Different types of seals are designed to seal pumps, mixers or other equipment in which a rotating shaft passes through the working chamber. This makes it possible to prevent leakage of liquid from the pump reservoir in large volumes, especially if it is under pressure. Currently, mechanical mechanical seals, which can withstand the friction from the rotation of the shaft and the pressure in the working chamber.
Why are traditional methods of sealing the working tanks of pumps being abandoned today
The most traditional method, which has been widely used for a very long time, is the use of gland packing. It is made of an impregnated cord that fits snugly between the pump casing and the rotating shaft, thus providing some sealing but not completely sealing off the leak. The main reasons why stuffing box packing is being abandoned today are as follows:
- To reduce leakage, the stuffing box must be pressed very hard against the shaft. And this means that for optimal rotation of the shaft, more power will be required, and this will lead to more unproductive energy costs;
- The gland packing is so “afraid” of friction from the rotation of the shaft that even the observance of the necessary conditions during the operation of the gland seal does not save it from complete wear - it is only a matter of time;
- Due to the tight contact of the stuffing box with the shaft, wear of the latter is observed, and the repair involves additional waste.
Mechanical seals do not have these disadvantages.
Advantages of modern mechanical seals
When using mechanical seals, at normal temperature and optimum operating pressure, the leakage volume is within three grams. Such sealing is achieved due to the design of mechanical seals. Among the other most obvious advantages are the following points:
- Modern mechanical seals do not damage the shaft;
- Reduces energy consumption by reducing friction between shaft and seal;
- Double mechanical seals can be used in vacuum systems;
- Maintenance costs are significantly reduced.
Due to the lack of leakage, cost savings are achieved when pumping expensive liquids, such as perfumes or medicines, and today even water is not free.
Where to buy modern mechanical seals?
In the Russian, Belarusian, Ukrainian markets, as well as in Kazakhstan, one of the Chinese manufacturers of mechanical seals has a strong position. With its own design department and powerful production, the company provides various enterprises with the highest quality mechanical seals. Through an official representative in Russia, you can buy mechanical seals from the Chinese company YALAN Seals at the manufacturer's price.
