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When it comes to ball valves, the V-port ball valve plays an important role in the valve world. This V-shaped ball or V-shaped seat is utilized with higher velocity applications that would otherwise damage a normal ball valve.  These ¼ turn control valves can be flanged or non-flanged. The seats can be rigid or flexible metal or PTFE which is a synthetic fluoropolymer better known as Teflon. The V-port ball valve is also used when precision cannot be sacrificed because corrosive liquids (clean or dirty) or gases going through the piping system need to be sustained to critical and controlled specifications.

DIDLINK is a leader in the industry when it comes to the V-port ball valve. Our valves have a high quality and range in size from ½” to 12” and available in carbon steel, stainless steel, brass and cast iron.

Rising Stem Ball Valve (RSBV) is a new type of ball valve, which is mainly used to cut off, distribute, and change the flow direction of medium in the pipeline. RAYS Rising Stem Ball Valve with all-metal structure and fire proof design, can be applied to the temperature range from -196℃ to 600℃. Compared with the conventional ball valve, the RSBV’s ball & seat movement has no friction, small opening & closing torque, and better sealing performance. It can be adapted to general working medium such as: water, solvent, acids, and natural gas. However, it is also suitable for working conditions such as: oxygen, hydrogen peroxide, methane, ethylene, etc.

Rising Stem Ball Valve utilizes the cooperation of the inclined surface of the bottom surface of the valve stem and the spiral groove to realize the tilting and rotation of the ball. When the valve is opened, the ball is tilted away from the valve seat. Then, the fluid in the pipeline passes through the valve along the spherical surface evenly, which reduces the local erosion of the valve seat by the high-speed fluid. Finally, the ball rotates to full open position. When the valve is closed, the ball relies on the mechanical wedge of the stem bevel to be used on the seat to produce the required sealing pressure to ensure reliable sealing performance. The sealing specific pressure is adjusted according to the changes of fluid erosion wear, corrosion degree & working pressure, which prolongs the service life of the valve.