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Ball Valves

Ball valves are a crucial component in various industrial applications due to their durability, versatility, and reliability. They offer tight sealing capabilities which makes them suitable for use in demanding environments, and their designs can cater to a range of service conditions and specific requirements. The variety of ball valves available today is extensive, with each type possessing unique features and applications.

To understand this diversity, it is helpful to categorize ball valves based on their key characteristics. These encompass their construction and design, seating material, bore size, performance and application, connection type, and additional specialized features. This organization provides a comprehensive view of the types of ball valves used in the industry and facilitates the selection of the appropriate valve based on specific needs and conditions:

 

  1. Construction and Design

Two-piece, Three-piece, and Top Entry Ball Valves: These designs primarily influence the valve’s maintenance and durability. Two-piece and three-piece ball valves differ by the number of main parts, affecting the ease of maintenance. Top entry ball valves, on the other hand, allow for in-line maintenance.

Fully Welded: These ball valves have a body that’s fully welded to ensure leak prevention.

Side Entry Ball Valves: These have a design where the ball is inserted from the side, allowing easy maintenance.

 

  1. Seating Material

Soft Seated and Metal Seated Ball Valves: These refer to the type of material used for the valve seat, impacting the valve’s performance under different service conditions. Soft seated valves are used for applications requiring a tight seal, while metal seated valves are suitable for high-temperature or severe service applications.

 

  1. Bore Size

Full Bore and Reduced Bore Ball Valves: The bore size determines the level of flow restriction. Full bore valves offer unrestricted flow, while reduced bore valves have a smaller bore that restricts the flow to some extent.

 

  1. Performance and Application

High Performance Ball Valves: These valves are designed for high-pressure, high-temperature, or severe service applications.

Sub Sea Ball Valves: Specifically designed for underwater or subsea applications, they can resist corrosive and high-pressure environments found in deep-sea conditions.

 

  1. Connection Type

Threaded Ends and Flanged Ends: These types define how the ball valve connects to the pipe system. Threaded ends are screwed into place, while flanged ends are bolted, affecting the ease of installation and maintenance.

 

  1. Additional Features

 

Double Block & Bleed, Fire Protection, and DBB Ball Valves: These valves are designed for specific applications. Double Block & Bleed valves provide a dual isolation function, Fire Protection valves are engineered to withstand high temperatures and harsh conditions, and DBB valves are designed for critical process services.

About Us

Karma Instrumentation & Control is a specialist supplier of process control and automation equipment and SI systems, as well as a manufacturer and designer of process and electrical control panels.

Contact Us

• Address: Block A, Unit 3D, Wild Fig Business Park, 1494 Cranberry Street, Honeydew, 2170

• Email: info@karmainstrumentation.co.za

• Call us: 011 794 2859

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