Single-stage pump is characterized by a pair of couplings arranged between the motor output shaft and the pump shaft, and a guide bearing mounted on the bearing housing to assist in supporting the pump shaft. The pair of clamp type The couplings are respectively rigidly connected with the motor output shaft and the pump shaft, leaving a space between the motor output shaft and the pump shaft for facilitating the mechanical seal and the mechanical seal gland assembly and disassembly. It is not necessary to dismantle the motor and pump cover when repairing or replacing the mechanical seal. Single-stage pump in the single-stage centrifugal pump is started before the pump filled with liquid to be transported; start, start, the impeller driven by the shaft at high speed rotation, the fluid between the blades must also be with the rotation. Under the action of centrifugal force, liquid is thrown from the center of the impeller to the outer edge and gains energy, leaving the outer edge of the impeller to enter the scroll casing at a high speed. In the volute, the liquid due to the gradual expansion of the slowing down, but also part of the kinetic energy into static pressure, and finally to a higher pressure into the discharge pipe, to the required place. When the liquid flows from the impeller center to the outer edge, a certain vacuum is formed in the center of the impeller. Since the pressure above the liquid level in the sump is greater than the pressure at the inlet of the pump, the liquid is continuously pressed into the impeller. Visible, as long as the impeller constantly rotating, the liquid will be continuously inhaled and discharged. With the rapid development of China's industrial development, the use of the pump is more and more widely used. Single-stage pump is still widely used range, but as the centrifugal pump continues to increase competition, how to maintain the competitive advantage of single-stage pump. There are still many things that need to be done. It is a very convenient way to improve and enhance its working principle. Products only easy to use, the obvious characteristics, applicability and strong may be able to maintain certain advantages. Related articles: Centrifugal pump features Centrifugal pump performance parameters