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The Function Of The Seal Ring, The Points Should Attention When Use Mechanical Seal(3)
- Dec 26, 2018 -

Third, the mechanical seal work should pay attention to the problem

1, precautions during installation

a, pay great attention to avoid installation deviations caused by the installation

(1) The upper pressing gland should be carried out after the coupling is aligned. The bolts should be evenly supported to prevent the end face of the gland from being skewed. Check the points with a feeler gauge. The error is not more than 0.05 mm.

(2) Check the fit clearance (ie, concentricity) between the gland and the outer diameter of the shaft or bushing. The circumference should be uniform. Check the tolerance of each point with a feeler gauge to be no more than 0.01 mm.

b. The amount of spring compression should be carried out according to the regulations. It is not allowed to be too large or too small, and the required error is 2.00 mm. Over the assembly, the end face is pressed and the other end face is worn. Too small will cause insufficient specific pressure and will not seal.

c. After the moving ring is installed, it must be able to move flexibly on the shaft. After pressing the moving ring to the spring, it should be able to automatically bounce back.