Description
The High Pressure Switch RO controls when a pumped reverse osmosis system starts and stops. It is fitted on the product water line between the membrane and the storage tank. As the tank fills, pressure in this line rises. When it reaches the set point, the switch opens and turns off the booster pump and inlet solenoid valve. When you draw water and the tank pressure falls, the switch closes and the system starts making water again.
Signs of a faulty high pressure switch
- Pump runs continuously even when the tank is full
- Pump switches on and off rapidly (short cycling)
- System does not restart after drawing water
- Water running to drain constantly
Key features
- Automatic tank-full cut-off for pump and solenoid valve
- 1/4 inch push-fit or threaded port
- Spade terminals for 24V circuits
- Compact inline design
Specifications
| Function | Tank-full pump cut-off |
| Typical cut-off / cut-in | Approx. 40–60 psi off, 20–30 psi on (model dependent) |
| Voltage | 24V DC circuits |
| Connection | 1/4 inch |
Installation
Install the High Pressure Switch RO on the tubing to the tank, after the check valve. Wire it in series with the low pressure switch and pump. Fill the tank and confirm the pump stops; draw a few litres and confirm it restarts. See related RO spare parts. For background, see Wikipedia.
Frequently asked questions
Why does my pump keep cycling? Often a failing switch, a missing check valve, or low tank air pressure. We can diagnose it.
Can it be adjusted? Some models have an adjustment screw. Most are factory set.
Why buy the High Pressure Switch RO from Farz Water?
Farz Water is a water treatment supplier based in Muscat, serving homes, businesses and projects across the Sultanate of Oman. When you choose the High Pressure Switch RO from us, you get more than a product in a box. Our team checks your water and site conditions first, so the equipment you buy matches your actual needs instead of a generic catalogue size. We explain the options honestly, including when a simpler or lower-cost solution will do the job.
We stock common spares and consumables in Muscat, so filters, lamps, membranes and fittings are available when you need them. Our technicians install and commission equipment, show you how to operate it, and return for scheduled service if you choose an annual maintenance plan. If anything is not working as expected, you can reach us directly by phone or WhatsApp and speak to someone who knows your system.
Order a High Pressure Switch RO in Oman
Farz Water stocks RO spares in Muscat. Contact us or call / WhatsApp +968 9455 4533.
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