The main parts of ISR series single-stage single suction hot water centrifugal pump include pump body, impeller, pump cover, suspension components, mechanical seal components, shafts, etc.

This series of pumps are of the rear door structure, which has the advantage that it is unnecessary to disassemble the pipeline for the maintenance or replacement of the rotor components, and the rotor components are supported by the suspension (please refer to the ISR pump structure diagram).

Balance of the axial force of the pump. For pumps with large axial force, the impeller is equipped with a balance hole, and the rest of the axial force is borne by the bearing.

The shaft seal is an unbalanced single end mechanical seal. A water cooling jacket is set outside the shaft seal. External cold water can be connected through the 1/4 pipe interface on the side of the pump to cool the shaft seal.

The pump is directly connected with the motor through the coupling. From the driving direction, the pump rotates clockwise.

Installation and removal

1、 Product Overview

ISR series single-stage single suction hot water centrifugal pump is a derivative of IS series. Its performance parameters, cavity dimensions and installation dimensions comply with ISO international standards. It uses water cooling devices and mechanical seals to ensure safe and reliable operation.

ISR series single-stage single suction hot water centrifugal pump is suitable for conveying clean water without solid particles or other liquids with physical and chemical properties similar to clean water. The temperature of the conveyed medium is between - 20 ℃ and+150 ℃. The higher working pressure of the pump is greater than 1.6MPa, and the suction inlet pressure is not greater than 0.8MPa. It is suitable for water supply and distribution in factories, mines and cities, especially in urban and rural central heating and water supply systems. The range of performance parameters is:

Flow Q: 6.3~400m3/h; Lift H: 5~125.

There are 29 basic types of ISR series single-stage single suction hot water centrifugal pumps. In order to meet the different performance requirements of users, our factory adopts the method of cutting the outer diameter of the impeller, thus increasing the specifications of ISR pumps.

2、 Model meaning

　　

3、 Structural drawing