When you're dealing with a deep well jet140 feet situation I have discovered parallel pumps are useless due too those pressure canceling high end suction requirements...
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Sounds like parallel might be what I need for my waterbox build. I plan on using a quad fan radiator (maybe two for passive cooling) and I thought I'd need to run D5 pumps in series since I'll be running a motherboard block with RAM, GPU and chipset (I've thought about adding the PSU to the loop as well, hence why I may run two of those huge radiators) So based on that, do you think parallel D5 pumps would be able to move all that fluid or should I run series for more head pressure?
Hi, if the suction length, aka "suction lift" = vertical distance between the water source and the pump's inlet. It represents the maximum height the pump can effectively draw water from. Then, the suction length is primarily influenced by factors such as the pump design, atmospheric pressure, friction losses, and the properties of the fluid being pumped. While arranging pumps in series can increase the total head and improve the overall performance of the system, it does not directly impact the suction length or the ability to draw water from a particular depth. The individual pumps in the series will still have their own limitations and suction capabilities.
I have a pump that has two pumps driven by the same 120VAC motor. Can I hook one to the other like the output of one to the input of the other and get more pressure?
Is maximum suction depth increased by putting pumps in series or parallel? If so, which is better for increasing suction depth for shallow well applications? Once the well is primed and held with a check valve, does the suction depth of a pump matter? I'm not an engineer, I just sometimes have to deal with sprinklers & wells.
Thanks for the concept..this theory is same as electrocity to get watt from voltage and amperage..have you try to combine it pararel and than series it?..i think it can get more pressure and water flow
I get the theory but doubt to implement, my situation is from ground down to well is 9m then 1/2inch pipe 40m to pump, of course it cant suck, so if i parallel 1 or 2 more pump can it work? fyi i cant place the pump near the well, i have spesific problem with that. thanks
What is the problem? you typically need parallel pumps when you do not have enough power in 1 of them, so you split the stream into two materials, i.e. two pipes that smaller pumps can handle
I came here because I want to install 3 sprinklers for my kitchen garden. I have one pump and 3 sprinklers. I want to keep the pressure for each sprinkler as high as possible and evenly rated. So my conclusion is to put them in series instead of parallel. Am I correct?
Well... It is much more complex than that.. If they have the same size of inlet/outlets, then the first will get always higher pressure than the last one, you would need to adapt the size. In this specific case, you should have a 3-way piping system, so it divides water flow rate and pressure evenly.
Sir, open system mein chilled water different quantities chahiye isilye kabhi min 5hp, kabhi7.5hp, kabhi aur 5 hp aur add karke 17.5 hp qty discharge full load chahiye. pararallel mein header size kitna dena chahiye sir? please reply sir. each pump d= 50 mm and s = 65 mm hai. please.
@@ChemicalEngineeringGuy 16 rooms 10 tons cooling load each room, cooling load varies from 10 to 160 tons throughout week. so i want to pump needed qty of chw water. therefore diff size pumps parallel connected. advise header size please.
Hi CEGuy, interesting lesson but ... do I want pressure or flow? I'm using pump output to drive an underwater vehicle (swimming pool bottom cleaner). It works by pumping the circulation flow of the pool pump through a hose attached to the top of the cleaner that gets directed out of an end of the cleaner as thrust. I want to give the cleaner more umph because it sometimes gets stuck on the drain plug and I'm thinking a little more umph and it will ride over it. So ... what do I need for umph, pressure or flow?! :)
Actual real world flow and pressure will not be ideal p1 + p2 , or flow1 + flow2. Follow the system curve, because you forgot the increased friction of each added pump?
When you're dealing with a deep well jet140 feet situation I have discovered parallel pumps are useless due too those pressure canceling high end suction requirements...
Sounds like parallel might be what I need for my waterbox build.
I plan on using a quad fan radiator (maybe two for passive cooling) and I thought I'd need to run D5 pumps in series since I'll be running a motherboard block with RAM, GPU and chipset (I've thought about adding the PSU to the loop as well, hence why I may run two of those huge radiators)
So based on that, do you think parallel D5 pumps would be able to move all that fluid or should I run series for more head pressure?
Hello brother, can i know when pump in series will also increase suction length?
I hope you can help me
Hi, if the suction length, aka "suction lift" = vertical distance between the water source and the pump's inlet.
It represents the maximum height the pump can effectively draw water from. Then, the suction length is primarily influenced by factors such as the pump design, atmospheric pressure, friction losses, and the properties of the fluid being pumped.
While arranging pumps in series can increase the total head and improve the overall performance of the system, it does not directly impact the suction length or the ability to draw water from a particular depth. The individual pumps in the series will still have their own limitations and suction capabilities.
I have a pump that has two pumps driven by the same 120VAC motor. Can I hook one to the other like the output of one to the input of the other and get more pressure?
does the same concept is applied to hydraulic accumulators in series or parallel?
Is maximum suction depth increased by putting pumps in series or parallel? If so, which is better for increasing suction depth for shallow well applications? Once the well is primed and held with a check valve, does the suction depth of a pump matter? I'm not an engineer, I just sometimes have to deal with sprinklers & wells.
Thanks for the concept..this theory is same as electrocity to get watt from voltage and amperage..have you try to combine it pararel and than series it?..i think it can get more pressure and water flow
that is true, as stated, more power is given by series, more flow is given by parallel
So in series what happens to the pressure of the second pump if it exceeds the psi rating? 2 pumps 10 GPM at 100 psi
Well, definetively ensure to work within the pressure range... if don't... you'll simply break your 2nd pump
I get the theory but doubt to implement, my situation is from ground down to well is 9m then 1/2inch pipe 40m to pump, of course it cant suck, so if i parallel 1 or 2 more pump can it work? fyi i cant place the pump near the well, i have spesific problem with that. thanks
What is the problem? you typically need parallel pumps when you do not have enough power in 1 of them, so you split the stream into two materials, i.e. two pipes that smaller pumps can handle
what about increasing the pressure of the input, then do pumps in series work?
I have one pump and 3 filters. The pressure switch is 45 psi. The pump is cycling. Will adding a another pump in series fix this?
what do you want to do exactly? Increase pressure or increase flow rate?
I came here because I want to install 3 sprinklers for my kitchen garden.
I have one pump and 3 sprinklers. I want to keep the pressure for each sprinkler as high as possible and evenly rated.
So my conclusion is to put them in series instead of parallel. Am I correct?
Well... It is much more complex than that.. If they have the same size of inlet/outlets, then the first will get always higher pressure than the last one, you would need to adapt the size. In this specific case, you should have a 3-way piping system, so it divides water flow rate and pressure evenly.
@@ChemicalEngineeringGuy many thanks for your advice! 🛠️ I meant parallel instread of series. So indeed the 3 way piping system is the way to go.
Sir, open system mein chilled water different quantities chahiye isilye kabhi min 5hp, kabhi7.5hp, kabhi aur 5 hp aur add karke 17.5 hp qty discharge full load chahiye. pararallel mein header size kitna dena chahiye sir? please reply sir. each pump d= 50 mm and s = 65 mm hai. please.
Srry, didnt got the message, can you re-formulate
@@ChemicalEngineeringGuy 16 rooms 10 tons cooling load each room, cooling load varies from 10 to 160 tons throughout week. so i want to pump needed qty of chw water. therefore diff size pumps parallel connected. advise header size please.
Hi CEGuy, interesting lesson but ... do I want pressure or flow? I'm using pump output to drive an underwater vehicle (swimming pool bottom cleaner). It works by pumping the circulation flow of the pool pump through a hose attached to the top of the cleaner that gets directed out of an end of the cleaner as thrust. I want to give the cleaner more umph because it sometimes gets stuck on the drain plug and I'm thinking a little more umph and it will ride over it. So ... what do I need for umph, pressure or flow?! :)
You know its explained well when even a dummy dumb dumb like me understads it 😊
thanks a lot! Im happy you understood!
Thank you!
You're welcome! I hope it helped!
thanks
+humaid alkhateri thank you for taking the time!
Actual real world flow and pressure will not be ideal p1 + p2 , or flow1 + flow2. Follow the system curve, because you forgot the increased friction of each added pump?
that is correct, but that is the way we model it; eventually you will model friction losses and, of course, the change in flow rates
Thank you
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OMG electronics!
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