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S, SH type double suction centrifugal pump

S, SH type pumps are single-stage, double-suction, and center-split casing centrifugal pumps used for pumping clean water and liquids with physical and chemical properties similar to water. For this pump type, when the head is between 9 meters and 140 meters, and the flow rate is between 126 cubic meters per hour and 12500 cubic meters per hour, the maximum liquid temperature should not exceed 80℃. They are suitable for use in factories, mines, urban water supply, power plants, large-scale water conservancy projects, agricultural irrigation, and drainage. The 48SH-22 type large pump can also be used as a circulating pump in thermal power plants.

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Centrifugal pump

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Overview

S and SH type pumps are single-stage, double-suction, horizontally split centrifugal pumps used for pumping clean water and liquids with similar physical and chemical properties. For heads ranging from 9 meters to 140 meters and flow rates from 126 cubic meters per hour to 12500 cubic meters per hour, the maximum liquid temperature should not exceed 80℃. These pumps are suitable for use in factories, mines, municipal water supply, power plants, large-scale water conservancy projects, agricultural irrigation, and drainage. The 48SH-22 type large pump can also be used as a circulating pump in thermal power plants.

Meaning of Pump Model: For example, 10SH-13A
10: The suction port diameter divided by 25 (i.e., the suction port diameter of this pump is 250 mm)
S, SH: Single-stage, double-suction, horizontal centrifugal clear water pump
13: Specific speed divided by 10 (i.e., the specific speed of this pump is 130)
A: Indicates that the pump has a different outer diameter impeller

Structural Description

The suction and discharge ports of the S and SH type pumps are both located below the pump shaft centerline in a horizontal direction, perpendicular to the axis. The pump cover is fixed to the pump body using double-headed bolts and conical locating screws, allowing for easy opening to inspect all parts inside the pump without removing the inlet and outlet pipes or the motor. Therefore, maintenance is extremely convenient. Viewed from the direction of rotation, SH type pumps rotate counterclockwise; S type pumps rotate clockwise.

The main parts of the S and SH type pumps are: pump body (1), pump cover (2), impeller (3), shaft (4), double suction sealing ring (5), shaft sleeve (6), bearing housing (14).

Pump body (1): Made of cast iron. Forms the impeller chamber together with the pump cover. The flanges of the inlet and outlet flow passages have pipe screw holes for installing vacuum and pressure gauges. A pipe screw hole for draining is located at the lowest point of the neck.
Pump cover (2): Made of cast iron. The upper part has pipe screw holes for installing the water seal pipe and vent pipe, and a hook for lifting the pump cover.
Impeller (3): Made of cast iron, with a symmetrical shape and twisted blades between the two walls. The liquid enters the impeller from both sides. It undergoes static balance testing during manufacturing.
Shaft (4): Made of high-quality carbon steel. The impeller is located in the center of the shaft and is fixed using a key, shaft sleeve, and shaft sleeve nuts on both sides. The right end of the shaft is for installing the coupling, and is connected to...

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