What are the different types of pump curves?

Pump curves fall into several categories and can represent different aspects of the pump’s performance. The most common types of pump curves include: pump family selection, the manufacturer’s published curve, certified pump curve and system curve.

How do you find the pump curve?

How to get a pump curve quickly

  1. Step 1: Search for your product. To find the pump performance curve you need, simply type the pump name into the “Product” search field and select the product and model you want.
  2. Step 2: Review the information.
  3. Step 3: Print pump curve and additional data.

How does Grundfos pump work?

The central heating pump takes hot water in through its inlet valve and pumps it through the pipes and radiators, which in turn heat the rooms. This also forces the cooled water through the system and back to the boiler where it can be reheated.

What are pump curves?

A pump performance curve indicates how a pump will perform in regards to pressure head and flow. A curve is defined for a specific operating speed (rpm) and a specific inlet/outlet diameter.

What are the 5 curves that can be found on a pump curve?

Curves typically include performance metrics based on pressure, flow, horsepower, impeller trim, and Net Positive Suction Head Required (NPSHr).

How do you set a Grundfos pump?

Grundfos Pump Settings

  1. Press the button to switch to the setting view.
  2. Release the button for more than 2 seconds.
  3. Press the button for more than 2 seconds and the pump switches to “setting selection”.
  4. During a period of 10 seconds, press shortly on the button and the pump switches to the next setting.

What is Grundfos circulation pump?

Grundfos circulator pumps are designed for best-in-class efficiency with low maintenance. Compared to conventional circulators, they cut energy consumption by up to 80 %, while delivering noise-free performance. Here you can find the right circulator pump for your heating, cooling and hot water recirculation needs.

How are pump curves generated?

Pump curves can be generated by reading measurements of pressure, NPSH, power, efficiency and others, while the pump is operating at different flow conditions. These results are then plotted against the flow rate to generate the pump characteristic curves.

What is a good pump curve?

Some curves will also mark the Best Efficiency Point (B.E.P.). This is the point on a pump’s performance curve that corresponds to the highest efficiency and is usually between 80-85% of the shutoff head.