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 |
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| ZLR-K6 | 360 | 37 | 2940 | 80 – 120 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K9 | 540 | 75 | 1480 | 120 – 150 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K12 | 720 | 90 | 1480 | 150 – 200 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K15 | 900 | 110 | 1480 | 180 – 220 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K20 | 1200 | 132 | 980 | 200 – 250 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K25 | 1500 | 160 | 980 | 250 – 300 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-K30 | 1800 | 185 | 980 | 300 – 350 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| 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 |
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| ZLR-KC6 | 360 | 75 | 2940 | 120 – 150 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC9 | 540 | 110 | 1480 | 150 – 170 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC12 | 720 | 132 | 1480 | 170 – 200 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC15 | 900 | 185 | 1480 | 200 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC20 | 1200 | 250 | 980 | 250 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC25 | 1500 | 315 | 980 | 300 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC30 | 1800 | 355 | 980 | 350 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| ZLR-KC35 | 2100 | 400 | 980 | 400 | Ex II innen: 2G IIC T3 Ex II außen: 2G IIC T3, T4 |
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| Overview Liquid Ring Vacuum Compressor ZLR-LK | ||||||
| Type | Outlet Flow Rate [m3/min] | Ultimate Vacuum [Bar] (max.) | Power Consumption [kW] | Speed [rpm] | Water Supply [m3/h] | ATEX Classification |
| ZLR-LK15 | ≥ 15 | 8 | 185 | 1450 | 8-10 | Ex II inside: 2G IIC T3 Ex II outside: 2G IIC T3, T4 |
| ZLR-LK20 | ≥ 20 | 8 | 250 | 1450 | 10-12 | Ex II inside: 2G IIC T3 Ex II outside: 2G IIC T3, T4 |
| ZLR-LK26 | ≥ 20 | 8 | 250 | 1450 | 10-12 | Ex II inside: 2G IIC T3 Ex II outside: 2G IIC T3, T4 |
| ZLR-LK32 | ≥ 30 | 8 | 355 | 1450 | 16-19 | Ex II inside: 2G IIC T3 Ex II outside: 2G IIC T3, T4 |
| ZLR-LK42 | ≥ 40 | 8 | 400 | 1450 | 20-24 | Ex II inside: 2G IIC T3 Ex II outside: 2G IIC T3, T4 |