UNI Geräte 40-EVS Series Operating And Mounting Manual
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Contents
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Operating and mounting manual (translation)EVS________________________________________________________________________________________________________220.100.022-10 page 8 /19 edition 10/2013TM 3300Check the data on material, pressure, temperature, voltage and flow direction with the layout plan ofthe pipework system. In addition, check whether the operating conditions correspond to the technicaldata in the data sheet or on the rating plate.7.2 Troubleshooting planMalfunction Possible causes RemedyNo flow Valve does not open Switch on solenoid drive (800)Check operating voltageWorking pressure too high Compare working pressure with the dataon the rating plateFlange covers were not removed Remove flange coversLow flow rate Clogging in the pipework system Check pipework systemValve leaking at seat,no internal tightnessValve seat gasket (400) or valve seat(100) damaged by external particlesSee section 8 or replace valveNo external tightness Gaskets damaged See section 8 or replace valveValve does not close Connected voltage too high Check whether there is residual voltage,see section 4.1Flange fracture (valve/pipework)Screws not tightened uniformly, matingflanges not alignedAlign pipework.Install new valveNOTICE!Observe section 10.0 before all installation and repair work!Observe section 6.4 when putting the valve back into operation!8.0 Dismantling of the ValveIn addition to the general installation guidelines and the operation safety order, the following pointsmust also be observed:DANGER! Depressurised pipework system Cooled medium Emptied installation Vent pipework systems containing corrosive, inflammable, aggressive or toxicmedia Have dismantling work carried out only by qualified staff (see point 2.3)8.1 Replacement of Wear PartsShut down the valve as described in section 6.2.Switch off and dismantle the solenoid drive as described in the operating manual of the solenoid drive.DANGER!After continuous operation, the solenoid drive may be hot! Danger of burns!During the visual inspection, pay attention to the following points:1. Damage to the valve seat (100).2. Damage to the valve disc sealing (400)3. Wear of the guide rings (206)In case of damage to the valve seat, replace the whole magnetic valve. |
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