pump cover

Gray iron is the most versatile of all foundry metals. The high carbon content is responsible for ease of melting and casting in the foundry and for ease of machining in subsequent manufacturing. The low degree or absence of shrinkage and high fluidity provide maximum freedom of design for the engineer.

The general composition of gray cast iron is 95% iron by weight with an additional 2.1 to 4% being carbon and 1 to 3% silicon. Manganese and other impurities are also commonly found in or added to molten iron as needed for the diminishing or enhancement of specific properties. Sulfur, for example, is commonly introduced to the molten metal in order to increase hardness, which is otherwise low in most cast iron components.

Green sand molding is frequently the most economical method of producing castings. Although castings up to 500kgs pounds or more can be made in green sand, it generally is used for medium to small size castings. If green sand molds are not sufficiently hard or strong, some mold wall movement may take place during solidification, and shrinkage defects develop.

The shell molding process is also used for making cores, which are used in other types of molds besides shell molds. The primary advantage is the ability to harden the mold or core in contact with a heated metal pattern, improving the accuracy and finish of the casting.

Gray iron casting is used in many market segments, including automotive, agricultural, machinery building, electronics, irrigation, ventilation, architecture, construction and transportation industries.

Grey Cast Iron Pump Parts

A pump mainly consists of pump casings, pump impellers and other pump parts. A pump impeller is a device that moves fluid (liquid or gas) or sometimes mud by mechanical action. The pump material can be cast iron, stainless steel or other materials. We mainly produce cast iron pump parts for cast iron pumps. Pumps are used in a wide range of applications such as pumping water from wells, aquarium filtration, pond filtration and aeration, in the automotive industry for water cooling and fuel injection, in the energy industry for pumping oil and gas or for running cooling towers .According to different standards, the pump can be divided into different types. Pumps can be divided into three categories according to the fluids they transport: water pumps, oil pumps and slurry pumps.
The pump casing and pump impeller are the main components of the pump. We mainly produce cast iron pump parts for cast iron pumps, such as casings or pump bodies for water pumps, oil pumps or slurry pumps. The material of the pump parts is mainly ductile iron. Sometimes the material can be nickel resist or ADI. Due to the wide range of applications, pumps come in many shapes and sizes: from very large to very small, from handling gases to handling liquids, from high pressure to low pressure, and from large to small volumes. Therefore, pumps can be classified into different types according to their use. Such as water pumps, vacuum pumps, garbage pumps, hydraulic pumps, sewage pumps, etc.
We can produce Grey Cast Iron Pump Parts according to customers' requirements.