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Z Series RO System by GE Osmonics
Inlet Water Sensor:
The Inlet Water Sensor monitors the quality of the feed water. Input water quality is
compared to the output (product) water and is displayed as "percent rejection" on the
front panel.
Disinfect Inlet Valve:
The Disinfect Inlet Valve is a 1/4 turn ball valve which connects to the input water side
of the pump. The valve is used whenever cleaners or disinfectants are introduced to the
unit. The valve can also be used as a sample port for testing input water for chlorine or
for hardness.
WARNING:
Water from this port is not RO product water and should not be used for dialysis
solutions.
NOTE:
This port is also a good source of pretreated filtered water to fill containers for cleaner or
disinfectants if the RO product water is not available.
High Pressure Pump:
High-Pressure Pump boosts input water pressure to the Reverse Osmosis Membrane
Assembly (ROMA) by as much as 250 PSI. Two types of pumps are available on the Z-
Series units. Both pump styles are multi-stage centrifugal. The standard is of
submersible style; the option has an open drip proof motor. The RO pump discharge
pressure is displayed as membrane supply on a 0 to 600 PSI panel mounted gauge.
Submersible style multi-stage pumps are enclosed in a stainless steel housing. The Air
Bleed Valve is used to purge air from the housing.
Reverse Osmosis Membrane Assembly (ROMA):
Three to six ROMA’s may be included in the Z-Series. Each thin film (TFC) membrane
provides up to 2000 gallons per day for Direct Feed units and 2400 gallons per day of
product water for Indirect Feed units dependent upon feed water quality and
temperature. The product water flow is read on a panel mounted flow meter.
Waste Pressure:
The Waste Pressure is displayed on a 0 to 600 PSI panel mounted gauge as Membrane
Waste. The differential pressure of the supply and the waste is used to determine the
need for cleaning the membranes.
Pressure Regulator Valve:
The Pressure Regulator Valve is an adjustable relief type valve. This valve is located off
of the RO waste stream, and relieves excess waste pressure. The relieved water is then
passed through the Waste Recirculation Flow Meter and fed into the feed water side of
the RO pump.
1238339b – 16Oct03 1 - 7 General Information