filter is a fine mesh inserted in pipelines usually in the discharge side and return line usual size is mentioned in microns which is the smallest particle it can filter. Strainer is a coarse mesh inserted in the suction line usually used to protect the pumps from heavy debries.size is mentioned as holes in mesh.
Since very small needle lift is obtained in the test equipment result in an unequal pressure distribution in the cut off shaft resulting in a hard contact in a small area along with high frequency oscillations, low lubricity of test oil will increase the chance of seizure. Full lift and high lubricity of heavy oil eliminates this risk of seizure during normal operation.( Always open and clean slide type valves before testing as cold sticky heavy oil along with small clearances can cause restriction in the movement of the spindle).
Comments