- Fluid and producer. A trade name or a data sheet tells us more than a generic description.
- Viscosity at pumping temperature. Viscosity at 20 °C is useless for a fluid pumped at 160 °C — and the reverse. Give us both the minimum temperature and the viscosity there.
- Flow rate. In l/min, m³/h or bbl/h, with the minimum and maximum if you need to vary it.
- Discharge pressure. Or line length, diameter and height difference, and we calculate it.
- Suction. Tank type, suction line length and diameter, liquid level. On thick fluids this is the most important data point.
- Solids and fillers. Type, percentage and particle size, if any.
- Heating available. Steam, thermal oil, hot water — or electricity only.
- Power supply and area. Voltage, 50 or 60 Hz, and whether the area is classified (ATEX).
50 Hz or 60 Hz
The flows in our tables are given at 450, 950 and 1450 rpm, typical speeds on 50 Hz networks. On 60 Hz networks — Saudi Arabia, the Philippines, Brazil, Mexico, Colombia, Peru, Ecuador and others — the same motor turns about 20% faster, and the pump delivers more. With viscous fluids that is not always welcome: we size the pump on your actual speed.
Frequently asked questions
What if I do not know the viscosity?
Send the product name and producer, or a data sheet. For many products we already have experience; otherwise we tell you how to measure it.