Uttox manufactures and sells Flygt Seals Replacement.
Applicable Flygt Pump Models of This Mechanical Seal:
● 2151.011&050
● 3057.180(Pump)
* To get the latest prices & more info about Flygt Seals Replacement, please contact Uttox Mechanical Seals by E-mail or Whatsapp.
● Whatsapp: +86-13656834410
*Related Introduction*
The production and development background of mechanical seals
The mechanical seal first appeared in the form of a patent in the UK in 1885, Applied in 1900. The first simple end face machine
Sealing solves the problem of shaft sealing in the machine manufacturing industry. Same as usual
Compared with packing seal, both in terms of function and composition principle, mechanical
The seal has obvious advancement. However, due to the lack of appropriate
The materials and processing machine tools, although this sealing structure has many advantages,
Still did not play its role. Until 1920, due to new technology and
The emergence of new materials has improved the reliability and life of use, and has reduced
After manufacturing costs, mechanical seals are gradually being used in many refrigeration devices.
To more use. After 1930, mechanical seals were used in internal combustion engines
The shaft seal of the water pump, at this time, the psv value has reached 3.1MPa·m/s. In this
At this stage, the driving force for the development of mechanical seals is mainly mechanical processing and materials.
Technological progress.
After the Second World War, mechanical seals gained rapid development in the United States.
Rapid popularity. From 1939 to 1945, due to the development of the petrochemical industry, the
Ink, ceramics, cemented carbide and other materials are used in the manufacturing of mechanical seal dynamic and static rings
The application and the improvement of surface roughness control level in processing technology,
The psv value reached 15 MPa·m/ s; in 1956, there was a flat surface in the structure.
Balance type mechanical seal and intermediate ring seal, psv value reached 30MPa·m/
s, reached 80MPa·m/s in 1959. At this stage, the development of mechanical seals
The driving force is mainly the speed of industrial development and the demand of the production process.
From 1961 to 1963, due to the requirements of the atomic energy industry, structurally
The appearance of hydrodynamic pressure seal and hydrostatic pressure seal, so that the psv value is rapid
Increased to 167MPa·m/s and reached 266MPa·m/s in 1969. At this
In the first stage, the main driving force for development is the different lubrication mechanisms between the seal faces.
The exploration and development of new structures that are compatible with it.
From 1971 to 1974, due to special requirements in aerospace and nuclear power,
There is a multi-level seal in the structure, silicon carbide and silicon carbide in the material
High-quality carbon graphite with different impregnation materials, so that the psv value has reached
360MPa·m/ s, in 1977 due to special needs such as nuclear power, the spiral-
Mechanical seal combination seal, improved intermediate floating ring seal, etc., floating
Ring-mechanical seal combination seal, etc., so that the highest psv value reached
500MPa·m/ s. At this stage, the main driving force for development is structural reorganization.
And the emergence of new materials for sealing. From 1980 to 1990, as people’s awareness of environmental protection increased, research
Produced a "zero leakage" mechanical seal. In the principle of hydrodynamic sealing
Based on this, a thermohydrodynamic wedge mechanical seal and upstream pumping were developed.
Machinery Seal. While ensuring the sealing performance, in order to obtain a longer
2. Service life, using automatic control theory, people develop controllable machinery.
seal. After 1990, the psv value of the mechanical seal reached 5700MPa·
m/s. At this stage, the main driving force for development is the development of the sealing principle development and control theory support.
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