Single Stage Centrifugal Pump

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SS(R) series single-stage centrifugal pump

SS pump is a single-stage single-suction centrifugal pump, using international standard IS02858 design, is B, BA type pump replacement products. Simple structure, small size, light weight, good cavitation resistance, low power consumption, and convenient use and maintenance. It is suitable for industrial and urban water supply and drainage, and can also be used for agricultural irrigation and drainage. For the delivery of clean water, physical and chemical properties similar to other liquids used for water, the temperature does not exceed 80 ℃.

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Description
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Technical Drawing
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Product overview
- SS pump is a single-stage single-suction centrifugal pump, which is the replacement of B and BA pumps. Suitable for industrial and urban water supply, drainage, can also be used for agricultural irrigation and drainage. For the delivery of clean water, physical and chemical properties similar to other liquids used for water, the temperature does not exceed 80 ℃.
- SSR type is a series of hot water pumps designed by our company according to the performance and size specified in international standard IS02858. It is suitable for hot water boiler feed water, hot water circulation system, industrial and urban water supply, drainage and irrigation, but the temperature does not exceed 150 ℃.
- It is mainly composed of pump body, pump cover, impeller, shaft, sealing ring, shaft sleeve and suspension bearing parts. The pump body and the pump cover part are divided from the back of the impeller, which is commonly referred to as the rear door opening structure. Its advantage is that it is convenient to repair, and the pump body and suction pipeline can be repaired without moving during maintenance.
Working conditions
- Diameter: 50-200mm
- Flow range: 4-480m ³/h
- Head range: 5-135m
- Speed: 1450-2900r/min
- Temperature range: ambient temperature is generally ≤ 80 ℃
- Material: cast iron, stainless steel
Model meaning

Selection of pump

When selecting the specifications of the pump, the user should pay attention to the following points:
- The flow rate of the selected water pump should be less than the normal water yield of the well or other water source, and the dry season should be properly considered.
- The head of the pump should be selected according to the actual needs of the head, and consider the pipeline loss of the pump.
- When selecting the pump, the temperature of the conveying liquid should be considered, which should be less than the specified temperature.
- When selecting the water pump, the installation height of the water pump should be considered, that is, the vertical distance from the suction surface to the axis of the water pump should be less than the height specified by the water pump:
Estimation of pump installation height Hsz:
H_sz≤ H_v－ F_v-△H_s－[NPSH]
H_sz≤10.09-△H_s－[NPSH]
In the formula: Hv = 10.33(m) standard atmospheric pressure. (water column)
F_v= 0.2 4 (m) normal temperature water (20 ℃) vaporization pressure (water column)
△H s = suction pipeline loss, calculated according to the actual situation.
[NPSH]= NPSH in minutes.
[NPSH]=[NPSH]_r0 . 3 (m)
[NPSH]_r= Required NPSH given on the performance parameter table.

Product Structure
- IS type pump is designed according to the performance and size specified in international standard ISO2858. It is mainly composed of pump body, pump cover, impeller, shaft, sealing ring, shaft sleeve and suspension bearing parts.
- The pump body and pump cover part of the IS pump are split from the back of the impeller, which is commonly referred to as the rear door structure. Its advantage is that it is convenient to repair, and the pump body and suction pipeline can be repaired without moving during maintenance.
- The housing of the pump (I. e. the pump body and the pump cover) constitutes the working chamber of the pump. The impeller, shaft and rolling bearing are the rotor of the pump. The suspension bearing component supports the rotor component of the pump, and the rolling bearing receives the radial and axial forces of the pump.
- In order to balance the axial force of the pump, most pumps are equipped with sealing rings before and after the impeller, and a balance hole is provided on the back cover of the impeller. Because the axial force of some pumps is not large, the back of the impeller does not have a sealing ring and a balance hole.
- The axial seal of the pump is composed of packing gland, packing ring and packing to prevent air intake or a large amount of water leakage. If the impeller of the pump has a balance hole, the cavity of the soft packing is connected with the suction port of the impeller. If the liquid at the inlet of the impeller is in a vacuum state, it is easy to enter the air along the surface of the shaft sleeve. Therefore, a packing ring is installed in the packing cavity, and the pressure in the pump chamber is introduced to the packing ring for sealing through the small hole on the pump cover. If the impeller of the pump does not have a balance hole, the liquid pressure on the back of the impeller is greater than atmospheric pressure, so there is no air leakage problem, so the packing ring may not be installed.
- The axial seal of the pump is composed of a machine-sealed shaft sleeve, a machine-sealed gland and a mechanical seal, which can achieve a more reliable seal. Packing seal and mechanical seal two forms, can be selected according to user needs. It should be noted that because the special material of the mechanical seal has the characteristics of high temperature resistance, users are now mostly used as hot water pumps, which are simple, convenient and practical compared with hot water circulating pumps.
- ISR type hot water circulating pump is based on the gifted type in order to adapt to the design of high temperature liquid transport water cooling device. It is composed of a pump cover, a water-cooled chamber ring cover and a water-cooled hose joint. The pump cover and the water-cooled chamber ring cover form a water-cooled chamber, and the two O-rings on the water-cooled chamber ring cover play a sealing role. In order to realize water cooling, cooling circulating water can be injected into the water cooling chamber through the lower one of the two water cooling hose joints to cool the filling chamber, pump shaft and packing, and the other water cooling hose joint is used to recover the cooling water. If the cooling effect is not ideal, a cold water can be introduced into the filling chamber (see Figure 1 through the filling chamber joint). In order to prevent the filling chamber from entering the air, the company's products will block this hole with G ¼ wire plug when leaving the factory, and users can change into G ¼ cold water joint when needed. The water cooling pressure P≈ 0.15- 0.3MPa, the water seal requirement for the filling chamber is 0.2-0.3 m3/n, and the cooling circulating water volume is 0.3-0.1 m3/n. The above water consumption is for reference only, and the user can adjust it according to the actual situation. The company's products are factory according to the packing seal supply, such as the user needs mechanical seal, can be indicated when ordering.
- In order to avoid shaft wear, the shaft through the packing cavity is equipped with shaft sleeve protection. O-ring is installed between the shaft sleeve and the shaft to prevent air intake or water leakage along the mating surface.
- The transmission mode of the pump is connected with the motor through the elastic coupling. The direction of rotation of the pump, viewed from the drive end, is clockwise.
- The dimensions of the pump are shown in Figure 1 and Table 2, and the flange dimensions of the suction and discharge ports of the pump are shown in Figure 3 and Table 4. If the reducer pipe is used, that is, when the suction pipe diameter is the same as the discharge pipe diameter, the connection size of the discharge port flange is the same as that of the suction port flange.
Figure 1

Table 2

Figure 3

Table 4

Industry Applications

Suitable for industrial water supply and drainage

Suitable for urban water supply and drainage

Applicable to urban high-rise building pressurization

Suitable for electric power industry

Suitable for agricultural irrigation, etc.

Suitable for food, pharmaceutical and synthetic fiber industries
Our products are widely used in metallurgy, mining, electric power, coal, petroleum, chemical, environmental protection, building materials, municipal and other industries, long-term service in the domestic well-known high-end customer base, including:ChinaHuadian,ChinaDatang Group, Datang International,ChinaHuaneng,ChinaState Investment,ChinaGuodian, Hebei Iron and Steel Group, Shandong Iron and Steel Group Rizhao Iron and Steel, Kunming Iron and Steel, Baotou Iron and Steel, Benxi Iron and Steel Group, Tianjin Iron and Steel Group, Jiuquan Iron and Steel, Kunming Iron and Steel, Handan Iron and Steel, Hebei Xuangang, Anyang Iron and Steel, Tangshan Iron and Steel Group, Donghai Iron and Steel, Yanshan Iron and Steel, Jiujiang Wire, Jiujiang Pinggang, Donghai Special Steel, etc.

Application of SS Series Centrifugal Pump in Industrial Water Supply and Drainage

Application of SS Series Centrifugal Pump in Urban Water Supply and Drainage

Application of SS Series Centrifugal Pumps in Urban High-rise Buildings

Application of SS Series Centrifugal Pump in Electric Power Industry

Application of SS Series Centrifugal Pump in Agricultural Irrigation

Application of SS Series Centrifugal Pump in Food Pharmaceutical and Synthetic Fiber Industry

Model meaning