Ball Valves
Unyazi supplies high-performance ball valves for dependable flow isolation in industrial process systems. Their fast quarter-turn operation makes them suitable for applications where liquids or gases must be started, stopped or isolated quickly.
Our range includes metal-seated and soft-seated ball valves for hydrocarbons, process fluids and other demanding media. We help clients select the correct valve based on the operating pressure, temperature, materials and control requirements of the system.
How Ball Valves Work?
A ball valve uses a rotating ball with an opening through its centre to control flow. When the opening is aligned with the pipeline, fluid or gas can pass through. Turning the ball by 90 degrees closes the flow path and isolates the line.
This simple design allows for quick operation and reliable shutoff. Ball valves are therefore widely used in systems where fast response, secure isolation and consistent performance are important.
Key Benefits
Fast Quarter-Turn Operation
Ball valves open or close with a simple 90-degree turn. This allows for quick isolation when a fast response is required.
Reliable On-Off Control
They provide dependable control for starting or stopping the flow of liquids and gases. This makes them well suited to pipelines and industrial process systems.
Secure Shutoff
When correctly selected, ball valves provide a tight and reliable seal. This helps reduce leakage and maintain safe operating conditions.
Manual Or Automated Operation
Ball valves can be operated by hand using a lever or gearbox. They can also be fitted with pneumatic, electric or hydraulic actuators for remote control.
Suitable For Different Process Conditions
A range of materials, seats and seals can be selected to suit different pressures, temperatures and process media. This allows the valve to be matched to the application.
Built For Industrial Environments
Ball valves are designed to perform in demanding systems involving hydrocarbons, harsh fluids and frequent operation. The correct configuration can support long-term reliability and reduced maintenance.
Metal-Seated Ball Valves
Metal-seated ball valves are designed for applications where high temperatures, harsh fluids, pressure changes or frequent operation may affect standard seating materials.
Their strong seating surfaces provide improved resistance to wear and make them suitable for demanding process conditions. The valve materials and coatings can also be selected to suit the media passing through the system.
Soft-Seated Ball Valves
Soft-seated ball valves use flexible seating materials to form a tight seal around the ball. They are commonly used in applications where dependable shutoff is required under suitable pressure and temperature conditions.
The correct seat material is selected according to the process fluid, operating temperature and required sealing performance.
Where Ball Valves are Used?
Ball valves are used to isolate process lines, equipment and sections of pipework across a wide range of industrial systems. Their compact design and fast operation make them suitable where quick response and dependable shutoff are important.
Process and transmission pipelinesHydrocarbon handling systemsBatch processing linesBypass linesMonitoring systemsEmergency shutdown applicationsGeneral process fluid systems
Selecting and Operating the Correct Ball Valve
Choosing the correct ball valve involves more than matching the pipe size. The process media, pressure, temperature, operating frequency and required shutoff performance must all be considered.
Unyazi assesses the valve body, seat, seal and coating requirements to ensure the selected valve suits the application. Ball valves can be supplied for manual operation using a lever or gearbox, or fitted with pneumatic, electric or hydraulic actuators for remote and automated control.
We can also assist with matching the valve and actuator to the required operating speed, torque and control system.
Connect with us for excellence in
Valve and Automation Solutions