Stainless Steel Positive Displacement Pumps

The stainless steel gear pump is a positive displacement pump that utilizes the meshing of a gear pair to create sealed cavities; changes in cavity volume drive the intake and discharge of the medium. The output flow rate is directly proportional to the rotational speed and remains stable despite fluctuations in inlet or outlet pressure, offering both transfer and precise metering capabilities.

Wetted parts are constructed from 304 or 316L stainless steel, providing excellent corrosion resistance suitable for most mild acids, alkalis, and solvents. Sealing options include mechanical seals, while magnetic drive models ensure zero leakage. A thermal insulation jacket is also available for circulation with heat-transfer oil or steam, preventing high-viscosity media from cooling and solidifying.

The pump can be paired with servo, stepper, or variable-frequency drive (VFD) motors, allowing for precise flow control via speed adjustment. It handles a wide range of media, from low-viscosity solvents to high-viscosity resins, adhesives, polymers, and asphalt. Featuring a compact, high-pressure-resistant design and easy maintenance, the pump is widely used in applications such as chemical ingredient blending, reactor discharge, circulation, precision dosing, and pipeline boosting.

Features

1. Positive displacement principle: Flow rate varies with rotational speed; flow remains stable and unaffected by back-pressure fluctuations.
2. 304/316L stainless steel wetted parts: Corrosion-resistant; suitable for applications in chemicals, new materials, food processing, pharmaceuticals, etc.
3. Flexible configuration: Options for mechanical seals or leak-free magnetic drives to eliminate leakage.
4. Optional heating/cooling jacket: Suitable for high-viscosity materials prone to crystallization or solidification.
5. Wide viscosity range: Capable of handling everything from thin liquids and oils to colloids and high-viscosity polymers.
6. Excellent pressure handling: Capable of withstanding high pipeline pressure differentials.
7. Modular design: Simple assembly/disassembly for easy cleaning and maintenance.
8. Customizable options: Displacement, port connections, and motor types can be tailored to specific requirements.

Suitable Media

Various industrial oils, solvents, resins, adhesives, polyurethane, asphalt, polymer melts, coatings, food slurries, mildly corrosive chemical fluids, etc.

Application Industries

Fine chemicals, advanced polymer materials, resin production, coatings and inks, food and pharmaceuticals, environmental water treatment, automated dosing, reactor discharge, extrusion pressurization, etc.

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