Sanitary pump mechanical seal.

Refers to the mechanical seal by at least a pair of end face perpendicular to the rotation axis in fluid pressure and compensating unit elasticity (or magnetic force) and with the cooperation of the auxiliary seal under the action of keep post merger relative sliding and prevent fluid leakage of equipment. The auxiliary seal used in general mechanical seal is the mechanical seal of the gold property bellows, in the light seal, and the use of the bellows for auxiliary sealing.

Mechanical seal shaft sealing device is a kind of rotating machinery, such as centrifugal pumps, centrifuge, the reaction kettle, compressor and so on, these special device, as a result of the transmission shaft through equipment inside and outside, in this way, shaft between the device is a peripheral clearance, equipment of medium will leak out through trainee, if internal pressure is less than the atmospheric pressure, air will enter into mechanical, so they must have one to prevent leakage of shaft seal device. There are many kinds of shaft seals, because mechanical seals have little leakage and long life. Therefore, mechanical seals are the main shaft sealing methods in these devices.

Mechanical seal is also called end face seal, which is defined in the national standard. By at least a pair of end face perpendicular to the rotation axis in fluid pressure and elastic (or magnetic force) the role of compensation institutions and with the cooperation of the auxiliary seal up keep post merger relative sliding and prevent fluid leak device. Throughout the &;

Sanitary pump mechanical seal installation requirements.

1. Pay great attention to avoid the installation deviation caused by installation.

(1) the upper pressure cover shall be carried out after the coupling is found. The bolts shall be evenly supported to prevent the deflection of the end face of the gland, and check the points with the plug gauge, and the error shall not be greater than 0.05mm.

(2) check the clearance between the pressure cover and the shaft or the outer diameter of the shaft sleeve (that is, the concentricity), and be evenly spaced, and check the allowable difference of each point with the feeler of the gauge not greater than 0.01 mm.

2. The spring compression should be carried out according to the regulation, and it is not allowed to be too large or too small, and the error is 2.00 mm. After the assembly increases the end face ratio pressure, accelerates the end surface wear. Too small will result in less pressure than pressure.

3. After the moving ring is installed, it should be able to bounce back automatically after pressing the moving ring to the spring.

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