We usually choose to use when transporting smooth oil and grease media Screw pump Maybe KCB Gear pump The two pumps have their own advantages and disadvantages. If the viscosity of the medium to be transported is relatively high, we can only use gear pumps to transport it. If it is used to transport some smooth grease, then both pumps can actually be used for transportation, but the smooth oil or grease should contain no impurities as far as possible, Otherwise, the pump will be damaged to a certain extent. Assuming that there are requirements for the sealing function, the screw pump can be equipped with a mechanical seal for transportation

IMO screw pump Selection skills of KCB gear pump

1. KCB gear pump does not have strict requirements on the viscosity of smooth oil, but the viscosity of screw pump can only reach 760cst, so KCB gear pump is required when the viscosity of smooth oil is high

2. KCB gear pump cannot be used to transport some smooth oil with solid impurities, so it is assumed that single screw pump is required when there are many impurities in the smooth oil

3. KCB gear pump and Three screw pump Professionally transport smooth oil and other media with smooth properties, so the two pumps are ideal choices as smooth pumps, but when there are impurities in the smooth oil, the pump will be damaged

four IMO agent As a smooth oil pump, its pressure is higher than that of KCB gear pump, and its efficiency is relatively high. Another major feature of this pump is that it has no pulsation and low noise

5. The mechanical seal is used as the shaft seal, and its sealing liquid pressure is generally 0.1Mpa higher than the pressure of the sealing chamber, so the pump with good sealing function should be selected, and the screw pump should be selected to be equipped with mechanical seal

6. Smooth grease is generally in semi-solid condition, so in view of its condition and viscosity, single screw pump or twin screw pump is generally used to transport smooth grease

7. KCB gear pump is selected to transport smooth oil. Generally, the shaft seal is equipped with packing seal. The packing seal is a kind of wearing part that needs regular maintenance or replacement, and its cost is low

8. Among KCB gear pumps, the circular arc gear pump is better than the involute gear pump. The former has low wear, low noise and relatively long service life

9. When the smooth oil contains trace impurities, the twin-screw pump is suitable