Reverse osmosis refers to a process by which water is passed through a thin membrane at high pressure so that any dissolved inorganic substances (such as salt) are removed. This process is used to desalinate saltwater so that it can be used for drinking and other domestic or industrial purposes. This article discusses some features of these desalination systems that help to prolong their lifespan.
A pre-filter is placed on the line that supplies cold water to the reverse osmosis system. Different systems have different filters at this point. The primary role of the pre-filter is to remove solid particles like sand. That particulate matter can damage the reverse osmosis membrane if it is allowed to get to it. The pre-filter prevents that from happening. Thus, the reverse osmosis membrane lasts for longer since it is shielded from particulates.
A Check Valve
This component is found at the exit end of the reverse osmosis membrane. The purpose of this valve is to prevent a backflow of water from the storage tank into the reverse osmosis membrane. If a backflow occurred, the membrane would rupture and you would need to purchase a replacement membrane. The check valve prevents that from happening.
An Automatic Shut Off Valve (SOV)
The SOV reads the pressure inside the storage tank in order to shut down the operations of the RO (reverse osmosis) unit if necessary. When the storage tank is full, the SOV detects a high pressure and automatically shuts off the RO system. When water is drained from the storage tank, the pressure drops and the SOV turns the system on so that more water can be filtered. If the SOV were not present, the RO system would continue filtering water. The excess water would then flow out of the storage tank, resulting in wastage and RO component wear. This automatic shut off mechanism helps to give the equipment some respite. The components are then able to last much longer than they would have lasted if they were working nonstop.
As you can see, you need not worry about the lifespan of reverse osmosis systems. Manufacturers have equipped them with parts that enable them to last for a long time without needing frequent repairs or replacement parts. Your job is to identify a reputable supplier of these RO systems so that you select one that is suitable for your needs. The supplier will also educate you on how to maintain the system in good working condition throughout its lifespan. For more information, contact a company like Water Filter Warehouse.