Product overviewIs type single-stage single suction (axial suction) centrifugal pump is an energy-saving pump jointly designed by the whole country. It is an update of Ba type, B type and other single-stage clean water centrifugal pumps. The advantages of single-stage single suction centrifugal pump are: reasonable layout of hydraulic performance of the whole series, wide selection range of users, convenient maintenance, and international average advanced level of efficiency and suction head. This type of pump is suitable for industrial and urban water supply and drainage, agricultural drainage and irrigation, as well as conveying clear water or other liquids with physical and chemical properties similar to clear water. The temperature is not higher than 80 ℃.Is and IR pumps are Horizontal single-stage single suction water centrifugal pumps, which are used in industry, agriculture, city, drainage, fire water supply, etc. For suction and delivery of clear water and similar physical and chemical properties of water without solid particles of liquid. It is widely used in industry, agriculture and city, drainage, fire water supply, etc. The is and IR pumps are designed according to the performance and dimensions specified in the international standard is02858. Their technical standards are close to the international standards and reach the international advanced level. It is one of the energy-saving pump products promoted in China. The pump has the advantages of simple structure, reliable performance, small volume, light weight, good cavitation resistance, low power consumption and convenient maintenance. The is and IR pumps are widely used. There are 140 specifications in the whole series, but only four kinds of shafts are used. The shafts, bearings and shaft seals of the same specification can be interchanged. There are only four kinds of suspension in the whole series. Pump speed is divided into 2900 and 1450 rpm. The performance is as follows: 2900 RPM 1450 RPM large flow rate: 240m3 / min 400m3 / min high total head: 125m 55m high speed: 3500 rpm (when used for 60 wave power supply, impeller diameter is reduced) high working temperature: 80 ℃, allowable suction pipeline pressure 0.3MPa, high pump pressure 1.6Mpa.Product features1. The is single-stage single suction centrifugal pump is designed according to the performance and dimensions specified in the international standard ISO2858. It is mainly composed of pump body, pump cover, impeller, shaft, sealing ring, shaft sleeve and suspension bearing.2. The pump body and cover of is single-stage single suction centrifugal pump are dissected from the back of impeller, which is commonly known as back door structure. It has the advantages of convenient maintenance. The pump body, suction pipeline, discharge pipeline and motor are not moved during maintenance. The rotor part can be removed for maintenance only by removing the intermediate connector of the extended coupling.3. The housing of the pump (i.e. pump body and pump cover) constitutes the working chamber of the pump. Impeller, shaft and rolling bearing are the rotors of the pump. The suspension bearing supports the rotor part of the pump, and the rolling bearing is subjected to the radial and axial force of the pump.4. In order to balance the axial force of the pump, the front and back of the impeller of most pumps are equipped with sealing rings, and there are balance holes on the back cover plate of the impeller. Because the axial force of some pumps is small, there are no sealing rings and balance holes on the back of the impeller.5. The axial sealing ring of pump is composed of packing gland, packing ring and packing to prevent air intake or large amount of water leakage. If the impeller of the pump is balanced, the cavity with soft packing is connected with the suction port of the impeller. If the liquid at the inlet of the impeller is in a vacuum state, it is easy to enter the air along the surface of the shaft sleeve. Therefore, a packing ring is installed in the packing cavity. Through the small hole on the pump cover, the pressure water in the pump chamber is led to the packing ring for sealing. If there is no balance hole in the impeller of the pump, because the liquid pressure on the back of the impeller is greater than the atmospheric pressure, there is no air leakage problem, so the packing ring can not be installed.6. In order to avoid the wear of the shaft, a shaft sleeve is installed at the position where the shaft passes through the packing chamber. There must be an O-ring between the shaft sleeve and the shaft to prevent air intake or water leakage along the mating surface.7. The transmission mode of the pump is connected with the motor through the lengthened elastic coupling. The rotation direction of the pump is clockwise from the driving end.