12SH-19A; SH single-stage double-suction centrifugal pum

Single-stage double-suction horizontal centrifugal pump S, SH type horizontal double-suction pump S type single-stage horizontal double-suction pump

(I) Introduction to single-stage double-suction horizontal centrifugal pump
Single-stage double-suction horizontal centrifugal pumps can be used to pump clean water and liquids with physical and chemical properties similar to water. Single-stage double-suction horizontal centrifugal pumps can be used for 9-140 meters head, flow rate of 126-12500m3/h, the maximum liquid temperature shall not exceed 80℃, suitable for factories, mines, urban water supply, power stations, large-scale water conservancy projects, farmland irrigation and drainage.

(II) Structural description of single-stage double-suction horizontal centrifugal pump
The suction port and discharge port of the single-stage double-suction horizontal centrifugal pump are both below the axis of the water pump, and are perpendicular to the axis and in a horizontal direction. There is no need to disassemble the inlet and outlet water pipes and motor during maintenance. From the transmission direction, it rotates clockwise (it can also be changed to counterclockwise according to user needs). The main parts are: pump body, pump cover, impeller, shaft, double-suction sealing ring, sleeve, etc. The pump body and pump cover of the single-stage double-suction horizontal centrifugal pump constitute the working room of the impeller. On the inlet and outlet flanges, there are pipe screw holes for installing vacuum gauges and pressure gauges. The lower part of the inlet and outlet flanges of the water pump is provided with pipe screw holes for draining water. The impeller that has been statically balanced is fixed on the shaft with a sleeve and sleeve nuts on both sides, and its axial position can be adjusted through the sleeve nuts. The pump shaft is supported by two single-row radial ball bearings. The bearings are installed in the bearing body and at both ends of the pump body, and are lubricated with grease. The sealing ring is used to reduce the water leakage from the pressure chamber of the water pump back to the suction chamber. The single-stage double-suction horizontal centrifugal pump is directly driven by the motor through an elastic coupling, and can also be driven by an internal combustion engine when necessary. The shaft seal of the single-stage double-suction horizontal centrifugal pump is a soft packing seal (mechanical seal structure can be used according to user needs).

(III) Meaning of single-stage double-suction horizontal centrifugal pump model
12SH-19A
12————The diameter of the water intake is 12 inches;
S, SH————single-stage double-suction horizontal centrifugal pump;
19————speed divided by 10;
A————Pump impeller cutting classification