Oil Cooling Submersible Screw Centrifugal Pumps - SRS

Description

The SRS series oil cooling submersible screw centrifugal pumps by Stream Pumps surpass traditional centrifugal pumps, venturing into the realm of positive displacement pump applications. These pumps are uniquely designed for handling solids in suspension, viscous liquids, and applications with larger negative suction heads. The inlet edge shape creates an "inducer effect", allowing for higher transportation media temperatures or larger negative suction heads. Additionally, the pronounced screw shape enhances the displacement effect, enabling the handling of high-viscosity liquids that conventional centrifugal pumps struggle with.

Operating Data (50Hz)

• Fluid Type: Raw sewage and industrial wastewater (with grid filtration), long fiber materials, activated sludge (without damaging biological bacteria), and sludge with solid content up to 18%.
• Working Temperature Range: -10℃ ~ 80℃.
  • If the working temperature exceeds 80℃, prior clarification is required.
• Operating Pressure:
  • PN1.0 MPa - Hydrostatic test pressure = PN1.6 MPa

Application

Sewage Field

• Suitable for raw sewage and industrial wastewater without grid filtration.
• Ideal for long fiber transportation.
• Used for transporting activated sludge while preserving biological bacteria.
• Can transport sludge with solid content up to 18%.

Chemical Industry

• Efficiently conveys chemical pulp containing particles.
• Handles oil-water mixtures.
• Can transport chemicals with viscosities up to 4000 cSt, offering a lower correction factor than traditional centrifugal pumps.

Pulp and Paper Industry

• Designed for flexible conveying of pulp with fibers.
• Optimized for long paper fiber transportation.

Features and Benefits

Design Features

Volute Casing

• Large flow channel design ensuring non-blocking performance.
• ISO7005.1 PN10 RF compliant flange standards.

Suction Casing

• High-precision combination design of the suction chamber and impeller increases efficiency.
• Wear-resistant lining for prolonged pump life and reduced operating costs.

Oil Cooling Jackets

• Built-in circulation pump in the oil cooling reservoir for absolute reliability.
• Heat is transferred to the transported medium via cooling ribs, eliminating the need for special cooling channels.
• Prevents sludge buildup, ensuring efficient heat transfer and avoiding overheating.

Operational Safety Components (Monitoring)

• Equipped with temperature sensors and moisture detectors.
• Monitors abnormal pump and motor conditions for enhanced safety and reliability.

Benefits

• Non-blocking performance
• High suction head
• Low shear force for soft conveying
• High efficiency
• Stable and steep performance curve
• Long service life
• Low operational disturbance
• Flow proportional to speed
• Stable operation over a wide speed range

Characteristics

• Compact, integrated design
• Sealed rotating shaft and coupling
• Stable operation with low noise
• Non-clogging hydraulic design
• Oil-cooled jacket to reduce motor temperature
• Multiple monitoring and security features
• High-quality bearings: FAG or SKF
• Two sets of single-end mechanical seals

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