Submersible sewage pump material which? What material is better? These materials have what characteristics, this article will give you a detailed explanation.
Daily, we know that the submersible sewage pump is divided into different materials, the most frequent contact with stainless steel submersible sewage pump and cast iron submersible sewage pump, the reason is divided into different materials, which is the nature and use of these materials with the scope of phase Contact, then commonly used materials have what?
Stainless steel submersible sewage pump cast iron material submersible sewage pump
(Figure 1: stainless steel)
Daily, we know that the submersible sewage pump is divided into different materials, the most frequent contact with stainless steel submersible sewage pump and cast iron submersible sewage pump, the reason is divided into different materials, which is the nature and use of these materials with the scope of phase Contact, then commonly used materials have what?
Stainless steel submersible sewage pump cast iron material submersible sewage pump
(Figure 1: stainless steel)
(Figure 2: cast iron material)
First, cast iron material
1, gray cast iron
Is the most commonly used of a cast iron, GB code-named HT. General water pump pump, impeller, pump cover, suspension, etc. are used in the material, usually used in three grades: HT150, HT200, HT250. For the base, plate and other non-essential parts and more to use HT150, pump, pump cover, suspension and other use HT200, and impeller, mouth ring, sleeve and more use HT250.
Countries on the expression of gray iron is different, such as Japan, code-named FC, Germany, code-named GG, the United States for the Class.
2, ductile iron material
Is a comprehensive performance better cast iron, GB code-named QT. Because of its mechanical properties close to steel, while its forging function, processing performance is better than steel, so it is usually used as a steel alternative. The most commonly used grades are: QT450-10, QT500-7, QT600-3. Because of forging and other reasons, the company temporarily do not do the material.
DIN-scale representation of ductile iron for the GGG, the United States, said the method for the Ductile iron.
In addition to corrosion-resistant cast iron - high-silicon cast iron, wear-resistant cast iron - white cast iron, high toughness of cast iron - malleable iron.
Second, cast steel material
Because the strength of cast steel turn high, usually when the pressure> 1.6Mpa, the pressure parts to use more cast steel, the national standard code-named ZG, the most commonly used grades ZG230-450.
Japan and the United States is usually expressed in steel casting CS.
Third, stainless steel
The most widely used stainless steel is austenitic stainless steel, such as 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti and so on. In addition to hydrochloric acid, dilute sulfuric acid and a few other media, austenitic stainless steel is an excellent corrosion-resistant materials, chemical pump is the most commonly used corrosion-resistant materials. Japan and the United States usually SS304, SS316, SS316L to represent austenitic stainless steel.
Martensitic stainless steel such as 2Cr13, 3Cr13, its mechanical properties better than austenitic stainless steel, usually used for shaft and shaft materials, Japan and the United States corresponding to code-named SS420.
In addition, high alloy stainless steel (20 alloy) and double stainless steel is also an ideal corrosion resistant material.
Fourth, alloy steel material
The most representative alloy steel for the 40Cr, usually used for high-strength pump shaft material.
5, carbon structural steel material
Usually divided into ordinary carbon structural steel and high-quality carbon structural steel.
The most representative of the ordinary carbon structural steel Q235, various types of steel, steel and more use of the material; the most representative of high-quality carbon steel for the 45 steel, which is widely used for non-corrosion requirements of the pump shaft material.
6, non-metallic materials
Pump non-metallic materials are mainly used for sealing, such as PTFE, fluorine rubber, nitrile rubber. PTFE which has excellent resistance to erosion, high temperature performance for the chemical pump seals and mechanical seals of the static seal for 250 ℃ in almost all of the chemical medium, the shortcomings of the higher hardness, the difficulty of assembly Big.
Fluorine rubber is also a good temperature, corrosion-resistant materials, temperature limit to 160 ℃ is appropriate, when the user no special requirements, the company's chemical pump materials are used in the ring; and nitrile rubber is mainly used for oil Or a water-tight seal.
More than six materials for the common submersible sewage pump material, with the largest stainless steel and cast iron material, stainless steel materials are used to have a certain corrosive sewage or sewage contains a certain amount of solid particles in the case.
First, cast iron material
1, gray cast iron
Is the most commonly used of a cast iron, GB code-named HT. General water pump pump, impeller, pump cover, suspension, etc. are used in the material, usually used in three grades: HT150, HT200, HT250. For the base, plate and other non-essential parts and more to use HT150, pump, pump cover, suspension and other use HT200, and impeller, mouth ring, sleeve and more use HT250.
Countries on the expression of gray iron is different, such as Japan, code-named FC, Germany, code-named GG, the United States for the Class.
2, ductile iron material
Is a comprehensive performance better cast iron, GB code-named QT. Because of its mechanical properties close to steel, while its forging function, processing performance is better than steel, so it is usually used as a steel alternative. The most commonly used grades are: QT450-10, QT500-7, QT600-3. Because of forging and other reasons, the company temporarily do not do the material.
DIN-scale representation of ductile iron for the GGG, the United States, said the method for the Ductile iron.
In addition to corrosion-resistant cast iron - high-silicon cast iron, wear-resistant cast iron - white cast iron, high toughness of cast iron - malleable iron.
Second, cast steel material
Because the strength of cast steel turn high, usually when the pressure> 1.6Mpa, the pressure parts to use more cast steel, the national standard code-named ZG, the most commonly used grades ZG230-450.
Japan and the United States is usually expressed in steel casting CS.
Third, stainless steel
The most widely used stainless steel is austenitic stainless steel, such as 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti and so on. In addition to hydrochloric acid, dilute sulfuric acid and a few other media, austenitic stainless steel is an excellent corrosion-resistant materials, chemical pump is the most commonly used corrosion-resistant materials. Japan and the United States usually SS304, SS316, SS316L to represent austenitic stainless steel.
Martensitic stainless steel such as 2Cr13, 3Cr13, its mechanical properties better than austenitic stainless steel, usually used for shaft and shaft materials, Japan and the United States corresponding to code-named SS420.
In addition, high alloy stainless steel (20 alloy) and double stainless steel is also an ideal corrosion resistant material.
Fourth, alloy steel material
The most representative alloy steel for the 40Cr, usually used for high-strength pump shaft material.
5, carbon structural steel material
Usually divided into ordinary carbon structural steel and high-quality carbon structural steel.
The most representative of the ordinary carbon structural steel Q235, various types of steel, steel and more use of the material; the most representative of high-quality carbon steel for the 45 steel, which is widely used for non-corrosion requirements of the pump shaft material.
6, non-metallic materials
Pump non-metallic materials are mainly used for sealing, such as PTFE, fluorine rubber, nitrile rubber. PTFE which has excellent resistance to erosion, high temperature performance for the chemical pump seals and mechanical seals of the static seal for 250 ℃ in almost all of the chemical medium, the shortcomings of the higher hardness, the difficulty of assembly Big.
Fluorine rubber is also a good temperature, corrosion-resistant materials, temperature limit to 160 ℃ is appropriate, when the user no special requirements, the company's chemical pump materials are used in the ring; and nitrile rubber is mainly used for oil Or a water-tight seal.
More than six materials for the common submersible sewage pump material, with the largest stainless steel and cast iron material, stainless steel materials are used to have a certain corrosive sewage or sewage contains a certain amount of solid particles in the case.
Manufacturers recommend: Shenlong stainless steel sewage pump
Keywords:Submersible sewage pump, material, corrosive
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