Single-stage double-suction centrifugal pump is also called single-stage double-suction split-case pump. Compared with other pumps, the most obvious feature is the two suction ports, so this type of pump usually has a large flow rate. Viewed from the motor end, the pump shaft rotates clockwise (that is, the pump water inlet is on the right). It can be changed to counterclockwise rotation as needed. Single-stage double-suction centrifugal pumps are generally suitable for use in factories, cities, mines, power stations, farmland, water conservancy projects and other fields.

Single-stage double-suction centrifugal pump parameters:

Different models of single-stage double-suction centrifugal pumps have different performance parameters. Taking 600S75 as an example, its flow rate is 850L/s, head is 75m, rotation speed is 980r/min, shaft power is 694.4kw, and impeller diameter is 5.6mm. These are its main parameters. Generally, customized centrifugal pumps also need to provide these key parameters. The following is a parameter table of conventional models of single-stage double-suction centrifugal pumps:

project	parameter
Rated voltage	24V
Rated power	1.5KW
flow	4.0 m3/h
Lift	47m
Protection level	IP55
Speed	2900r/min
Insulation level	F
Motor rated voltage	DC24V
Motor rated current	60A
Controller undervoltage	19 V
Controller operating temperature	-20℃-80℃

Single stage double suction centrifugal pump price:

Unit price: 2400~2500 yuan/unit

Lanzhong Electromechanical has the ability to design and produce various forms of DC water pumps, and can customize the structural type, rated flow rate, installation method, etc. according to customer needs. We will quote and wholesale supply based on the design and production difficulty of the water pump as well as the order quantity. Large quantity and good price are welcome to buy!

Single stage double suction centrifugal pump model:

Single-stage double-suction centrifugal pump models are generally represented by the letters S, SA, SAP, and SH, where S is the double-letter abbreviation. SA, SAP, and SH pumps are derived from S-type pumps. Their appearance is roughly the same, because the representation methods and performance parameters are slightly different in different places of origin.以下是单级双吸离心泵不同型号中字母数字所代表的意义：

①250S39A

The first set of numbers: indicates the diameter of the water pump suction inlet, DN250mm;

The second set of numbers: indicates that the rated lift of the water pump is 39 meters;

The A.B.C.D water pump impeller is cut 1.2.3.4... based on the standard model in order to meet the different needs of customers and adjust the performance parameters of the water pump by changing the impeller diameter.

②24SA-18JB

The first set of numbers: indicates that the diameter of the suction port of the water pump is divisible by 25, and the unit is inches (1 inch = 25mm). This model indicates that the suction port of the water pump is 24 inches (i.e. 600mm);

The second set of numbers: the divisor of the specific rotation number divisible by 10;

J: Indicates the change in rated speed

The A.B.C.D water pump impeller is cut 1.2.3.4... based on the standard model in order to meet the different needs of customers and adjust the performance parameters of the water pump by changing the impeller diameter.

③10SH-13

The first set of numbers: indicates that the diameter of the suction port of the water pump is divisible by 25, and the unit is inches (1 inch = 25mm). This model indicates that the suction port of the water pump is 10 inches (i.e. 250mm);

The second set of numbers: the divisor of the specific revolution number divisible by 10.

Single-stage double-suction centrifugal pump structure:

The single-stage double-suction centrifugal pump is composed of a shaft, an impeller, a snap ring, a sealing ring, a mechanical seal sleeve, a seal body, a mechanical seal, a sealing gland, a water retaining ring, a shaft sleeve, a bearing body, a bearing retaining ring, a backstop washer, a pump cover, a cylinder, a pin, a bearing oil seal and other components. The following is the structural diagram of a single-stage double-suction centrifugal pump:

Working principle of single-stage double-suction centrifugal pump:

To put it simply: the inlet liquid enters the center area of ​​the impeller at the same time, and the high-speed rotating impeller throws the liquid out under the action of centrifugal force. A low-pressure area is formed in the center of the impeller. Under the action of atmospheric pressure, the inlet liquid continuously flows to the low-pressure area, which is a cyclic process in which it enters the center of the impeller and is thrown out again.

Single-stage double-suction centrifugal pump features:

1. Compact structure, beautiful appearance, good stability and easy installation.

2. Smooth operation, the optimized design of the double-suction impeller reduces the axial force to a minimum, and has a blade shape with excellent hydraulic performance. The inner surface of the centrifugal pump casing and the impeller surface have anti-cavitation properties.

3. The bearings are selected from SKF and NSK bearings to ensure smooth operation, low noise and long service life.

4. The shaft seal should be mechanical seal or packing seal. It can be confirmed that there is no leakage after 8000 hours of operation.

5. No adjustment is required during assembly, and it can be installed discretely or horizontally according to on-site usage conditions.

6. Installing a self-priming device can realize automatic water absorption, that is, there is no need to install a bottom valve, no vacuum pump, no backflow, and the centrifugal pump can be started.