The intelligent liquid ring vacuum pump

Edwards Vac­u­um has com­bined its years of com­pre­hen­sive know-how and inno­v­a­tive tech­ni­cal exper­tise to devel­op a rev­o­lu­tion­ary range of new liq­uid ring pumps – the ELRi series. Megha Ajmal, Prod­uct Man­ag­er for Rough Vac­u­um prod­ucts com­ment­ed “Made for appli­ca­tions which are wet, humid as well as cor­ro­sive, this prod­uct offers a range of fea­tures and ben­e­fits that will dis­tin­guish itself from oth­er com­peti­tor pumps in the mar­ket. From the abil­i­ty to opti­mise process­es to save ener­gy, ELRi com­ple­ments our range of solu­tions we offer for the indus­tri­al and rough vac­u­um markets”.

Innovation meets Reliability

The tech­ni­cal fea­tures are of cen­tral impor­tance in this new devel­op­ment. The stain­less steel impeller, end­plates, liq­uid reser­voir and heat exchang­er makes this pump high­ly resilient against cor­ro­sion and harsh process gas­es. The inter­nal injec­tion chan­nels reduce the risk of leak­age while the hor­i­zon­tal motor flange arrange­ment saves pre­cious time on main­te­nance. Use of mechan­i­cal seals also ensure reli­able oper­a­tion by pre­vent­ing leaks as well as extend­ing ser­vice inter­vals. All this state-of-the-art tech­nol­o­gy is con­tained in a com­pact noise can­celling stur­dy canopy pro­tect­ing and extend­ing life­time of the elec­tron­ic components.

Intelligence calms

The ELRi is equipped with not just one but two VSD. While the main VSD match­es the speed of the pump to vac­u­um lev­el by adjust­ing its speed, the sec­ond VSD reg­u­lates the water flow through the cen­trifu­gal pump accord­ing to the oper­at­ing con­di­tions to avoid risks of cav­i­ta­tion. A patent­ed algo­rithm always main­tains a per­fect har­mo­ny between the two VSD’s ensur­ing opti­mal per­for­mance. In addi­tion, it is pro­tect­ed against auto­mat­ic seizure, so users do not have to wor­ry about the pump fail­ure after long peri­ods of inactivity.

Lower utility consumption

The inte­grat­ed Air log­ic con­troller not only enables the mon­i­tor­ing of impor­tant fea­tures and para­me­ters of the pump but also offers the option of set-point con­trol. This allows users to have a vac­u­um pump that match­es the process demand sav­ing ener­gy. While the ECOn­trol box even allows you to con­nect and con­trol mul­ti­ple ELRi pumps, the Icon Box enables smart mon­i­tor­ing and remote con­trol­ling ensures opti­mal ser­vic­ing to get max­i­mum uptime with your pumps. Along with this, water con­sump­tion is also reduced as the sep­a­ra­tor is only filled up when required.

Designed to meet the demand

The ELRi series comes in pump­ing capac­i­ty 750–1050 m³/hr cov­ers a wide range of appli­ca­tions in the cen­tral vac­u­um, phar­ma­ceu­ti­cal , plas­tics, con­vey­ing and food appli­ca­tions. Speak­ing about the range of pumps offered, Megha Ajmal com­ments “While the stan­dard range of pumps is a per­fect solu­tion of gen­er­al indus­tri­al appli­ca­tions, our Heavy-Duty range is designed with all process wet­ted parts to be stain­less steel”. All pumps are also fit­ted with spray noz­zles as stan­dard which are par­tic­u­lar­ly use­ful for high steam load appli­ca­tions allow­ing to pump increased capac­i­ty of gas load.” More­over, the man­u­al and auto­mat­ic modes of flush­ing allow oper­a­tion in even in the dirt­i­est appli­ca­tions with min­i­mal downtime.