Why is Floating Ball Valve supplier Better?

Author: Shirley

Apr. 29, 2024

What is a Floating Ball Valve? How Does it Work?

Floating ball valves are essential components in many fluid control systems. This article will delve into what they are, how they work, their components, their advantages, and how to select the right one for your application.

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What is a Floating Ball Valve?

A floating ball valve is a quarter-turn valve used primarily in industrial settings to control the flow of liquids or gasses through pipelines. Its design features a floating ball within the valve mechanism, allowing for quick and efficient opening and closing.

How Does a Floating Ball Valve Work?

  • Construction: A floating ball valve has a hollow valve body with inlet and outlet ports, a spherical ball, a stem, and a lever to control the position of the ball.
  • Ball Design: The ball inside the valve has a central hole (or bore), allowing fluid flow when open. This ball is typically made of metal, such as stainless steel, or other materials chosen for compatibility with the specific fluid being controlled.
  • Operation: When closed, fluid pressure pushes the ball against the valve seat, creating a tight seal. To open the valve, the ball rotates 90 degrees (a quarter-turn). This aligns the hole in the ball with the flow path, allowing fluid to flow through.
  • Floating Design: Unlike a trunnion-mounted ball valve, where the ball is fixed in place by a top stem and bottom trunnion, a floating ball valve’s ball is connected only to a top stem. This allows it to “float” within the valve seats, held in place by fluid pressure when the valve is closed.

Components of Floating Ball Valves

The materials used in a floating ball valve are carefully chosen for strength, corrosion resistance, and compatibility with the specific fluid it will control. Typical components include:

  • Valve Body: The valve body is the main housing of the valve and is usually made from materials such as carbon steel, stainless steel, alloy steel, or cast iron. The choice of material depends on factors such as pressure rating, temperature range, and chemical compatibility with the fluid.
  • Ball: The ball, the heart of the valve, directly controls fluid flow. It’s typically made from durable, corrosion-resistant metals like stainless steel, brass, or bronze. Coatings or surface treatments may be added to enhance wear resistance and sealing performance further.
  • Seats: The valve seats provide the sealing surfaces for the ball when the valve closes. They’re typically made from resilient, wear-resistant materials like PTFE (polytetrafluoroethylene), PEEK (polyetheretherketone), or reinforced elastomers such as Viton or EPDM. These materials ensure a tight seal and resist chemical attack.
  • Stem: The stem connects the actuator (lever or other control mechanism) to the ball, transferring the rotational motion needed to open or close the valve. It’s made from corrosion-resistant alloys to ensure reliable operation in harsh environments.
  • Seals and Packing: Seals and packing materials are used to prevent leakage around the stem and other moving parts of the valve. These components are often made from elastomers such as Nitrile, Viton, or EPDM, as well as PTFE-based materials, depending on the application requirements.
  • Actuator: The actuator controls the valve’s opening and closing. It can be manual (e.g., handle, lever) or automated (e.g., gearbox, pneumatic or electric motor). The actuator type depends on the desired level of control and the specific application.

Industries Using Floating Ball Valves

Floating ball valves are versatile components used in various industries where fluid control is essential. Here’s a breakdown of their common applications:

  • Oil and Gas: Pipelines, refineries, and processing plants, handling various hydrocarbons.
  • Petrochemical: Controlling the flow of chemicals, solvents, and other fluids in production processes.
  • Chemical Processing: Handling corrosive or hazardous liquids where a tight seal is critical.
  • Power Generation: Isolating sections of steam, water, or fuel lines in power plants.
  • Water and Wastewater Treatment: Controlling flows within treatment facilities, pump stations, and distribution networks.
  • Residential and Commercial Buildings: Controlling water flows in plumbing and HVAC systems.

Advantages of Floating Ball Valves

  • Affordability: Floating ball valves are a cost-effective solution for many applications, making them a popular choice in cost-sensitive industries.
  • Lower Maintenance: Floating ball valves typically have fewer components and simpler designs, making them easier to maintain and repair compared to other types of valves. This can result in lower downtime and maintenance costs.
  • High-Quality Tight Seal: Floating ball valves provide a tight seal when closed, minimizing leakage and ensuring efficient flow control. This makes them flexible, versatile, and highly adaptive for applications where sealing performance is essential.
  • Low Torque: Floating ball valves require lower operating torque than other valve types, making them easier to operate by hand or with actuators.

Disadvantages of Floating Ball Valves

  • Limited Pressure and Temperature Range: Floating ball valves have limitations in high-pressure and high-temperature applications compared to more robust designs like trunnion-mounted ball valves. In extreme conditions, they may be more prone to damage.
  • Limited Size Range: Floating ball valves are typically limited to smaller sizes, making them less suitable for large-diameter pipelines or very high-flow applications.
  • Cavitation Damage: Floating ball valves may be more susceptible to cavitation damage than other valve types, especially in high-pressure applications. Cavitation occurs when rapid pressure changes cause vapor bubbles to form and then collapse, potentially eroding valve components.
  • Potential Seat Wear: The floating ball design can cause wear on valve seats over time, especially in applications involving frequent cycling or abrasive fluids.

How to Choose the Right Floating Ball Valve

To select the right floating ball valve, carefully consider:

  • Operating Conditions: Evaluate the specific pressure, temperature, and fluid properties of your system.
  • Size and Connections: Choose the correct valve size and ensure the connection type matches your piping.
  • Materials: Select materials (body, ball, seats) that are compatible with the fluid and environment to ensure durability and prevent corrosion.
  • Pressure and Temperature Ratings: Ensure the valve can handle the maximum pressure and temperature it will encounter.
  • Sealing Performance: Look for valves with a proven track record of reliable sealing, especially if leakage is a major concern.
  • Actuation: Decide between manual (lever, handle) or automated (pneumatic, electric) operation based on your application needs.
  • Reliability and Reputation: Research the manufacturer’s reputation and choose a valve known for quality and longevity.
  • Cost vs. Value: Balance initial cost with long-term performance and maintenance requirements to determine the best overall value.

Now that you understand the basics of floating ball valves, you’re equipped to make informed decisions for your fluid control needs. Remember to prioritize operating conditions, materials, size, and reliability when making your selection.

Floating Ball Valve Vs.Trunnion: What's Their Difference

Ball valves are one of the world’s most widely used types of valves. They are suitable for a wide range of applications, from heavy-duty industrial use to household plumbing. There are two main types of ball valves: floating ball valves and trunnion ball valves. Both types have their own unique features and benefits. But what’s the difference between these two types of valves? This blog post will explore the trunnion mounted ball valve vs. floating ball valves.

What Are Floating Ball Valves? 

Source: Dombor

As the name suggests, floating ball valves have a ball that flows inside the body of the valve. The ball is connected to the stem, which is operated by a handle. The ball is connected to a lever that opens and closes the valve. Floating ball valves are used in a variety of industries, such as oil and gas, chemical processing, and water treatment.

Floating ball valves are often used in applications with a high degree of accuracy. The ball in a floating ball valve is free to move up and down, which allows it to create a tight seal. This makes floating ball valves ideal for applications where a small amount of leakage is acceptable.

Floating ball valves are available in various materials, such as brass, stainless steel, and plastic. The material chosen will depend on the application in which the valve will be used. For example, a plastic floating ball valve would be best suited for an acidic environment, while a brass ball valve would be best for a high-temperature application.

How Does a Floating Ball Valve Work?

A floating ball valve is a type of valve that uses a ball that floats on top of a liquid to control the flow of the liquid. The ball is connected to a lever that can be used to open and close the valve. When the valve is open, the ball floats, allowing the liquid to flow. When the valve is completed, the ball sinks and blocks the flow of the liquid.

Pros And Cons Of A Floating Ball Valve

A floating ball valve is often used in various industrial and commercial applications. The ball in this type of valve is designed to float on top of the fluid, which allows for a tight seal while also using minimal force. While floating ball valves have many benefits, there are also a few drawbacks.

PROS

  • It can be used with various fluids
  • Easy to operate
  • Good for tight spaces
  • Low maintenance

CONS

  • Some fluids can cause the ball to stick
  • It can be difficult to repair
  • Not suitable for high-pressure applications

Whether or not a floating ball valve is suitable for the business will depend on the specific needs. However, it is essential to be aware of both the pros and cons of this type of valve before making a decision.

Suggested reading:
BS EN 13709 Lift Check Valve, EN 10213 1.0619, DN50, ...
What To Consider When Buying A New SS Butterfly Valve
Top 10 Gate Valve Manufacturers in the USA

Link to Xiangyu

What Are Trunnion Ball Valves? 

A trunnion ball valve is a type of valve that uses a ball held in place by two trunnions or posts. This design allows the ball to rotate in place, allowing the valve to open or close. This ball valve is a specialized type of valve that is used in a variety of industries. These valves are designed to provide superior performance in critical applications. Trunnion ball valves are available in various sizes and pressure ratings to suit the needs of different industries.

Some industries that commonly use trunnion ball valves include the oil and gas industry, the power generation industry, and the chemical processing industry. These valves are also widely used in applications where there is a need for a high-quality valve that can withstand extreme temperatures and pressures.

How Does a Trunnion Ball Valve Work?

Trunnion ball valves are designed for high-pressure and heavy-duty applications. They are available in a variety of sizes and configurations to meet the needs of different industries. But how does a trunnion ball valve work?

Trunnion ball valves have a two-piece body design that contains a ball with a hole through the center. The ball is attached to a trunnion, a support that allows the ball to rotate. The trunnion is connected to the valve’s body and is held in place by bearings.

When the valve is in the open position, the hole in the ball’s center aligns with the valve’s inlet and outlet ports. This allows fluid to flow through the valve. When the valve is in the closed position, the ball is rotated so that the hole is no longer aligned with the ports, and fluid flow is blocked. Trunnion ball valves are used in applications where it is crucial to minimize or eliminate the risk of leaks. 

Pros And Cons Of A Trunnion Ball Valve

Trunnion ball valves are one of the most popular types of valves on the market today. They are used in a wide variety of industries and applications, from oil and gas to water and wastewater. But what are the pros and cons of trunnion ball valves? Let’s take a look.

PROS: 

  • Trunnion ball valves are very sturdy and can withstand high pressure.
  • They are easy to operate and can be opened and closed quickly.
  • Trunnion ball valves have a good seal and can be used with a variety of different liquids and gasses.

CONS: 

  • Trunnion ball valves can be expensive.
  • They can be challenging to repair if they break.
  • Trunnion ball valves can be large and bulky, making them difficult to install in some applications.

Key Differences Between Floating Ball Valves And Trunnion Ball Valves 

Floating ball valves and trunnion ball valves are both types of ball valves. Ball valves are valves that use a ball to control the flow of fluid. The ball has a hole in the center that allows fluid to pass through when the valve opens. When the valve is closed, the ball is turned, so the hole is blocked, and fluid cannot pass through.

So, what are the critical differences between a trunnion valve vs floating valve? The main difference is in the design of the ball. In a floating ball valve, the ball is free to float within the body of the valve. This allows the ball to align with the seat, creating a tight seal. In a trunnion ball valve, the ball is attached to a trunnion, which is a short, cylindrical piece of metal. The trunnion supports the ball as a fulcrum to pivot on. This advantage is that it strengthens the valve and can prevent the ball from breaking or deforming under high pressures.

Floating ball valves have a lower risk of leakage and are easier to maintain than trunnion ball valves. They are also less expensive. On the other hand, trunnion ball valves have superior flow characteristics and can handle higher pressures.

Floating Ball Vs. Trunnion Mounted Ball Valve: Which One Is Best To Choose? 

There are many factors to consider when choosing between a trunnion mounted vs floating ball valve. Both have advantages and disadvantages, so the right choice for needs will depend on various factors. To help make the best decision, we’ve prepared a quick overview of these two types of floating ball vs trunnion mounted ball valve.

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  • Floating ball valves have a ball that floats on a seat, which gives it lower risk of damage from friction. Trunnion-mounted ball valves have a ball attached to a trunnion, providing it with a higher level of durability.
  • Floating ball valves are typically less expensive than trunnion mounted ball valves. Trunnion-mounted ball valves are often used in heavy-duty applications because of their durability.
  • Floating ball valves can be used in a wide variety of applications such as chemical processing and water treatment. Trunnion-mounted ball valves are typically used in oil and gas pipelines, power plants, and chemical plants.

Bottomline

In conclusion, there are a few keys to trunnion ball valve vs floating ball valve. Trunnion ball valves have a higher pressure rating and are therefore better suited for high-pressure applications. Floating ball valves are less likely to leak, making them a better choice for applications where leaks are a concern. Both valves have advantages and disadvantages, so selecting the correct type of industrial valve manufacturer for the specific application is essential. Contact Dombor to know more details of ball valve.

The company is the world’s best Floating Ball Valve supplier supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

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