The denitration special pump mechanical seal installation technical requirements

In the chemical production, sold out special pump mechanical seal material is critical. Due to the difference of pump transmission medium, and structure types of different lead to the selection of the mechanical seal material according to the specific situation to decide. Out of stock for material selection of water pump mechanical seal way normally is very complex, depending on the medium for the selection of dynamic and static ring materials also each are not identical, and the installation of the mechanical seal has its technical requirements.

sold out special pump mechanical seal installation using the technical requirements of

1) Mechanical seal parts of the shaft or the diameter of the shaft sleeve is commonly ￠10 ~ 50 mm radial run-out tolerance is 004 mm, when greater than 50 ~ 120 mm in the radial tolerance is 006 mm. On the premise of meet the technical standards, the surface roughness of the shaft or sleeve diameter tolerance is h6

2) The shaft of the axial momentum light rain or equal to 02 mm.

       3) Shaft, shaft sleeve and seal cavity of end face should be the existence of the chamfer. Under normal circumstances, the diameter of axle is less than 30 mm Φ, is 3 x 10 °. And when the diameter of axle is greater than 30 mm Φ is 4 x 10 °.

       4) Once problem with medium and high or low temperature, or is mixed other impurities, toxic particles, prone to spontaneous combustion and explosion, it must take urgent to solve the following methods: filtering, washing, cooling, sealing, etc.

5) Depending on the spring drive mechanical seal attention to the spin to the spring. That is to say, the spring to under the condition of seal should be more and more tight. And spring is usually the way: from static ring to ring, shaft clockwise rotation by right-lateral spring, and when the counterclockwise to adopt should use the left-hand spring.

sold out special pump mechanical seal installation requirements

1) Before the installation of mechanical seal shall be to testing and cleaning of equipment of the sealing, to ensure good sealing conditions, also want to prevent the dust and impurities of the infection. Check whether the mechanical seal of dynamic and static ring face is in good condition, with or without scratches, cracks, etc. Flatness deviation shall not be greater than zero. 004mm。

       2) During the installation process should be kept between the sealing surface cleaning and sealing surface to ban the use of hard goods and appliances to knock such action, lest its sealing function failures due to damage.

       3) When installation should transfer the shaft of the sealing ring and place daub lubricating oil such as molybdenum disulfide, so as to smooth installation.

is important to emphasize that, in view of the different materials of mechanical seal, the use of lubricating oil are also different, be sure to prevent due to incorrect embellish haun friend its aging degree aggravate, or o-rings oiled expansion, thus ensuring effective seal.

       4) Installing a static ring, quiet ring should be smooth and uniform pressure static ring inside, should maintain a level of static ring sections. During the installation process, should maintain static ring sealing surface and gland hole vertical centerline. In addition, a positioning pin of static gland ring, it is important to note that when installation on the bayonet positioning pin and static ring.

       5) Static ring gland installation, screw must be uniform, in the process of twisted a to ensure that the end of the vertical axis and static ring.

       6) After installation, on the axis in a ring to elastic easy operation without any pressure for the best.

       7) On the premise of full of medium, the equipment to avoid friction and normal operation, in order to ensure the effectiveness of the seal.

       8) When particles, easy to crystallization, the medium temperature above 80 ℃, must be related to its not for flushing, cooling and filtering, thus ensuring the sealing

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