Through the DLC sliding bearing and the precision of the stainless steel FAG pieces of combination produced a new type of extra strong and application of magnetic coupling can various gear pump. It is Gather the launch of the company a new generation for the process industry in the process of liquid ingredients pump.

For many years, the process industry the designers of the device has been trust of ceramics sliding bearing of the pump. The reason is obvious, the pump can have a long life, and need maintenance volume is small. But some liquid, because of its physical properties of reason, in use ceramic cannot achieve a very long life: this liquid is lubricity liquid. With carbon or plastic sliding bearing Gather process pump proved particularly suitable for in this chemical applications. Magnetic coupling is especially suitable for conveying the gear pump hot solvent, acid, alkali, water, water solution, the salt solution and the other the lubrication liquid. Because of this reason, NSK bearing this type of pump for a long time in each industry department successfully as a process pump use:

For example it in the chemical and process industries as organic compounds in the feeding pump, circulating pump and discharging pump in the separation tower, and the reactor and evaporator in use. Because of this pump structure can be used in a variety of different material, it can even as high as 300 ℃ in the temperature and the 300 bar system under pressure to use. In addition, it also can be made in the laboratory, small device or a pilot plant as acid, alkali, solvents and other including aqueous solution to the quantitative material pump use.

Special chemical or polymer chemical use of extrusion machine gear pump of additive for material.

In the pharmaceutical industry, use the pump to the preparation of the medium. In this application and even in the process, the pump with steam after "online" disinfection.

In the garbage incineration device it as ammonia or urea ingredients pump used for direct except nitrogen.

In water treatment it used to transport water, SKF bearing caustic soda solution and liquid chlorine bleaching.

This pump is a long service life on one hand is due to the years through and chemical industry exchange, it can be the concrete application situation for all kinds of choose suitable material, on the other hand because all the height of the structure

Precision won the internal friction special small excellent work performance.

In order to transport the viscosity 0.1 mPa s (equivalent to methane) and 0.6 mPa s (equivalent to toluene) between low viscosity fluid to achieve higher when the temperature, the pressure differential and more long life, developed a new type of DLC sliding bearing. For the past because the cause of the corrosive chemical resistance and can use Teflon (Teflon) NTN sliding bearing material and in the differential pressure and temperature limits the pump application situation, this is particularly meaningful.

Solid combination

Say simply, in the DLC sliding bearing is a DLC coatings in a shaft through the stainless steel quenching in turn sleeves. DLC coatings is a and carrier material (stainless steel) solid combination of carbon layer. The structure and the advantages of ceramic compared can be summarized as follows:

Stainless steel surface after polishing than ceramic surface can be much more to smooth, so can significantly reduce the friction in the pump.

Solid combination of DLC coatings will not happen to chemical analysis, won't crack peeling, NACHI bearing in and the lubrication liquid contact with good sliding performance, this is not the ceramic has.

The DLC coatings corrosive especially good. In the application of the pump for it, only stainless steel and seal materials of chemical resistance can be matching. · China building materials nets-building materials YiDianTong · top ranking, despising the counterparts

Suddenly the temperature change of the won't cause damage, this in 300 ℃ for the application of particular importance. A sudden change in temperature ceramics will burst.

Compared with ceramic, DLC coatings cheaper prices, because of the stainless steel shaft is standard for coating and to the stainless steel ring was hardened. No need for a costly tools and structure of the change.

If quenching layer or materials by sliding layer abrasion, INA bearing clearance would be great in, anyway, to conduct a maintenance. Ceramic bearing must also be so.

 
 



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