The Watson-Marlow peristaltic pump with the Sci 323U/D model is an adjustable peristaltic pump that can achieve delivery volumes of 0.81 to 2000 ml per minute. The pump head is model 313DW / 033. 3451. 000, designed for a hose with a wall thickness of 1.6 mm. This pump is particularly suitable for dosing tasks in the medium delivery volume range. The pump consists of a drive and a pump head and allows the delivery rate to be adjusted by adjusting the speed and the inner hose diameter. For operation, it is equipped with a membrane keyboard and offers an LCD display for display. The housing is chemical resistant. The technical data includes:. - Pump head material: Nylatron. - Delivery volumes depending on the hose diameter:. - Ø 1.6 mm: 0.81 to 108 ml/min. - Ø 3.2 mm: 3 to 400 ml/min. - Ø 4.8 mm: 6.6 to 880 ml/min. - Ø 6.4 mm: 11 to 1440 ml/min. - Ø 8.0 mm: 15 to 2000 ml/min. - Maximum delivery pressure: 2 bar. - Power consumption: 100 W. - Voltage: 230V, 50Hz. - Protection class: IP 31. - Speed: 3 to 400 revolutions per minute. - Number of rollers in the pump head: 3. - Operating temperature: 4°C to 40°C. The delivery volumes (ml/min) for the hose wall thickness of 1.6 mm depending on the inner diameter are as follows:. - Inner diameter 0.5 mm: 112. - Inner diameter 0.8 mm: 13. - Inner diameter 1.6 mm: 14. - Inner diameter 3.2 mm: 16. - Inner diameter 4.8 mm: 25. - Inner diameter 6.4 mm: 17. - Inner diameter 8.0 mm: 18. For the pump head 313 with three rollers, the delivery volumes are:. - Ø 0.09 mm: 12 ml/min. - Ø 0.21 mm: 28 ml/min. - Ø 0.81 mm: 110 ml/min. - Ø 3.0 mm: 400 ml/min. - Ø 6.6 mm: 880 ml/min. - Ø 11.0 mm: 1440 ml/min. - Ø 15.0 mm: 2000 ml/min Labprocure is responsible for this device.