Here you will find the diagram with all the elements on a reverse osmosis system.
Click on the “plus” (+) button to expand the details and real-life samples of the elements.
Osmosis vs. Reverse Osmosis process comparison
A typical 5-stage RO system diagram
Installed RO system diagram
This is the diagram of a typical 5-stage RO system that completely installed with color-coded tubing.
- 1, 2, 3: The 1st, 2nd, & 3rd pre-filters
- A: Cold Feed-water line
- B: Feed-water inlet
- C: Waste-water outlet
- D: Drain line
- E: RO water (not polished)
- F: Storage tank (Pressuzied water tank)
- G: Polished RO water outlet
- H: Faucet/Water Dispenser
Separated housing and caps of stages
The housing and the caps are separated for filters installing or replacement. In 3 pre-filters, the cap is fixed, the housing is flexible, it is removed from the caps with an RO wrench.
RO Connectors diagram in an RO system
All the stages in an RO system are connected with quick fit connectors and valves. We have several sizes of connectors and tubing.
At position number 6 in the diagram is the check valve or one-way valve. This is a small and inexpensive part, but it is important to keep the system functions properly.
Below are the details of the RO connectors in the diagram.
- 1: Valve adapter
- 5: Auto shut-off valve
- 6: Check valve
- 7: 1/8″ male elbow
- 8: 1/4″ male elbow
- 10: 1/4″ male T-Run
- 11: Flow restrictor
- 12: Drain saddle
RO Check valve diagram
6-Stage RO system with a booster pump diagram
RO faucet diagram [Air gap & Non-Air Gap]
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