Twin Screw Pump

Product Name: Twin Screw Pump

Product Overview:The Twin Screw Pump is a premium, multi-phase positive displacement pump engineered to deliver exceptional performance in the most demanding fluid transfer applications. Characterized by its unique dual-rotor design, this pump excels at handling a vast spectrum of media—from crystal-clear, low-viscosity solvents to extremely thick, abrasive pastes. Its most outstanding capability is the seamless transfer of gas-liquid mixtures and multiphase fluids, making it an indispensable and highly versatile solution across the petroleum, chemical, marine, food & beverage, and pharmaceutical industries.

Key Features & Structural Advantages:

• Superior Multiphase & Gas-Liquid Handling: The twin screw pump is specifically designed to handle complex media that would cripple conventional pumps. It can efficiently transport gas-liquid mixtures, volatile fluids, and liquids containing entrained air without cavitation or flow interruption. This makes it the ultimate choice for applications like crude oil extraction and chemical processing where fluid composition varies.

• Gentle, Pulse-Free Fluid Transfer: Operating on a highly precise external (meshing) principle, the two interlocking screws create sealed chambers that move the fluid axially. This results in an exceptionally smooth, continuous, and non-pulsating flow. The low-shear action ensures that the intrinsic structure of sensitive media—such as emulsions, food products, or delicate chemical suspensions—remains completely intact.

• Excellent Self-Priming & Dry-Run Capability: This pump boasts a powerful self-priming ability and can generate a high vacuum, allowing it to lift fluids from deep tanks with ease. Furthermore, its robust design with precisely machined, non-contacting screws allows for short periods of dry running without damaging the internal components, providing greater operational flexibility and safety.

• Robust External Bearing & Timing Gear Design: The pump features a heavy-duty external bearing and timing gear assembly that is completely isolated from the pumped fluid. This ensures the gears and bearings are always perfectly lubricated, regardless of the medium's lubricity. It allows the pump to handle non-lubricating, corrosive, and abrasive liquids while guaranteeing a long, maintenance-friendly service life.

• High Efficiency & Versatile Material Options: With minimal internal leakage and optimized hydraulic design, the twin screw pump delivers outstanding volumetric efficiency across a wide range of viscosities and pressures. It can be custom-manufactured from various materials, including ductile iron, stainless steel (304, 316, 316L), and duplex stainless steel, to meet the strictest corrosion-resistance and sanitary standards (such as 3-A and EHEDG).

Technical Specifications:

• Flow Rate: Highly customizable, typically ranging from 1 to over 500 m³/h depending on the model

• Pressure Rating: Capable of handling differential pressures up to 4.0 MPa (or higher for specialized high-pressure models)

• Viscosity Range: Extremely versatile, handling media from 0.5 cSt (like water) up to 3,000,000 cSt (extremely thick pastes)

• Temperature Limit: Standard models up to 150℃; heated jacket versions available for media up to 250℃

• Material Options: Pump Body & Screws (Cast Iron, Stainless Steel 304/316/316L, Duplex Steel); Seals (High-performance mechanical seals, packing seals, or magnetic drive options)

Typical Applications:

• Oil & Gas Industry: Ideal for multiphase boosting (crude oil, natural gas, and formation water mixtures), fuel oil transfer, and handling heavy crude oil or bitumen.

• Chemical & Petrochemical: Perfect for transferring acids, alkalis, solvents, polymers, resins, latex, and other corrosive or sensitive chemical media.

• Food & Beverage: Widely used for sanitary transfer of chocolate, honey, syrups, dairy products, fruit pulps, and beverages, ensuring zero contamination and preserving product quality.

• Marine & Shipbuilding: Serves reliably as a cargo pump, fuel oil booster, lube oil transfer pump, and for handling oily water or sludge on various types of vessels.

• Daily Chemical & Pharmaceutical: Excellent for pumping cosmetics, creams, shampoos, ointments, and pharmaceutical suspensions where hygiene and gentle handling are paramount.