AVRO 125
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Reverse Osmosis SystemProduct Data Sheet H 49 Reverse Osmosis System AVRO 125TS AVRO 125 TL Fig. 1: Reverse osmosis system AVRO 125 TS/TL Designated application The reverse osmosis system AVRO 125 TS/TL is designed for the demineralisation of feed water whose composition meets the quality requirements of the TrinkwV (German Drinking Water Ordinance). Process The reverse osmosis system AVRO 125 TS/TL works according to the reverse osmosis principle. During the osmosis process, watery solutions of different concentrations are separated by a semi-permeable membrane2). Following the law of nature, the concentrations try to equalise. On the side of the higher initial concentration, the so called “osmotic pressure” is generated. During the reverse osmosis, this “osmotic pressure” is opposed by a higher pressure and as a consequence, the process is reversed. The particular advantage of the reverse osmosis technology compared to other water treatment technologies is the fact that - apart from the removal of dissolved salts - bacteria, germs, particles and dissolved organic matter are reduced as well. Application limits • < 22 °dH (39.2 °f, 3.92 mmol/l), no water analysis required • Free chlorine, not detectable • Iron < 0.10 mg/l • Manganese < 0.05 mg/l • Silicates < 15 mg/l • Chlorine dioxide, not detectable • Turbidity < 1 TE/F • Colloid index < 3 • pH range 3 - 9 If the total hardness is > 22 °dH (39.2 °f, 3.92 mmol/l), or the sulphate concentration is > 250 mg/l, a water analysis is required. Note: The permeate resulting from the reverse osmosis system is not potable but requires additional treatment (blending, salting) in order to be used as drinking water. Installation requirements Generally, a drinking water filter as well as a system separator (DK) have to be installed upstream of the reverse osmosis system AVRO 125 TS/TL. If the feed water to be treated contains chlorine, it must pass through an optional activated carbon filter downstream of the softener. Function The water is directed to the inlet of the feed water section via the fine filter (filter element21). Then, the water flows to the high pressure pump via the inlet solenoid valve which is followed by a pressure switch for minimum pressure. By means of a control valve, the pressure generated by the pump is reduced to the required operating pressure and the water is directed to the membrane. The membrane separates the water into the partial flows “permeate” and “concentrate”. A partial flow of the concentrate is returned to the feed water by means of a pressure-independent control orifice and thus ensures a steady flow over the membrane and increases the economic efficiency of the reverse osmosis system. At the same time, the concentrate volume flow is directed via an AVRO treatment module21 where - due to the applied direct current - seed crystals are formed at the cathode. These crystals are flushed out with the remaining concentrate so that the reverse osmosis membrane is protected against clogging. After each system switch-off (tank full) or in case of disturbances, retained particles are flushed from the membrane by means of the inlet solenoid valve and a solenoid valve which is connected in parallel to the control valve “concentrate”. The hydraulic build-up of the system is designed to register the concentrate and permeate volumes by means of flow meters and to indicate the values at the controller. The system recovery may also be retrieved at the controller. 11 The permeate produced is directed to an opaque supply tank which features a level control with three switching contacts. In order to supply the consumers with permeate, a pressure booster as centrifugal pump made of high performance plastics, incl. pressure switch and membrane expansion vessel are integrated in the system. Scope of delivery Basic equipment Free-standing housing made of opaque PE to receive all aggregates and control elements. The free-standing housing also serves as supply tank1*. Microprocessor controller with LCD display, voltage-free collective fault alarm and voltage-free signal contact (maintenance interval, various pre-alarms) installed in free-standing housing. Sliding-vane rotary pump made of corrosion-proof brass with motor as high pressure pump to supply the membrane, including control valve for operating pressure and pressure gauge. 11 External pressure booster system as centrifugal pump with integrated pressure switch and membrane expansion vessel to supply consumers downstream. Hydro module for the water supply within the membrane system. Integrated valves and measuring instruments for easy system adjustment. Fine filter with integrated pressure reducer, preset to 2.5 bar. Flow meter to measure the volume flows permeate and concentrate. AVRO treatment module installed in a pressure pipe made of pressure-resistant PE. Ultra-low pressure reverse osmosis membrane2*, installed in a pressure pipe made of high-strength PE. Operation manual. 1 only AVRO 125 TS 2) consumables Edition: 17.04.2018 We reserve the right to modifications! Page 1 of 3 Supersedes: 16.01.2018 edited by: phar-mrie • g:\ PDB-H49-INTER_014_UMKEH

Reverse Osmosis SystemProduct Data Sheet H 49 Optional accessories Note: Existing systems may be retrofitted with optional components. For additional information, please contact your local Grunbeck representative or the Grunbeck headquarters in Hoechstaedt. Connection kit for AVRO 125 TS/TL 2 flexible connection hoses DN 15 L = 600 mm) for feed water and permeate, 1 drain hose for concentrate Order no. 752 830 Connection block for AVRO 125 TS/TL Connection block (installation length 190 mm - 1“ male thread) chemically nickel-plated with two shut-off valves for installation in the pipe....

Reverse Osmosis SystemProduct Data Sheet H 49 Technical specifications Following a water analysis, the technical customer service can set a higher recovery. ® BOXER-KD C Activated carbon filter AKF ® Euro-system separator DK-2 Mini ® AVRO 125 TS/TL Note: In the concentrate and permeate pipe provided by others on site, a feature for the separation of the pipe must be available (e. g. screw connection). Edition: 17.04.2018 We reserve the right to modifications! Page 3 of 3 Supersedes: 16.01.2018 edited by: phar-mrie • g:\ PDB-H49-INTER_014_UMKEHROSMOSE_AVRO.DOCX