Material selection of stainless steel double suction centrifugal pump shaft: according to the working characteristics and stress of double suction centrifugal pump shaft, carbon steel and alloy steel with better fatigue resistance should be considered in material selection. The comprehensive mechanical properties of these materials are better. If the speed of the double suction pump is not high, the temperature and pressure of the conveying medium are not high, the pump shaft can be used with carbon steel. When the speed is high and the temperature and pressure of the conveying medium are high, the alloy steel with high mechanical strength can be selected for the pump shaft.

Type selection of impeller material for stainless steel double suction centrifugal pump: according to the use and corrosion of double suction pump, the materials used to make impeller of middle pump impeller are also different.

1, the transport medium temperature is relatively low, the pressure is not large, the medium is clean, no corrosion effect, the impeller is mostly made of cast iron or cast steel, and then machined.

2, conveying acid, alkali and other corrosive media, the impeller is multi - use corrosion resistant materials, such as acid resistant ferrosilicon, bronze, stainless steel, etc. Alcohol pump

3. If the conveying medium is above 400 degrees, the impeller must be used in high temperature resistant stainless steel or alloy steel. Material selection: manufacturing sliding bearings manufacturing sliding bearings, bushings with in bearing surface, it can play a role in wear resistance under pressure and pump. The bearing and bearing cover can be made by grey cast iron because it only plays the role of the bearing of the pump. Large load pumps are made of cast steel. In order to be easy to lubricate, the oil hole or oil groove should be opened on the surface of the axle bush. In addition to ensuring lubrication, the lubricating oil can also play the role of cooling, antirust, vibration absorption and so on, making the double suction pump shaft bear large impact and load.

The coupling of stainless steel double suction centrifugal pump: the coupling is a coupling part connected to the prime mover shaft of the double suction centrifugal pump shaft, which makes the prime mover of the pump become a whole. When the prime motor rotates, the pump also rotates and transfers the torque at the same time. The coupling of wheel. The dual suction pump shaft coupler is divided into two types, fixed and movable. In the fixed installation, it is necessary to show that the two axes are strictly in pair, and the relative displacement can not occur when the pump is running.

• Print
• Close This Page
• Recommendation：
• 
• Browse：