How do you size a Grundfos pump?
How to do pump sizing by application
- Step 1: Define your application requirements. Enter your duty point in the pump sizing software and choose to size by application.
- Step 2: Evaluate and compare compliant pumps. Evaluate and compare pumps in the results list.
- Step 3: Choose your desired product.
What is P1 and P2 in Grundfos?
P1 is the total induced power to the pump system. P2 is the power coming from the motor (shaft effect). P2 is the nominal power of the motor.
What does 15 50 mean on a Grundfos pump?
15 50 means a maximum head of 5 metres, whilst the 15 60 translates to 6 metres. In simple terms, this means that 15 60 is a bit more powerful. With the Grundfos UPS2 15 50/60, you can replace pumps with a maximum head of 5 or 6 metres.
What is P2 in pump?
Input Power – P1: Input power is the total electrical power supplied to the pump system. Output Power – P2: Output power is the mechanical power at the shaft of the pump. This is the power that is given as the “Rated Power” of the pump.
What is the difference between P1 and P2 on pump?
The difference between the power induced to the pump and the hydraulic power indicates the efficiency of the pump. P1 is the total induced power to the pump system. P2 is the power coming from the motor (shaft effect).
How long do Grundfos Pumps last?
The pump of your central heating system can last a long time if it is properly installed and maintained. Typically, they keep going for at least 10 years.
How do you read a pump flow chart?
The Pump curve shows the Flowrate range on the horizontal scale. As standard the Flowrate is from zero flow to 20% past the Best Efficiency Flow. The first point on the curve at zero flow is referred to as “Shut Off” and the last point at maximum flow is “Run Out”.
How can you tell the age of a Grundfos pump?
Grundfos box products contain a date code or production code on the name plate of our pumps and Motors. Date code (ex: 1708 = 2017, 8th week) + 2 years (1908) + 26 additional weeks (1934) The warranty period would expire on the 34th week of 2019.
What is HP of a pump?
Horsepower is a unit of power equal to 550 foot pounds per second or 746 watts. Water horsepower is the minimum power required for a pump to move water throughout a given system, or the power that the pump would require if it were 100 percent efficient.
What is P1 kw?
HP = 1.341 * KW Electrical Power Consumed by Motor. The electrical input power to the electric motor is also the power consumed by the motor: For single phase AC motors, the power input or consumed (P1) is given by: Where: P1 = power consumed in KW.
What does P2 P1 mean?
P1 is referring to the first “minor” grading period. P2 would be the second minor period, and so on. Similarly, T1 is referring to the first major grading period.
What setting should my Grundfos pump be?
proportional pressure setting
The pump should be set to the proportional pressure setting where the differential pressure adjusts proportionally to the required flow in the system.