Cast Iron Three-Screw Pump – Efficient Heavy Oil Booster Pump

The SMH Series Electric Three-Screw Pump represents an industrial-grade fluid handling powerhouse designed for heavy oil transfer, fuel delivery, and high-pressure booster applications. Backed by multi-national marine classification society certifications, this pump offers unmatched reliability, efficiency, and safety for demanding operations in shipyards, refineries, and power plants. Its primary value centers on providing a highly stable, pulse-free flow that minimizes pipeline vibration and operational wear.

Constructed from a rugged cast iron housing paired with a precision-ground steel screw mechanism, the pump ensures exceptional structural durability and optimal hydraulic balance. The triple-screw design delivers uniform axial movement of the medium, yielding ultra-low operating noise levels and robust self-priming capabilities. Equipped with a high-performance mechanical seal and an internal bearing system optimized for lubricious fluids, this pump effectively eliminates leakage risks while handling viscosities ranging up to 5000 mm²/s.

The operator experience is defined by seamless integration and hassle-free system maintenance. Featuring a standard horizontal flange mounting layout, installation is straightforward and highly secure. An integrated safety valve option shields the entire fluid system from unexpected downstream pressure spikes, drastically reducing long-term maintenance overhead. Whether managing mechanical lubricants, high-viscosity crude oil, or marine fuel injection feeds, this electric booster pump guarantees smooth fluid handling and consistent, long-term productivity.

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Key Features

• LOW-PULSATION PERFORMANCE: The precision-ground triple-screw configuration ensures smooth axial fluid movement, delivering a stable flow with virtually zero pulsation or pipeline vibration.

• DURABLE CAST IRON BUILD: Engineered with a high-strength cast iron housing to withstand immense hydraulic pressure and rigorous, continuous industrial handling.

• MARINE-GRADE CERTIFICATION: Fully certified by international marine classification societies, proving its structural safety and reliability for critical offshore and shipyard operations.

• EXCELLENT SELF-PRIMING: Features a powerful horizontal self-priming mechanism that allows immediate fluid draw upon startup, significantly reducing system preparation downtime.

• INTEGRATED SAFETY PROTECTION: Designed with an optional internal safety valve component to prevent over-pressurization and thoroughly protect downstream pipelines from damage.

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Applications

• Maritime & Shipbuilding: Supplying heavy fuel oil, boosting mechanical lubricants, and safely powering marine hydraulic systems on large vessels.

• Power & Heating Generation: Safely feeding industrial burners with heavy oil, residual oils, and light or medium diesel fuels to optimize combustion efficiency.

• Petrochemical Refineries: Moving high-viscosity fluids like crude oil, polymers, and heavy lubricants efficiently between processing zones.

• Mechanical Engineering: Serving as a high-reliability oil supply and booster pump for large-scale industrial machinery and centralized lubrication networks.

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Specifications

Feature	Details
Product Type	Three-Screw Pump (Triple Screw Pump)
Model Series	SMH Series (e.g., SMH120 / SMH210)
Body Material	High-Strength Cast Iron
Drive Method	Electric Motor Driven
Operating Voltage	380V (Three-Phase)
Power Rating	1.32 kW
Rated Flow Rate	2.8 m³/h
Max Head / Lift	100 m (1.0 MPa pressure output)
Inlet / Outlet Size	32 mm / 25 mm
Rotational Speed	950 rpm
Net Weight	86 kg
Pump Efficiency	58%
Allowable Viscosity Range	1 – 5000 mm²/s
Medium Temperature Range	Up to 80°C (Standard configuration; expandable up to 250°C)

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Extra Sections

Functions:

• Functions primarily as a heavy-duty booster and fuel delivery pump, smoothly moving viscous mediums through intermeshing reciprocating screws without causing fluid shear or aeration.

Advantages:

• Hydraulic Balance: The advanced design minimizes axial load on internal components, extending the service lifespan of the bearings.

• Acoustic Comfort: Exceptionally low noise output compared to gear or piston pumps, creating a safer and more comfortable working environment.

• Energy Efficient: Powered by a highly efficient, standardized 380V electric motor that lowers overall factory electrical consumption.

Certifications:

• Multi-National Marine Classification Society Certifications (including structural safety and material compliance test approvals).

Packaging:

• Shipped securely inside a heavy-duty, moisture-sealed export wooden crate with internal structural block stabilization to protect the motor alignment during international transit.