Working principle and characteristics of split case pump

• How it works

The components of the split case pump are the impeller and the pump casing. The impeller has multiple backward curved blades, which are fixed on the pump shaft and driven by the motor to rotate at high speed with the pump shaft.
When the split case pump is started, the pump shaft drives the impeller to rotate at high speed, forcing the liquid pre-filled between the blades to rotate. Under the action of inertial centrifugal force, the liquid flows from the center of the impeller to the periphery. The energy obtained by the liquid flowing through the impeller increases the static pressure energy and the flow rate. When the liquid leaves the impeller and enters the pump casing, the flow channel in the casing gradually expands, the flow rate gradually slows down, and part of the kinetic energy is converted into static pressure energy, which flows into the discharge pipe along the tangential direction.
The split case pump shaft is supported by two single-row radial ball bearings, which are installed in the bearing bodies at both ends of the pump body and lubricated with butter. Double suction sealing rings are used to reduce water leakage from the pump pressure chamber to the suction chamber. The water pump is directly driven by the motor through the coupling. The shaft seal is a soft packing seal. In order to cool and lubricate the sealing chamber and prevent air from leaking into the pump, a water seal ring is provided between the packings. When the pump is working, a small amount of high-pressure water flows into the packing chamber through the water seal pipe, acting as a water seal.

• Main Features

Split case pumps are common in various industries and they are widely adopted due to their excellent features. They are practical, efficient, durable and easy to maintain. Here are some of the main features of split case pumps that make them ideal for different applications.

Firstly, split case pumps are favored for their high flow rates. They are designed to move large volumes of liquids, making them ideal for applications such as water supply, irrigation and firefighting. Split case pumps have higher capacities compared to other pumps and can handle more fluids at once, a feature that allows them to achieve faster and more efficient operation.

Secondly, split case pumps offer balanced axial loads. Their design enables them to generate a steady axial force that can handle unbalanced forces that can cause other pumps to oscillate or vibrate. By maintaining a balanced load, split case pumps ensure smooth operation, reduced wear and extended service life.

Another feature of split case pumps is their flexibility. They have a wide range of applications, from residential to industrial use, and can handle different types of liquids, including chemicals, oil and water. They are also suitable for pumping viscous liquids, and this versatility makes them a great choice for different industries and applications.

In addition, split case pumps are easy to maintain. They are simple in design and require minimal maintenance, making them an affordable choice for businesses. Their parts are readily available, which means that parts repair and replacement can be done quickly and efficiently, minimizing downtime and saving costs.

In addition, split case pumps are energy-efficient. They require less energy to operate than other types of pumps, which means lower electricity bills and a smaller carbon footprint. They are also well suited for use in systems that require high efficiency, such as those used for water supply and irrigation.

In summary, split case pumps are known for their efficient and durable characteristics, making them a popular choice for different industries. They have unique features such as high flow rates, balanced axial loads, flexibility, easy maintenance, and energy efficiency. Therefore, anyone looking for an efficient and reliable way to handle large volumes of fluids should consider using a split case pump.