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What is the reason why pneumatic yellow oil pump doesn't pump oil? Just breathe in and out, no butter?
1, check whether the pipeline is blocked, remove the pipeline and directly add gas to see if it can't get out.

2. Another possibility is that butter is too worried about not coming out, and it will also be inhaled, discharged and not oily.

Pay attention to the use of pneumatic yellow oil pump plunger pump;

A, commonly used centrifugal pump bearing should choose what brand of grease?

Ordinary centrifugal pump bearings should use calcium-based grease or compound calcium-based grease with medium penetration, such as No.3 calcium-based grease; No.3 compound calcium-based grease; No.2 synthetic calcium-based grease and so on.

Second, the concepts of high-temperature butter and low-temperature butter, and what butter to add to the bearings of centrifugal pumps.

High temperature butter generally refers to sodium-based butter; Low temperature butter generally refers to calcium-based butter. What needs to be added to the bearing of centrifugal pump is low temperature butter, that is, calcium-based grease butter.

3. Why should high-temperature butter not be used for bearings of centrifugal pumps?

High temperature butter, that is, sodium-based butter is soluble in water (that is, it is not resistant to water erosion), so it is not suitable for centrifugal pump bearings that may enter water.