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MEMDOS LB
Riding on the crest of the waves
The MEMDOS LB is used when the integration of the pump into controls or control circuits is required. Thanks to the sturdy tappet drive with manual or automatic capacity adjustment, the conveyed media such as acids, lyes, coagulants and flocculants are dosed reliably and precisely. To adapt the dosing capacity, either the stroke length can be adjusted mechanically or the speed of the three-phase motor can be regulated by means of a separate frequency converter. On request, the MEMDOS LB pumps can also be supplied with a double-diaphragm system.
MEMDOS LB
- Capacity range 4 – 1020 l/h, up to 16 bar
- Power supply 115 V, 230 V or 400 V
- Material finishes PVC, PP, PVDF and stainless steel
- Infinitely variable stroke length from 0 – 100 %
- A variety of three-phase and alternating current motors
- ATEX versions are available for Zones 1 and 2
- Also suitable for frequency converter operation
- Double-diaphragm system (optional)
- Automatic stroke length adjustment (optional)
Further product views
| MEMDOS LB | 4 | 4-HP | 10 | 10-HP | 20 | 20-HP | 35 | 60 | 80 | 150 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Delivery capacity at max. back pressure | 50 Hz | l/h | 4 | 8.4 | 14 | 24 | 22 | 36 | 63 | 90 | 156 | ||
| 60 Hz | 4.8 | 10.1 | 16.8 | 28.8 | 26.4 | 43.2 | 75.6 | 108 | 187.2 | ||||
| Max. delivery pressure | bar | 12 | 16 | 12 | 16 | 12 | 16 | 10 | 5 | ||||
| Nominal stroke frequency | 50 Hz | RPM | 26 | 72 | 120 | 72 | 120 | 72 | 120 | ||||
| 60 Hz | 31.2 | 86.4 | 144 | 86.4 | 144 | 86.4 | 144 | ||||||
| Suction lift for non-gassing media | mWS | 9 | 8 | 7 | |||||||||
| Max. supply pressure | mbar | 500 | |||||||||||
| Diameter of diaphragm | mm | 52 | 64 | 90 | |||||||||
| Valve size | DN4 | DN6 | DN10 | ||||||||||
| Voltage supply | 230 / 400 V (optional 115 V) | ||||||||||||
| Protection class | IP55 | ||||||||||||
| Insulation class | F | ||||||||||||
| Material | PP, PVC, PVDF, 1.4571 | ||||||||||||
| Weight* | PP | kg | 8 | 8 | 9.5 | ||||||||
| PVC | 8 | 8 | 9.5 | ||||||||||
| PVDF | 8 | 8 | 9.5 | ||||||||||
| Stainless steel (1.4571) | 9.5 | 9.5 | 15.5 | ||||||||||
| Permitted ambient temperature | °C | 5 – 45 (5 – 40 with PVC parts) | |||||||||||
| Permitted media temperature | °C | 80 (with PVC parts 35, with PP parts 60) | |||||||||||
| MEMDOS LB | 110 | 160 | 210 | 260 | 310 | 400 | 510 | 760 | 1010 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Delivery capacity at max. back pressure | 50 Hz | l/h | 114 | 144 | 210 | 264 | 294 | 390 | 504 | 744 | 1020 | |
| 60 Hz | 136.8 | 172.8 | 252 | 316.8 | 352.8 | 468 | 604.8 | 892.8 | 1224 | |||
| Max. delivery pressure | bar | 10 | 8 | 6 | 4 | 3 | ||||||
| Nominal stroke frequency | 50 Hz | RPM | 96 | 120 | 96 | 120 | 96 | 120 | 53 | 76 | 107 | |
| 60 Hz | 115.2 | 144 | 115.2 | 144 | 115.2 | 144 | 63.6 | 91.2 | 128.4 | |||
| Suction lift for non-gassing media | mWS | 7 | 6 | 4.5 | 1 | |||||||
| Max. supply pressure | mbar | 500 | ||||||||||
| Diameter of diaphragm | mm | 90 | 120 | 150 | 185 | |||||||
| Valve size | DN10 | DN15 | DN25 | |||||||||
| Voltage supply | 230 / 400 V (optional 115 V) | |||||||||||
| Protection class | IP55 | |||||||||||
| Insulation class | F | |||||||||||
| Material | PP, PVC, PVDF, 1.4571 | |||||||||||
| Weight* | PP | kg | 15 | 16 | 20 | 23.5 | ||||||
| PVC | 15 | 16 | 20 | 23.5 | ||||||||
| PVDF | 15 | 16 | 20 | 23.5 | ||||||||
| Stainless steel (1.4571) | 20 | 23 | 31 | 45.5 | ||||||||
| Permitted ambient temperature | °C | 5 – 45 (5 – 40 with PVC parts) | ||||||||||
| Permitted media temperature | °C | 80 (with PVC parts 35, with PP parts 60) | ||||||||||
*) Weights can vary slightly depending on the motors; these figures represent average values.
Subject to technical changes
BA: Operation instruction
PI: Product information