What is a CF8M Ball Valve? Composition, Types and Applications

In this blog post, you’ll read:Industrial valves have wide ranges. There are hundreds of materials for making a Valve. CF8M is one of the best materials for valves. CF8M ball valve is widespread for industrial use.
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Industrial valves have wide ranges. There are hundreds of materials for making a Valve. CF8M is one of the best materials for valves. CF8M ball valve is widespread for industrial use. They are popular because of their performance. We use them for flow control of gases and liquids. They have excellent properties to handle sensitive fluids. CF8M enhances the functional performance of valves.

The name stands for specific terms. C stands for corrosion resistance. F stands for the mixture of iron, chromium, and nickel. 8 represents the content of carbon present in the alloy, while M means molybdenum. Here is a detailed article on the CF8M ball valve.

What is a CF8M Ball Valve? 

A CF8M ball valve is a type of plumbing valve. It regulates the flow of fluids or gases through pipes. It is made from CF8M, a stainless steel alloy known for its properties. It includes high resistance to corrosion, heat, and wear immunity. CF8M is a specific type of stainless steel alloy used in the valve’s construction.

A ball valve consists of a ball typically made from metal or plastic. We can operate the ball valve using a handle or actuator. When we turn the handle or the actuator, the ball rotates within the valve body. It results in allowing or blocking the flow of fluids or gases. The ball valve is a quarter-turn valve. It requires only a quarter turn of the handle or actuator to open or close.

Product: Industrial Floating Ball Valve.
Material: CF8M Stainless Steel.
Size: 1/2-8Pressure: PN 1.0 to 32.0 MPa.
Media: Water.
Working Temperature: Normal Temperature.
Applications: Industrial Usage, water, and Household usage.
Industrial Floating Ball Valve Specs

Composition of CF8M Ball Valve: 

The composition of a CF8M ball valve determines its mechanical and chemical properties. CF8M is also known as 316 stainless Steel. It is an alloy of stainless steel we commonly use to produce ball valves. The alloy comprises various elements that impart specific characteristics to the material. These properties make it ideal for particular applications. The primary components in CF8M are iron, chromium, nickel, and molybdenum.

composition of cf8m ball valve
composition of cf8m ball valve


Iron is a primary component of stainless steel alloys, including CF8M. It gives the alloy properties, such as strength and flexibility. Iron also contributes to the alloy’s resistance to corrosion. The properties of iron are enhanced When we combine it with other metals.

In CF8M ball valves, the iron content ranges from around 65% to 75% by weight. Iron content depends on the composition of the alloy. The exact amount of iron in the alloy can significantly impact the properties of the ball valve.

For example, high iron content in CF8M can improve the alloy’s strength and resistance. It will reduce its flexibility and impact resistance. Similarly, reducing the iron content can improve the alloy’s corrosion resistance. Its performance gets better in acidic or chloride-containing environments.


Chromium is the most significant element in the alloy. It makes up about 18-20% of its composition. Chromium is responsible for providing the alloy with excellent corrosion resistance. It makes the valve ideal for use in heavy-duty work. It forms a layer of oxide on the valve that prevents further oxidation and corrosion.


Nickel is another essential element in CF8M, contributing 10-14% of the alloy’s composition. Nickel enhances the valve’s resistance to corrosion, especially in acidic environments. It also increases the strength of the ball valve, making it easier to endure pressure.


Molybdenum is another element of CF8M, with 2-3% composition. Molybdenum improves the alloy’s resistance to resist corrosion in chloride-containing environments. It also enhances the material’s high-temperature strength and improves its overall toughness.

Other elements in the alloy include carbon, silicon, sulfur, phosphorus, and manganese. Carbon improves the alloy’s strength and hardness. Silicon improves resistance to oxidation and corrosion. In contrast, sulfur and phosphorus are present in trace amounts and improve machinability. Manganese enhances the material’s toughness and strength.

Hence the composition of CF8M ball valves makes them best in corrosive environments. The valve’s high corrosion resistance makes it popular for industrial applications. Its strength and flexibility are ideal. Yet, the exact composition of CF8M varies depending on the applications and requirements.

Ball Valve DN80 Stainless Steel CF8M Flanged ANSI 150LB

Construction of CF8M Ball Valve: 

The construction of a typical CF8M ball valve consists of several vital components. Each step plays a crucial role in the valve’s operation. Here are the parts of the CF8M Ball valve.

details inside of ball valve
Details inside of ball valve

Body: The valve’s body contains the internal components, ball, stem, and seats. Its material is CF8M stainless steel and can withstand high pressures and temperatures.

Ball: The ball is the internal component of the valve that controls fluid or gas flow through the valve. It is also made of CF8M stainless steel. Its function is to rotate within the valve body to control the flow of fluids through the valve.

Stem: The stem provides the base that connects the ball to the actuator or handle of the valve. Its material is CF8M stainless steel. The function of the stem is to rotate the handle to the ball to control the flow of fluids through the valve.

Seats: The seats provide a tight seal between the ball and the valve body. They are typically made from a softer material than the ball. The seat design is deformed slightly to create a tight seal against the ball when the valve is closed. The seats are usually made from PTFE, RPTFE, or other resilient polymers.

Actuator or Handle: The actuator or handle is the part that controls the position of the ball in the body. It is typically located at the top of the valve body. We can control it manually or automatically using an actuator.

Bolts and Nuts: The bolts and nuts are the components that hold the valve body together. They secure the internal components in place. They are made from stainless steel and withstand high pressure and temperature range.

The construction of a CF8M ball valve is effective and practical. It provides a reliable solution for regulating the flow of fluids.  

Working Mechanism Of CF8M Ball Valve:

CF8M ball valves work on a quarter-turn principle. The ball within the valve is rotated by 90 degrees to control fluid or gas flow through the valve. The working mechanism of the CF8M ball valve is explained in the following steps.

In the closed position, the ball is rotated so that the hole in the ball is perpendicular to the fluid flow. The stem connected to the actuator or handle holds the ball in place. The seats form a tight seal against the ball to prevent fluid or gas from passing through the valve.

If we have to open the valve, the actuator or handle is rotated by 90 degrees. It causes the stem to spin the ball by 90 degrees as well. As the ball turns, the hole aligns with the fluid or gas flow through the valve. It allows the fluid to flow through the valve smoothly.

We can control the flow once the valve is open by adjusting the ball’s position. We can do this by rotating the actuator or handle to adjust the position of the stem and ball. Turning the ball can change the valve’s opening to control the fluid or gas flow.

If we have to close the valve, the actuator or handle is rotated back to its original position. It causes the ball to rotate 90 degrees in the opposite direction. As the ball turns, the hole becomes perpendicular to fluid or gas flowing through the valve. It blocks the flow of liquid or gas through the valve. The seats once again form a tight seal against the ball to prevent any fluid or gas from passing through the valve.

Properties of CF8M Material: 

CF8M ball provides accurate and reliable flow control for various industrial applications. The following are the properties of CF8M ball valves in detail:

kevinzhou cf8m ball valve works with a worker
cf8m ball valve works with a worker
  • Corrosion Resistance: CF8M is a high-grade stainless steel alloy with excellent corrosion resistance. We can use CF8M ball valves in severe chemical environments. They can work without being damaged by corrosion or chemical attack. This makes them popular in chemical processing and oil and gas plants.
  • High Strength: CF8M alloy has high mechanical strength. This property makes it an ideal material for high-pressure and high-temperature applications. CF8M ball valves can withstand high pressure and temperature variations. They do the job without suffering from deformation or damage.
  • Durable: CF8M ball valves can undergo frequent regulation and challenging conditions. It makes them a long-lasting solution for fluid and gas flow control. The stainless steel construction is resistant to wear and tear. That’s why the valve is ideal for industrial applications. They are heavy-duty products because of their endurance.
  • Easy Maintenance: CF8M ball valves have easy maintenance. They have a simple construction and easy-to-access components. It allows for quick and easy maintenance and repair. It also reduces downtime and keeps operations running smoothly.
  • High Chemical Compatibility: The CF8M alloy is compatible with acids, bases, and solvents. It makes CF8M ball valves suitable for use in industries where it handle many chemicals. For example, we use them in chemical processing and pharmaceuticals.
  • Versatility: We can use a CF8M ball can for gas, steam, and liquid flow control. We can use them in both high-pressure and low-pressure applications. Thus, they are a versatile industrial fluid and gas flow control solution.

The properties of CF8M ball valves make them a long-lasting and reliable solution. They allow it to regulate the flow of fluids in various applications.  

Applications of CF8M Ball Valve:

CF8M ball valves have a wide range of applications in various industries. This product applies to oil and gas, food and beverage, and water treatment systems. Some of the specific applications of CF8M ball valves are:

Chemical Processing:

Due to their corrosion-resistant properties, we use CF8M ball valves in chemical processing plants. They can handle various chemicals, including acids, bases, and solvents.

brass cf8m ball valve applications
brass cf8m ball valve applications

Oil and Gas:

CF8M ball valves are also widely used in the oil and gas industry, where we use them for various applications. They control flow in a pipeline and storage tank isolation. These valves also contribute to gas distribution systems and refining processes.

Food and Beverage:

CF8M ball valves are suitable for use in the food and beverage industry. It is because they have easy-to-clean surfaces. We commonly use them for controlling the flow of liquids and gases. They work in food and beverage processing and packaging.


CF8M ball valves are primarily used in the pharmaceutical industry due to their non-corrosive surface. They can maintain high standards of purity. They also control the flow of liquids and gases in drug manufacturing and packaging.

Water Treatment:

CF8M ball valves are also popular in water treatment, which controls the flow of liquids. They are suitable to withstand exposure to various chemicals and contaminants. They can also maintain water quality.

Marine Applications:

CF8M ball valves are a versatile and reliable option for various industrial applications. Their chemical compatibility makes them suitable for use in demanding environments. Similarly, their easy cleaning is compatible with industries with high hygiene standards.


CF8M Ball valves have unique properties and performance. Their material makes them a fantastic product in their category. They are pretty popular in industrial applications due to their high endurance level.

CF8M ball valves are durable and easy to maintain. They are an ideal option for anyone who wants to go for heavy-duty functions. One should understand the workings and requirements of the product before purchasing it. It will help if you go through all the above details to get the best fit.

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