IS, IH single-stage single-suction centrifugal pump is designed according to the performance and size stipulated by the international standard IS02858 and mainly consists of the pump body (1), pump cover (2), impeller (3), shaft (5), sleeve (8), and suspension bearing components (12) and so on. IS, IH-type single-stage single-suction centrifugal pump body and pump cover part is split from the back of the impeller, the so-called rear-door structure. The advantage is easy maintenance, maintenance pump body, suction line, exhaust pipe and motor, just remove the longer coupling intermediate coupling, you can exit the rotor parts for overhaul. Pump housing (ie, pump body and pump cover) constitute the pump studio. Impeller, shaft and rolling bearings for the pump rotor. Suspension bearing components support the pump rotor components, rolling bearings to withstand radial and axial pump force. In order to balance the pump axial force, most of the pump impeller front and rear are equipped with a seal ring, and the impeller rear cover with a balance hole, due to some pump axial force is not large, the impeller is not provided on the back of the seal ring and Balance hole. Pump axial seal ring is composed of packing gland (9), packing ring (10), and packing (11), etc., to prevent air intake or a lot of water leakage. If the pump impeller is balanced, the cavity filled with soft packing is communicated with the suction inlet of the impeller. If the liquid at the inlet of the impeller is in a vacuum, it is easy to enter the air along the surface of the sleeve, so the packing ring is filled in the packing chamber Small holes in the pump cover lead the pressurized water in the pump chamber to the packing ring for sealing. Pump impeller, such as no balance hole, because the liquid pressure on the back of the impeller is greater than atmospheric pressure, so there is no leakage problem, it can not fill rings. In order to avoid shaft wear, shaft protection is provided at the shaft through the packing chamber. O-rings are fitted between the sleeve and the shaft to prevent air ingress or leakage along the mating surfaces. Pump drive by extending the elastic coupling and the motor, the pump rotation direction, from the drive side, clockwise rotation.
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