China's first pump product advanced performance and efficiency standards passed the certification

The revised national standard for energy efficiency limit value and energy conservation evaluation value of Qingshui centrifugal pump has passed the national energy foundation and management standardization technical committee. The target energy efficiency limit value required by the standard is an advanced performance indicator. The validation will recommend that the indicator be implemented three years after the implementation of the standard. This is the first advanced performance efficiency standard for China's pump products, which will greatly affect the pump industry in China. Overall development.
According to Zhang Xin, the first drafter of the standard and the engineer of the China National Institute of Standardization, most of the energy efficiency standards that have been issued in China are current standards. Without fully tapping the energy-saving potential of enterprises, it is difficult to have a sustainable impact on industry development and industrial energy conservation. The advanced standard is a new standard implementation method in the world. It has been widely adopted in developed countries in the field of energy conservation.
According to reports, the standard specifies the basic requirements of the clear water centrifugal pump, energy efficiency limit value, target energy efficiency limit value and energy conservation evaluation value. The scope of application of the revised standard includes single-stage single-suction clear water centrifugal pump, single-stage double-suction clear water centrifugal pump and multi-stage clear water centrifugal pump.

Flexible Flap Disc

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According to the type of abrasive particles: ceramic alumina VS zirconium corundum VS alumina

According to the type of abrasive selected, the flap disc can be divided into three types: ceramic alumina, zirconium corundum and alumina.

Because ceramic alumina itself has many crystals, it has good self-sharpening, relatively neat edges, good heat dissipation, and long service life. Therefore, ceramic alumina louvers are mainly used for the grinding of stainless steel, aluminum and other hard metals.

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Zirconium corundum itself is a polycrystalline crystal, with fast cutting speed, good self-sharpening, and strong resistance to high pressure and high temperature. Therefore, zirconium corundum louver blades have strong cutting ability and long service life.

Alumina: single crystal, the cutting ability begins to decline at the beginning of grinding, and the abrasive grains are not easy to break, so the alumina flap disc is suitable for the processing of common metals.

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