Marine W V Series Twin Screw Pump

Marine W V Series Twin Screw Pump

Performance Range

1. Conveyable medium without solid particles:
   • Viscosity range: 1 – 1,500,000 cSt (reduced speed can reach up to 3×10⁶ cSt).
   • Pressure range: Up to 4.0 MPa.
   • Flow range: 1 – 2,000 m³/h.
   • Temperature range: -15°C – 200°C.

Application

1. Petroleum industry: Used for conveying crude oil, heavy oil, residual oil, fuel oil, asphalt, etc.
2. Chemical industry: Used for conveying various acids, alkalis, salts, organic solvents, and other corrosive media.
3. Paint industry: Used for conveying various paints, resins, pigments, etc.
4. Food industry: Used for conveying edible oil, juice, syrup, etc.
5. Pharmaceutical industry: Used for conveying various pharmaceutical liquids.
6. Shipbuilding industry: Used for conveying fuel oil, lubricating oil, etc.
7. Other industries: Used for conveying various high – viscosity, non – Newtonian fluids, and fluids containing fine solid particles.

Features of Welded Twin Screw Pump

1. High delivery performance without pulsation and stirring: The pump is able to transport mediums steadily without causing pulsation or stirring, which is beneficial for maintaining the stability of the conveyed medium.
2. Wide application range: It can transport a variety of mediums, from low – viscosity liquids to high – viscosity pastes, and can also transport mediums containing fine solid particles.
3. Good self – priming performance: The pump has a strong self – priming ability, which simplifies the pipeline system and reduces the requirements for the installation position.
4. Low noise and vibration: The pump operates with low noise and vibration, providing a good working environment.
5. Long service life: The pump components are made of high – quality materials and have a reasonable structure, ensuring a long service life.
6. Easy maintenance: The pump has a simple structure, and maintenance and disassembly are relatively easy, reducing maintenance costs.

Form Code of W.V Series Twin Screw Pump

1. Series code specification:
   • W series: Horizontal pump
   • V series: Vertical pump
2. Size code specification: The size code is represented by numbers, such as 2, 2.5, 3, etc., indicating different pump sizes.
3. Type code specification: There are Z and ZN types. Z type is a bare pump, and ZN type is a pump with a safety valve.

Heating Method Code of Pump Casing Specification

The heating method of the pump casing varies according to different requirements. The middle part of the casing can be heated, or the whole pump casing can be heated. Different heating methods are adopted according to the actual needs of the conveyed medium. For example, for high – viscosity mediums, full – casing heating is often used to improve the fluidity of the medium.

Seal Code Specification

1. Packing seal: Suitable for general mediums with low requirements for sealing performance.
2. Single mechanical seal: Suitable for mediums with certain requirements for sealing performance, with a relatively simple structure.
3. Double mechanical seal: Suitable for mediums with high requirements for sealing performance, especially for toxic, hazardous, or expensive mediums, to ensure no leakage.
4. Metal bellow mechanical seal: Suitable for high – temperature, high – pressure, and corrosive mediums, with good sealing performance and reliability.

Material Code

The materials of the pump components vary according to the conveyed medium. The main materials include cast iron, stainless steel, and special alloys to meet the requirements of different mediums for corrosion resistance and wear resistance.

W.V Series Twin Screw Pump Performance Data

Due to the large number of performance data tables (from the images, there are multiple tables with different pump models, speeds, flow rates, heads, powers, efficiencies, and NPSH values), here is a partial representation of the table structure:

The full set of performance data tables provides detailed parameters for different pump models under various operating conditions, which can be used for pump selection and system design.

Attention please: The description may be different with the product, please contact us for quotation.
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