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The purpose of the booster pump is to increase water pressure going into the R.O. System. The working pressure of RO Membrane is about 5-6 kg/cm2 (70-80 psi), so we have to use booster pump to increase pressure. Every 10 meters of height can produce 1kg / cm2 (14.22 psi) of water pressure.

If your water pressure is 6 kg/cm2 (80psi), it's enough to run R.O. System nicely and do not need a booster pump. Conversely, if the inlet pressure is higher than the above values, you need to install the Cut-Down Pressure Valve, in order to avoid over pressure, causing filter housing or pipe burst.

Cut-Down Pressure Valve / Plastic

Pressure Limiting Filter Protection Valve Single Check Z-LV-FPV-0104

1/4” NPT (Outlet Pressure: 40 / 50 / 70 / 80 / 125 PSI ±10% at 150PSI.)

Cut-Down Pressure Valve / Plastic

Filter Protecting & Pressure Regulator Valve / Plastic

Pressure Limiting Filter Protecting Valve Single Check Z-LV-FPV-0308

3/8” NPT (Outlet Pressure: 40 / 50 / 70 / 80 / 125 PSI ±10% at 150PSI.)

Cut-Down Pressure Valve / Plastic

Limiting Valve / Plastic / Double Check Valve

Pressure Limiting Filter Protection Valve (Dual Check Valve Included) Z-LCV-FPV-0104-50

1/4” NPT (Outlet Pressure: 40 / 50 / 70 / 80 / 125 PSI ±10% at 150PSI.)

Cut-Down Pressure Valve / Plastic / Double Check Valve

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