The LG vertical screw pump is a type of rotary vane pump, primarily used for transferring high-viscosity fluids. It falls under the category of vertical screw pumps and is also known as a thick slurry pump. The LG vertical screw pump transfers liquids by creating volume changes in the suction and discharge chambers through the interlocking of screws and sleeves. Its working components include sleeves (stators) with double-headed spiral cavities and a single-headed spiral screw (rotor) that mates with them within the stator cavity.

Operating Principle

The LG vertical screw pump operates by the interaction of the screw and sleeve, forming sealed cavities. These cavities move axially at a constant speed without changing their volume, transporting the medium from the suction end to the discharge end. As the screw rotates, the volume of a working chamber near the suction chamber gradually increases, creating a vacuum and drawing the liquid into the working chamber. As the screw continues to rotate, the working chamber expands and seals, pushing the liquid axially towards the discharge chamber. The upper and lower working chambers alternate in cycles, suctioning and discharging the liquid, thereby achieving continuous conveying.

Application Scenario

The LG vertical screw pump is suitable for transporting high-viscosity media, particularly for media containing suspended solid particles, long fibers, or entrained gases. It is widely used in industries such as chemicals, petroleum, and food processing, capable of handling high-viscosity fluids with self-priming characteristics, allowing it to吸入 and transport‌ liquid media.

Performance Features

Advanced structure, superior performance: Equipped with a low-pressure balance device using master and slave rods in the axial direction, the force distribution is even, operation is reliable and stable, pulse-free, and low noise.

Sealed Reliably: Mechanically sealed for excellent sealing performance, with no leakage.

Easy Maintenance: The pump structure is simple and compact, with the pump core assembly removable as a whole for easy maintenance and repair.

Safety Protection: Equipped with a safety valve to instantly protect the pump and prevent overload.