HygroMatik WL-RO-170, Руководство пользователя

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Pressure regulator (connected to system separator)
The pressure regulator lowers the inlet side pressure (admission
pressure) to the desired pressure on the outlet side. The outlet
pressure is set to the maximum permitted input pressure of the
reverse osmosis, using a control dial.
Reverse osmosis
Reverse osmosis serves to transform drinking water according
to the applicable drinking water regulations into desalinated
water for filling humidifiers or any other system that may be
operated using desalinated water.
Reverse osmosis includes:
• Automatic valve in the raw water inlet
• Pressure switch to monitor the inlet pressure in the raw
water (dry-run protection for the high-pressure pump)
• High-pressure pump (isolation valve pump)
• Stainless steel pressure pipe
• Powerful low-energy membrane
• Two non-return valves in the permeate line
• Pressure gauge, valve and non-return valve to adjust the
concentrate recycling
• Flowmeter for permeate flow
• Pushbutton for switching on and off
• Conductivity measuring cell
• Connecting pipework
Pressure vessel
Following reverse osmosis, a pressure vessel is installed that is
filled with permeate during operation.
When production is ceased for stand-by mode, in the event of a
minor pressure drop in the system to be filled treated water from
the pressure vessel is fed in. The water treatment plant will only
resume work when the pressure vessel is empty.
The purpose of using a pressure vessel is to prevent frequent
switching on and off of the water treatment system due to minor
pressure drops in the system to be filled.
Sampling valve/pressure gauge
A sampling valve and pressure gauge are installed in the perme-
ate line.
To determine the water quality of the permeate, e.g., the conduc-
tivity, water samples can be taken via the sampling valve.
The current pressure in the pressure vessel can be monitored by
help of the pressure gauge.
Control device
A control device is provided to control and monitor functional
processes and monitor limit values. Two LED signal lamps
allow for determining system state.