IS125-100-200B (2900) centrifugal pump performance parameters
Model: IS125-100-200B(2900)
Rated flow (m3/h): 173
Rated head (m): 38
Rated efficiency (%): 77
Shaft power (kw): 23.27
Cavitation (m): 4.5
The maximum outer diameter of the impeller (mm): 188
Speed (rpm): 2900
Medium temperature: ≤80℃
Motor power (kw): 37
Motor model: Y200L2-2
Impeller steering: clockwise
Inlet and outlet caliber size: DN
Import diameter: 125
Export caliber: 100
IS single-stage single-suction centrifugal pump is designed according to the national standard ISO2858 and manufactured according to the national standard SIO199/DIS. It is used for transporting clean water or other liquids with physical and chemical properties similar to water. The temperature is not high. At 80°C. Compared with the old product, its technical indicators have an average efficiency increase of about 5%, and a cavitation margin reduced by about 2%. It is an energy-saving and efficient product with stable performance and standardized parts and dimensions. It is determined by the Ministry of Machinery Industry. Old-fashioned corrosion-resistant pumps and energy-saving and updated products that replace imported products, and improved ISA chemical pumps reorganize the composition of the unit in a more concise form (remove the extension coupling pump and the motor directly), especially for low-power units Reducing floor space, reducing infrastructure investment and facilitating maintenance are all of great significance.
IS125-100-200B (2900) centrifugal pump performance curve chart
IS125-100-200B (2900) centrifugal pump installation drawing
IS125-100-200B (2900) centrifugal pump structure diagram
IS125-100-200B (2900) centrifugal pump body and pump cover are split from the back of the impeller, which is the so-called rear-opening structure. The advantage is that the maintenance is convenient. The pump body, suction pipeline, discharge pipeline and motor are not moved during maintenance. Only the intermediate coupling of the extension coupling can be removed, and the rotor part can be withdrawn for maintenance.
The housing (namely the pump body and the pump cover) constitutes the working chamber of the pump, and the impeller, shaft and rolling bearing are the rotor of the pump. The suspension bearing part supports the rotor part of the pump, and the rolling bearing bears the radial force and axial force of the pump.
In order to balance the axial force of the pump, most pumps are equipped with sealing rings at the front and rear of the impeller, and a balance hole is provided on the back cover of the impeller. Because some pumps have little axial force, there is no sealing ring and sealing ring on the back of the impeller. Balance hole.
The axial sealing ring of the pump is composed of packing gland and packing to prevent air intake or large amount of water leakage. If the impeller of the pump is balanced, the cavity containing the soft packing is connected to the suction port of the impeller. If the liquid at the inlet of the impeller is in a vacuum state, it is easy to draw air along the surface of the shaft sleeve, so a packing ring is installed in the packing cavity to pass through The small hole on the pump cover leads the pressure water in the pump chamber to the packing ring for sealing. If the impeller of the pump does not have a balance hole, because the liquid pressure on the back of the impeller is greater than the atmospheric pressure, there is no problem of air leakage, so packing ring is not necessary. In order to avoid shaft wear, a shaft sleeve is installed at the part where the shaft passes through the packing cavity, and a ○-shaped sealing ring is installed between the shaft sleeve and the shaft to prevent air intake or water leakage along the mating surface.
Changsha Zoomlian Pump is an enterprise specializing in the production and sales of industrial water pump products such as IS125-100-200B (2900) centrifugal pumps. Since its establishment, the company has adhered to the principle of "technological innovation, customer first, and pursuit of excellence". , Continue to develop and grow; a high-quality team of "scientific management, professional organization, sound sales, and standardized services" has been formed, and it has now developed into a comprehensive enterprise integrating R&D, production, operation and service. The company has established a complete set of strict quality assurance system from design, development, production, manufacturing to service.
