What do the numbers on a pump mean?
The settings refer to the speed in which hot water is circulated around the system and distributed to radiators and faucets. The best speed setting to use is the lowest speed at which the system works without any problems. The lower the setting, the more energy efficient the pump will be.
What does 15 50 mean on a pump?
The difference between 15 50 and 15 60 on a pump is the “maximum head/vertical lift,” or the pump’s capability to pump heating water upwards. 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.
How do I choose a circulation pump?
Flow rate: Calculate your desired flow rate by multiplying the total volume by the time in which you want to move the liquid. For example, for a 500-gallon pond that needs full circulation once an hour, you would want to select a pump with a minimum rated flow rate of 500 GPH (gallon per hour).
How do I size a circulating pump?
1 GPM = 10,000 BTU/hr, meaning that for every 10,000 BTU’s of heat load the circulator must output a 1 gallon per minute flow. Assuming that system calls for 100,000 BTU/hr, a circulator pump should have a minimum 10 Gallons Per Minute flow rate at a given pressure drop.
What speed should I set my central heating pump to?
By varying the settings, you can identify the most appropriate speed for your pump. Theoretically, the optimal speed settings in a central heating pump should ensure that there is 11 to 12-degree variance in the temperature of the water that is leaving the boiler and the water that is being returned from the radiators.
Are Grundfos pumps any good?
4.0 out of 5 stars Unique features, high price, short life. Grundfos makes a unique product line with their MQ series. These pumps work well and perform tasks that you can’t easily do with other pumps. The down side is that their quality is spotty and you can’t easily buy repair parts.
What setting should my Grundfos pump be?
The pump should be set to the proportional pressure setting where the differential pressure adjusts proportionally to the required flow in the system.
How far will a Taco 007 pump?
Technical Specifications: Flow Range: 0 – 23 GPM; Head Range: 0 – 10 Feet; Minimum Fluid Temperature: 40˚F (4˚C);
What does head range mean?
This is the vertical distance that you are able to pump the liquid. Say your pump is rated for a maximum head of 100 feet, this does not mean that you are restricted to100 feet of pipe, you could use 300 feet, so long as the final discharge point is not higher than 100 feet above the liquid being pumped.
What is head range on a circulator pump?
The head range is the number of feet a pump can raise or lower a column of water at atmospheric pressure. • In a closed-loop hydronic system, the circulator pump can be cast iron, because the water used is de-oxygenated to prevent rusting.
How do you calculate head pressure?
Divide the depth in inches by 27.71-inches/psi, or the depth in feet by 2.31-feet/psi which are the English unit conversion factors. The result is the water head pressure expressed in psi.
How long do circulating pumps last?
As long as your central heating system is correctly installed and properly maintained, you can expect the pump to last for a long time. Typically, they keep going for well over 10 years, with some lasting 20 years or more.
