Liquid ring compressors

The liquid ring compressors are robust and easy in servicing, thanks to there for many years tested construction – to an eccentrically stored impeller in the housing. The rotor is not touching the casing in which there is a precise amount of liquid that during rotation forms a ring, caused from the centrifugal force, that follows the casing outer shape. Operating liquid is water as usual; however, other liquids could be also used. This depends on the sphere where ZM Vakuum – liquid ring compressors are applied.

Liquid ring compressors (also “water ring compressors”) are inured to liquids, steams as well as to solid particles.

A unique quality of the liquid ring compressors is the iso thermal compression. This permits, for e.g., conveying also the media which tend to the polymerisation.

The oil free compression is possible because instead of oil, a medium for sealing, cooling and lubrication serves the liquid ring itself. The liquid ring can consist of different materials depending on process and use. This way in complicated processes a contamination is avoided. The service liquid of which the liquid ring consist can be adapted to the process and be integrated into it. Thus material and disposal costs can be saved. Our engineers consult you with pleasure!

The design of the liquid ring compressors can guarantee high security during compression of ignitable gases and steams.

Thanks to uncomplicated design of the liquid ring compressors, adaptation of the media-touched construction materials to the conveyed medium is possible. corrosive, contaminated and/or aggressive media can be conveyed without problems. Here we offer big number of different material combinations compound with recommendations for suitable service liquids.

We offer compressors up to a size of 70,000 m3/h. If you are interested and have any inquiries about our liquid ring compressors, please feel free to contact us.

Overview Liquid Ring Compressors ZLR-K/KC
Type Outlet Flow Rate [m3/h] Ultimate Vacuum [Mpa G] Power Consumption [kW] Speed [rpm] Water Supply [l/min] ATEX Classification
ZLR-K1.5 96 0,15 – 0,3 18,5 2940 30 – 50 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K3 180 22 2940 50 – 80 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K6 360 37 2940 80 – 120 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K9 540 75 1480 120 – 150 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K12 720 90 1480 150 – 200 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K15 900 110 1480 180 – 220 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K20 1200 132 980 200 – 250 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K25 1500 160 980 250 – 300 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-K30 1800 185 980 300 – 350 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC1.5 96 0,3 – 0,6 22 2940 60 – 100 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC3 180 37 2940 80 – 120 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC6 360 75 2940 120 – 150 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC9 540 110 1480 150 – 170 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC12 720 132 1480 170 – 200 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC15 900 185 1480 200 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC20 1200 250 980 250 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC25 1500 315 980 300 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC30 1800 355 980 350 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4
ZLR-KC35 2100 400 980 400 Ex II innen: 2G IIC T3
Ex II außen: 2G IIC T3, T4

 

Overview Liquid Ring Vacuum Compressor ZLR-LK
TypeOutlet Flow Rate [m3/min]Ultimate Vacuum [Bar] (max.)Power Consumption [kW]Speed [rpm]Water Supply [m3/h]ATEX Classification
ZLR-LK15≥ 15818514508-10Ex II inside: 2G IIC T3
Ex II outside: 2G IIC T3, T4
ZLR-LK20≥ 208250145010-12Ex II inside: 2G IIC T3
Ex II outside: 2G IIC T3, T4
ZLR-LK26≥ 208250145010-12Ex II inside: 2G IIC T3
Ex II outside: 2G IIC T3, T4
ZLR-LK32≥ 308355145016-19Ex II inside: 2G IIC T3
Ex II outside: 2G IIC T3, T4
ZLR-LK42≥ 408400145020-24Ex II inside: 2G IIC T3
Ex II outside: 2G IIC T3, T4

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