Difference Between Trunnion Ball Valve And Floating Ball Valve

Choosing the proper type of ball valve for industrial applications is critical. The two most commonly used types of ball valves are floating and trunnion. The floating ball valve is a simpler design than the trunnion ball valve. A trunnion ball valve is more dependable and long-lasting. It has a moveable sealing seat that is simple to clean.

In general, a trunnion valve is easier to use. Its metal trunnion secures the ball. The ball hanging within the valve body, and downstream pressure forces it against the downstream seat. The end product is a watertight seal. A floating ball valve, on the other hand, has a floating ball that is attached to a stem.

What is a Trunnion Ball Valve?

A pressure-reducing valve is a trunnion ball valve. It is made of three pieces, with an upper stem that has a fixed valve stem and a lower stem that has a moveable sealing seat. As result, a trunnion ball valve operates more reliably, with good shear force, automated correction, and self-cleaning capabilities. Furthermore, it is perfect for on-off control of suspensions including fine solid particles or viscous media. The trunnion ball valve comes in a variety of sizes. These valves are also more costly than floating valves. The trunnion holds the ball in place and provides enough support. Additionally, the trunnion absorbs extra pressure and stress on the valve seat. As a result, the trunnion-mounted ball valve is used.

Because the ball is located inside the valve seat, it can control the flow of liquids in a pipeline. Because of its dual nature, it can be utilized for both petroleum and water pipes.

The trunnion ball valve works well in both high-pressure and low-pressure applications. When turning, it requires less torque than floating ball valves. While both ball valve forms are equally functional in many situations, the trunnion ball valve is more expensive than the floating range.

what is a Floating Ball Valve?

A floating ball valve is a basic valve with excellent sealing performance. The sphere’s load is passed to the exit sealing ring. The sealing ring should be made from a material that can withstand the sphere medium’s working stress. This valve is commonly used in low and medium-pressure applications.

The ball floats inside the valve of a floating ball valve. It is unrelated to anything. The valve seat has been secured, and the ball has been released. When the pressure changes, the ball travels towards the entrance and forms a tight seal, preventing the flow. To regulate this type of valve, the ball is pushed towards the opening.

In multi-port applications, floating ball valves are often used. They’re great for high- and low-pressure applications, as well as suspensions with microscopic solid particles.

What is the main difference between a trunnion and a floating ball valve?

There are a few differences between trunnion and floating-type ball valves. The top and lower stems of the trunnion are permanent, but the floating valve contains a moving ball. This type of valve has a more stable operating state, self-cleaning capability, and automated covering. This type of valve is ideal for applications requiring on-off flow control of fibers, solid particle suspensions, and extremely viscous media.

The first basic difference between floating and trunnion valves is their mechanical construction. Floating ball valves are often installed in smaller pipelines. They are widely used because they are cheaper to produce. A leak-tight seal is formed by sandwiching the ball between two concave-shaped seats. Unlike trunnion valves, which have fixed seats that do not move, the floating ball valve includes a pivoting actuation shaft. This enables the valve to retain an excellent seal while preventing leaking at the stem-bonnet junction.

Floating ball valves are less expensive than trunnion-mounted ball valves. They contain fewer internal components, making them more convenient. They can also withstand higher pressures. However, they are not as common as trunnion-mounted valves.

If you’re looking for a ball valve, go no further than Valves Only Europe. We are a premium valve manufacturer in Europe. Valves Only Europe manufactures and supplies valves globally for various sectors from its headquarters in the United States, Germany, Italy, and India. We export to roughly 84 countries worldwide. We aspire to create a difference for our customers internationally by tackling numerous difficulties related to valve manufacturing as well as transportation services. Having an engineering-based workforce allows us to better grasp our clients’ technological requirements.

Some of the valves that we manufacture and export are:

  • Gate Valve
  • Globe Valve
  • Ball Valve
  • Butterfly Valve
  • Control Valve
  • Check Valve
  • Plug Valve
  • Safety Valve
  • Air Valve
  • Plunger
  • Pneumatic Actuated Valve
  • Electric Actuated Valve

We ensure all the technical requirements are met and our in-house production operations are divided into technologically advanced divisions for research and development, testing of products, packaging, and distribution, each led by a certified professional.

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