1. Product Introduction

SOWSeries single-stage double suction mid opening snail shell typecentrifugal pumpBy using prototype impellers and modified impellers and their cutting, the profile is full and wide, the efficiency is high, and within the performance range of the profile, it can provide water pumps with any flow head working point that appropriately meets the needs of users.

The SOW pump adopts a hydraulic model that can self balance axial and radial forces, with stable performance, high efficiency, compact structure, low vibration, high pump body pressure resistance, and easy installation and maintenance.

2. Product Usage

The SOW series products are widely used in water plants, irrigation, drainage pump stations, power stations, air conditioning circulating water, industrial water supply systems, fire protection systems, shipbuilding industry, and should be suitable for general use in the oil refining industry

3. Performance Range

Pump outlet diameter: DN80-800mm

Pump flow range: Q<11600m3/H

Pump working pressure: P<2.5MPa

Pump operating temperature: T<105 degrees

Working voltage: U=380V, 6KV, 10KV

4Hydraulic performance

Utilizing advanced computer-aided software internationally and adopting modern design methods (i.e. optimization design and reliability design methods) for hydraulic and structural design of pumps, SOW typeDouble suction pumpThis series of products has high efficiency and significant anti cavitation performance. Compared with similar domestic products, the efficiency is 2-4 percentage points higher, and the cavitation performance is also significantly improved, which will save a lot of money for users.

5. Structural performance

Compact structure, small footprint, large axial size, low compression vibration, and low noise. The main measures taken to reduce vibration and noise are as follows: the pump casing adopts a double volute structure, the rotor components have short axial dimensions and good rigidity, and the pump shaft is supported by imported high-precision bearings

6. Sealing performance

The sealing structure is good, and the mechanical seal friction pair is made of colored graphite and tungsten carbide, or the filler is tightly filled without leaking, with a long service life.

7. Working conditions

The maximum working pressure of the SOW volute double suction pump system is 2.5 MPa, which means that the pump suction pressure+pump head is less than 2. 5MPA， The static pressure test pressure of the pump is 3. 75MPA。 According to the maximum pressure that the pump body can withstand, the materials of the pump body and pump cover are gray cast iron (1.6MPA), ductile iron (2.0MPA), and cast steel (2.5MPA). This series of pumps delivers clean water or other liquids with physical and chemical properties similar to clean water at a temperature T<105.

8. Structural description

The SOW series pump is a horizontally split structure, with the suction and discharge ports located below the pump axis and perpendicular to the axis in a horizontal direction. This type of pump does not require disassembly of the inlet and outlet pipelines during maintenance, making disassembly and maintenance convenient. The rotor is a composite component that can be lifted as a whole for easy maintenance, and the same rotor component can be used for reverse rotation. High precision imported deep groove ball bearings are selected for both ends of the bearing, which run smoothly, have low noise, long service life, and are lubricated with grease. There are two types of shaft seals, mechanical seals or packing seals, which users can choose from.

Performance and characteristics

Compact structure, small footprint, small axial size, low vibration and noise, rotor components, short axial size and good rigidity, pump shaft supported by high-precision bearings.