mining, and water applications. It is maintenance-free, 100% leakage-free, and complies with TA-Luft air quality standards.

Specifications
- Capacity: Up to 2,200 m³/h (9,690 gpm)
- Head: Up to 330 m (1,080 ft)
- Pressure: Up to 40 bar (580 psi)
- Temperature Range: -120°C to 450°C (-184°F to 840°F)
- Flanges: ASME B16.5 Class 300#

Design Features
- Centerline mounted casing, back-pull-out design, radially split, end suction, and top discharge.
- Patent-pending journal bearing design with sintered silicon carbide.
- Controlled axial thrust and internal flushing system for lubrication.
- Containment shell ensures 100% leakage-free operation.

Materials
- Volute Casing: Carbon Steel or 316 AUS
- Impeller: 12% CR or 316 AUS
- Containment Shell: Hastelloy C
- Inner Magnet Rotor: 316 AUS
- Pump Shaft: AISI 4140 or 316 AUS

Performance and Efficiency
- Over 130 hydraulic combinations and three impeller options per pump size.
- Non-metallic containment shells like Zirconium Oxide enhance efficiency by eliminating magnetic losses.

Optional Features
- Secondary containment and control systems for safety.
- Mainstream filters, heating jackets, and external flushing systems.
- Inducers to reduce NPSHr values.

Quality Assurance
- ISO 9001 certified facilities, compliant with API 685 standards.

Internal Flows and Pressures
- Pressurized internal flush flow system for heat dissipation and vaporization prevention.
- Flush flow optimized by impeller balancing holes.

Testing Capabilities
- Test lab supports flow and head tests for pumps up to 27,000 Hp (20 MW) at 50 and 60 Hz.
- Includes performance, NPSH, vibration, noise, bearing temperature, hydrostatic, and submergence tests.

Product Offerings
- Horizontal Process Pumps Two Stage: Radially split, horizontal center line mounted centrifugal pump for refineries, oil fields, and chemical plants.
- Vertical Barrel Pump: Low NPSH "Shockless Entry" impeller for condensate, power plants, and refineries.
- Horizontal Process Pump: Axially split, horizontal multi-stage centrifugal pump for refinery and chemical applications.
- Vertical In-line Process Pump: Radially split, vertical in-line centrifugal pump for petroleum refining and chemical applications.

Conclusion
Ruhrpumpen is committed to quality, service, expertise, innovation, and competitiveness in pumping technology, serving diverse industrial applications.