Various centrifugal pump mechanical seal damage and how to use and classification: The main reasons for the damage of the mechanical seals of various centrifugal pumps are as follows: A. There are solid particles in the working face of the machine seal; B. The horizontal centrifugal pump will catch the spring when the material is cooled and solidified, resulting in the pipeline pump. The damage of the mechanical seal; C, the presence of solid phenol between the static ring and the moving ring, resulting in the formation of oil film can not form, wear is increased; D, evacuation, cavitation or long time rolling, resulting in seal damage; E, the actual centrifugal pump The output is too small, a large number of media pumps circulate, heat accumulates, causing gasification of the medium, resulting in seal failure; F, large return flow, resulting in the bottom of the suction side container (tower, kettle, tank, pool) sediment, Damaged seal; G, stop for a long time, there is no manual disk impeller when restarting, the sealing surface is broken due to adhesion; H, single end or double end, the washing method is not correct; I, corrosive, polymerization in the medium Increased sexual and gelatinous substances; J. Frequent changes or adjustments in working conditions. K, the ambient temperature changes abruptly; the method and suggestion to avoid the mechanical seal damage by using the pipeline centrifugal pump: 1. Use a single spring seal; 2. Full preheating before the pipeline centrifugal pump is operated to ensure the spring return elastic force is used; 3. The operation is completed After cleaning as much as possible; 4. Reduce the change of working conditions, operation and maintenance are carried out according to the standard; 5. Add sealing oil to flush the pipeline centrifugal pump, which can prolong its service life. Thank you for visiting our Haitan Pump Co., Ltd. If you have any problems with the pump, we will do our best to provide you with quality service. Walnut Sunflower Seeds,Powder Of Soy Sauce,Instand Soy Powder,Sunflower Seeds Shanghai Sinospices Sourcing Ltd , https://www.garlicall.com
Classification of mechanical seals:
According to the rotation or static of the spring element, it can be divided into: a rotary internal flow unbalanced single-end seal, referred to as a rotary type; a static external flow internal balance type single-end seal, referred to as a static type.
The static ring is located inside or outside the sealing end face and can be divided into: built-in type and exterior type.
According to the leakage direction of the sealing medium, it can be divided into: internal loss and outflow type.
According to the unloading situation caused by the media on the end face, it can be divided into: balanced and unbalanced.
According to the logarithm of the sealing end face, it can be divided into: single end and double end.
According to the number of springs, it can be divided into: single spring type and multi spring type.
Classified by elastic elements: spring compression and bellows.
Classified according to non-contact mechanical seal structure: hydrostatic type, fluid dynamic pressure type, dry gas sealed type.
Classified according to the temperature of the sealed chamber: high, medium, ordinary, low temperature seal.
Separated according to the pressure of the sealed chamber: ultra high, high, medium and low pressure mechanical seals.