Application of Trunnion Ball Valves on Skid-mounted Units

Characteristics of Trunnion Ball Valve

Structural design
• The trunnion ball valve adopts a trunnion support structure. The ball is fixed on the valve body through the trunnion. This design enables the ball to remain stable in a high-pressure environment and avoids the ball displacement problem that may occur in a floating ball valve under high pressure.

• It is usually designed as double block and bleed (DBB), which can cut off the upstream and downstream fluids when closed and discharge the residual fluid through the discharge port in the middle cavity.

Sealing performance
• The trunnion ball valve has excellent sealing performance. The leakage rate of its soft-sealed version can reach level VI or zero leakage. This sealing performance is particularly important when handling flammable, explosive or toxic and harmful fluids, as it can effectively prevent fluid leakage and ensure operational safety.

Application advantages of trunnion ball valves in skid-mounted systems

Adaptability to high-pressure conditions
• In the applications of industries such as petroleum and natural gas, skid-mounted systems often need to handle high-pressure fluids. The high-pressure adaptability of trunnion ball valves makes them an ideal valve choice in skid-mounted systems. in the skid-mounted system of natural gas pipelines, trunnion ball valves can withstand pressures up to Class 600, ensuring reliable control of fluid flow under high pressure.

Flow control and switching
• Trunnion ball valves can be opened and closed quickly, which is very beneficial for flow control and switching operations in skid-mounted systems. In some skid-mounted equipment that requires frequent switching of fluid flow directions, such as the skid-mounted system of chemical reaction devices, trunnion ball valves can respond quickly to operation instructions and realize the switching between different process flows to improve production efficiency.

Oil and gas industry
• In natural gas compression skid-mounted systems, trunnion ball valves are used to control the inlet and outlet and bypass of natural gas. Due to the high pressure of natural gas, the high-pressure sealing performance and low operating torque characteristics of trunnion ball valves enable them to work reliably. At the same time, their fast switching ability can also meet the start-up and shutdown requirements of compressors to ensure the safe operation of the system.
• In skid-mounted metering stations of petroleum pipelines, trunnion ball valves are used to isolate metering equipment and pipeline systems. When performing maintenance or calibration of metering equipment, trunnion ball valves can isolate the metering equipment from the pipeline system to ensure the accuracy and safety of metering work.

Chemical industry
• In skid-mounted systems of chemical reaction devices, trunnion ball valves are used to control the inlet, outlet and discharge of reaction materials. Due to the high corrosiveness and danger of chemical materials, the corrosion resistance and sealing performance of trunnion ball valves can effectively prevent material leakage and ensure the safety of operators and environmental protection.
• In skid-mounted systems for loading and unloading chemical products, trunnion ball valves are used to control the fluid flow during loading and unloading. Its fast switching ability can improve loading and unloading efficiency. At the same time, its double block and bleed function can quickly empty the residual materials in the pipeline after loading and unloading to avoid waste and pollution of materials.