Ravel hiteks manufactures series of peristaltic pumps for low volume application and high volume industrial applications. These programmable peristaltic pumps [model rh- p100] cover the flow range from 0.12 ml/hr to 60 lit/hr in 1 mm to 8 mm id with the wall thickness of 1 or 1.5 mm. They are ideally suited for laboratory applications. Microcontroller-based control systems ensure precise fluid delivery throughout with digital control of dispensing time intervals, auto shut off after desired number of batches/volume and direct entry of flow rate, tube size, batch volume, interval time and total volume with flow calibration, priming. The pumping head contains anodised aluminium block with spring loaded twin rollers. Rollers are made up of ss-316 or carbon filled nylon. The pumps can operate continuously up to 1,5 kg/cm. These pumps find wide applications in r&d and teaching institutions, chromatography, chemical, food processing, pharmaceutical and various other industries where the fluids are to be transferred without cross contaminations or to handle corrosive liquids.