ValmaMorell148
Материал из campus.mephi.ru
When replacing a fountain pump or selecting a new 1, 1st there are some key terms to keep in mind:
"Head": This is the maximum vertical lift of the pump. For example, a 6' head implies the pump is rated to pump water up to 6 feet high. Note, however, that at 6 feet the pump would be offering extremely little water, with gallons per hour about zero. So if you need to have to pump, say, 200 gph at 72", you will most likely require about a 300-600 gallon per hour pump to do the job.
"GPH" : Gallons per hour, usually rated at diverse heights
"GPM" : Gallons per minute, normally rated at distinct heights
"Pump Curve" : The quantity of water volume "curved" according to different heights. A 500 gallon per hour pump, for instance, may pump 500 gallons per hour at " lift, 350 gallons per hour at 24" of lift, and so forth. When purchasing a pump for the very first time or when looking for a replacement pump, it is crucial that you know how numerous gallons per hour you want to pump and at what height (head).
Water Volume The total volume that you will be pumping is controlled by a few factors. One factor is the size of the pump, as covered above. But you also must think about how wide your tubing will be. Tubing is measured in two techniques: inside diameter (i.d.) and outdoors diameter (o.d.). Really skinny i.d. tubing will greatly lessen water flow. Many clients are shocked when they uncover that, right after hooking up their 500 gallon per hour pump to 1/2" inside diameter tubing, they are only obtaining what they consider a trickle.
We had an engineer do some calculations for us to illustrate the dilemma. Using a 300 gph pump with 1/2" tubing is going to restrict your flow to 253 gallons per hour. By growing the pump to 450 gallons per hour, but nevertheless utilizing 1/two" tubing, you will enhance volume only slightly, to 264 gallons per hour! The lesson is this: When purchasing a pump, locate out what size of tubing is supposed to go with it. One more problem is running the tubing also far. Extended lengths of tubing generate resistance. If your pump calls for 1/2" i.d. tubing, for instance, but you are running the tubing twenty feet from the pump, it is
a excellent notion to use 3/4" tubing instead so as not to reduce down as well considerably on flow.
How considerably water do I want? What size of pump? This question is answered in element by whether you want a "trickle" or a roar. When you purchase a fountain, you will usually locate a advised flow. For waterfalls, use this as a rule of thumb: for each inch of stream width or waterfall "sheet," you will need to deliver 100 gallons per hour at the height you happen to be pumping. So if you are building a 12" wide waterfall that is 3 feet tall, you require to buy a pump that will be pumping 1200 gallons per hour at three feet of height. For small ponds, anytime achievable, it is a very good idea to recirculate the water as soon as
an hour, much more usually if achievable. Hence, if your pond is 500 gallons, try to buy
a pump that will recirculate water at a rate of 500 gallons per hour. For truly
large ponds, this is not necessary and is far also high-priced. --------------------------- Bloco de notas
Não é possível encontrar "csv"
OK
---------------------------
Bloco de notas
Não é possível encontrar "csv"
OK
---------------------------
Bloco de notas
Não é possível encontrar "csv"
OK
