DG type horizontal material commonly used high temperature and high pressure water pump impeller

DG type horizontal high temperature and high pressure water pump, may transport under 280 ℃ high temperature water, suitable for boiler feed water, factories and urban water supply. Also suitable for transport water temperature below 110 ° C or non-corrosive of physical and chemical properties similar to water other liquid, is widely used in industrial and mining enterprises and institutions of the boiler feed water and urban water supply.

DG type horizontal commonly used high temperature and high pressure water water pump impeller material has the following kinds:

1, high temperature and high pressure water pump impeller material has: stainless steel, cast iron, aluminum alloy impeller impeller impeller, the five categories such as casting, plastic impeller, copper impeller.

2, the DG high temperature and high pressure water pump impeller forms are: open, half open, closed three forms.

3, material corrosion grade is different: stainless steel impeller using time is longer longer, hygiene, bronze impeller is also stronger corrosion, mainly used in fire protection, water and other occasions, but not as good as stainless steel impeller. Corrosive liquid high temperature and high pressure boiler water pump impeller can be used in a stainless steel impeller, but according to different corrosive degree also cast and plastic impeller, copper impeller can be used to transport oil choose cast copper impeller, liquid are commonly used cast iron impeller, health fluid material is made of aluminum alloy and plastic impeller, stainless steel impeller impeller.

4, DG type horizontal high temperature and high pressure water pump impeller material choice is medium combined with pump structure to determine the situation and also have a good variety of commonly used. Such as cast iron, cast steel, stainless steel, cast copper, there are also many specific brands in each category.

5, DG type horizontal high temperature and high pressure water water pump impeller casting steel material is usually refers to the casting of the carbon steel, such as ZG230 - 450、ZG270- 500. This kind of material do not corrosion resistance, also not resistant to cavitation, comprehensive strength is better than cast iron. Stainless steel impeller efficiency to higher than 304 stainless steel impeller bronze, almost 316, 316 l, two-way stainless steel price is much higher. Bronze low temperature resistant performance is superior, 100 degrees below zero strength also won't have the slightest decline. Dozens of degrees below zero with stainless steel, chromium nickel as brittle as glass. At room temperature, the mechanical strength of stainless steel.

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