What is trunnion mounted ball type?

The lug-type ball valve, also known as the bracket ball valve, is a valve type widely used in the field of fluid control. Its unique structure and design make it stand out in various industrial applications. I will give you an in-depth discussion of the structure, working principle and important position of the lug-type ball valve in fluid control, and lead you to appreciate the wonders of this engineering technology.

1. Basic concept: What is a lug ball valve?

A lug-type ball valve is a ball valve in which the ball is supported by two lugs or bearings, allowing the ball to rotate freely in the valve. This design structure provides the valve with higher stability and reliability, allowing it to perform well in environments such as high pressure, high temperature and harsh media.

2. Structural features: components of lug-type ball valves

Valve body: The valve body of the lug-type ball valve is usually made by casting or forging process, and the materials are mostly carbon steel, stainless steel or alloy steel. There is a fluid channel inside the valve body, which cooperates with the ball to achieve on-off control of the fluid, high temperature check valve.

Ball: The ball is the key component of the lug ball valve, usually made of stainless steel or other high-strength materials. The surface of the ball is precision machined to ensure sealing performance with the valve seat. The ball is supported by two lugs or bearings, allowing it to rotate freely in the valve.

Lug or bearing: Lug or bearing is the support structure of lug-type ball valve, which is used to support the ball and ensure its stable rotation. These components are typically made from high-strength materials and undergo precision machining and heat treatment to increase their load-bearing capacity and service life.

Valve seat: The valve seat is a sealing component that cooperates with the ball. It is usually made of elastic materials, such as polytetrafluoroethylene (PTFE) or other high-performance sealing materials. The design and material selection of the valve seat are critical to ensuring the sealing performance and service life of the valve.

Actuator: The actuator of the lug-type ball valve is used to drive the ball to rotate to achieve on-off control of the fluid. The actuator can be a manually operated handle, gearbox, or an electric or pneumatic actuator.

3. Working principle: Fluid control mechanism of lug-type ball valve

When the lug-type ball valve is in a closed state, the ball and the valve seat fit tightly to prevent fluid from passing through. When the valve needs to be opened, the actuator drives the ball to rotate 90 degrees to align the fluid channel with the inlet and outlet, thereby achieving smooth flow of fluid. Since the rotation of the ball is supported by the lugs or bearings, the operating torque is smaller, making the valve operation lighter and more flexible, bronze wafer check valve.

4. Application advantages: The value of lug-type ball valves in fluid control

High sealing performance: Due to the precise fit of the ball and the valve seat and the use of elastic seat materials, the lug-type ball valve has excellent sealing performance and can effectively prevent fluid leakage.

Small fluid resistance: The full-bore design of the lug-type ball valve makes the fluid flow with almost no resistance, reducing energy loss and improving system efficiency.

Wide scope of application: The lug-type ball valve is suitable for a variety of fluid media, including gas, liquid, steam and fluids containing solid particles or corrosive media, bronze plug valve.

Light and flexible operation: Due to the use of lug or bearing support structure, the operating torque is small, making the valve operation more light and flexible.

Compact structure: The lug-type ball valve has a compact structure, takes up little space, and is easy to install and maintain.
High reliability: By using high-quality materials and advanced manufacturing processes, lug-type ball valves have excellent corrosion resistance and wear resistance, and can operate stably for a long time in harsh environments.

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Through my in-depth discussion, everyone should understand the basic concepts, structural characteristics, working principles and application advantages of lug-type ball valves. I should also continue to learn and research new technologies and products to meet increasingly stringent industrial needs. With its excellent performance and wide range of applications, the lug-type ball valve is undoubtedly one of the focuses of my attention and research.