Reverse osmosis (RO) system uses the principle of reverse osmosis to remove mainly dissolved salts from water while removing some macromolecules and small particles etc. that were not removed in the previous stage. The pneumatic actuator valves can play a lot of roles in this system.
It is mainly driven by pressure, forcing the solvent in the solution to separate from the solute by the retention effect of the semi-permeable membrane.
In the following, we will introduce you the valves that can be used in reverse osmosis systems. We hope this will help you understand and select the right valve.
Pneumatic Butterfly Valve
The main advantages of pneumatic butterfly valve are simple structure, small volume and weight, can also regulate the flow of media. Fluid resistance is small, medium and large diameter pneumatic butterfly valve full open effective flow area is larger, opening and closing quickly and effortless, disc wrench rotation 90 angles to complete opening and closing.
Pneumatic Ball Valve
Pneumatic ball valves are mainly used in pipelines to cut off fast, distribute and change the flow direction of the medium.
The switch is light, small in size, can be made into a large diameter, can be sealed, has a simple structure, and is easy to maintain.
The main function of the check valve is to prevent the backflow of the medium, to prevent the reverse rotation of the pump and the driving motor, and discharge the medium into the container. It is very suitable for use in the RO system to prevent the backflow of the water medium.
It is a very important cut-off class valve, whose seal is made by applying torque to the valve stem, which exerts pressure on the valve flap in the axial direction so that the sealing surface of the valve flap fits closely with the sealing surface of the valve seat and stops the medium from leaking along the gap between the sealing surfaces.