Comparison of a Grundfos 3” SQ pump to a conventional 4” submersible
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- Опубліковано 19 лис 2024
- In this video, Senior Technical Sales Manager, Alan Bixler compares the Grundfos 3" SQ pump to a conventional 4" submersible pump to help you determine which one is the better option for your water pumping needs.
First, Alan discusses the differences in design and performance between the two types of pumps. He highlights the unique features of the Grundfos 3" SQ pump, including its compact size, high efficiency, and low noise level. He also explores the advantages of a conventional 4" submersible pump, such as its durability and ability to handle high flow rates.
Next, Alan conducts a side-by-side test of the Grundfos 3" SQ pump and a typical 4" submersible pump to compare their flow rates, pressure, and energy consumption. He provides detailed results and analysis to help you make an informed decision.
Finally, Alan concludes by summarizing his findings and providing recommendations based on different use cases and preferences.
If you're in the market for a water pump and want to learn more about the differences between a Grundfos 3" SQ pump and a conventional 4" submersible pump, this video is for you.
Don't forget to like, comment, and subscribe for more informative content. You can also learn more by visiting the Grundfos website here, product-select...
#submersiblepump #submersiblewaterpump #submersible #grundfos - Наука та технологія
Hello, I recently bought my first SQ pump to install for one of my clients and I am very excited. The majority of installations down here (panama) are with Franklin products so I had to import this one myself.
The one issue I am slightly worried about is the integrated voltage protection. Our service area has very frequent voltage swings/surges. Does the internal protection hold up to multiple swings a day?
Pumptecs are normally installed down here for the Franklin products but even their distributor says the bad voltage can wear them down quicker than would usually be the case.
Trying to find the best long term solution for my clients! Thanks!
Ps: Is there any chance of becoming an official dealer for Grundfos down here? If this installation goes well, I’m going to likely make the switch to just using the SQ and would like to not have to order from the US each time.
Hello! Would you please fill this form? gfos.ly/6058R9ZZq So we can contact you for more information. Thanks!
How to check grundfos sq model with ac current please guide me
Use a clamp-on ammeter, which is an inexpensive tool available everywhere.
I am looking for 15SQ10-250. Grundfos documentation specifies this as 1HP, FL = 8.4Apms, but on online, products selection, specification is showing Rated power - P2 = 2.08HP, Power (P2) required by pump = 2.8HP, Rated current = 11.2Amps. Can you explain why the numbers are different. Is this 1HP or 2HP pump?
Hi Fred
Grundfos documentation de-rates the 2HP motor on 15SQ10-250 as 1HP, giving it 1HP nomenclature, with a 1HP pump end mounted to it. This allows the 1HP pump to fit the product family position. We can always de-rate a motor/product, but we are still required to publish the actual specifications (HP, Volts, Amps) online, on the motor nameplate, etc.
Therefore, 15SQ10-250 is called a 1HP with a pumping performance of 1HP. This allows for a smaller pump end on a bigger motor, which makes less workload on the motor, less actual amp draw (not Max Amp), and less motor heat. All of which provide for a longer-life product.
Hope this helps!
Samreen
I have a 255’ well with 152’ static water level and 20gpm. What model would be the best? I think the sqflex is what I need as it will be off grid
Hi,
Considering the initial sizing of 152’ depth to water pumping 20 GPM while off-grid sized to SQFlex 22SQF-220 Part Number 99465259. Advantages for this pump selection also handles the additional foot of head from friction loss from length of pipe run plus fittings, additional lift to highest demand (shower head) and covers future dropping of depth to water of 152’ could drop to 200’ let’s say. Therefore, the 22SQF-220 will serve you well off-grid solar panel power source, even if your measurements change some. Thank you for asking. 😉
Best regards,
Steph
can these pumps hold up to 1-2 million gallons a year? Not having problems with that with goulds 4" standard pumps but I want to switch to offgrid. the regular 3 wire grid tie pumps are lasting for over 10 years easily.
Hi,
We have taken many steps to increase the lifespan of the product both in the pump end, which includes the use of floating impellers each with their own tungsten carbide/ceramic bearings to ensure high wear resistance to sand for a long product life, and the motor, which includes the use of tungsten carbide/ceramic bearings and thrust bearings protecting against down thrust which allow product lifetime equal to conventional AC motors. These combined with the dry run protection, high efficiency pump and motor, protection against up-thrust, soft start, over-voltage and under-voltage protection, over-temperature protection and the high starting torque are some features and benefits which will also help to increase the life and operation of the pump. We do not have a definite lifespan that the pumps will last as the largest variable to the lifespan of a pump is going to be the environment that it is operating within. We hope this helps. :)
Thank you,
Steph
Im looking at the 5sq5-180, it comes in a 115v option from what ive read. This is a 400ft well going to a sistern, not a pressure tank. Will it work? Im replacing a dead 6sqf-3.
Hi @tinbenderbear4631,
Yes, the 5SQ05-180 is available in 115V AC and due to the permanent magnet motor along with it’s built in motor protections may be the right fit for your application, well aquafers are not all the same. We recommend reaching out to a Grundfos WaterPRO dealer in your area to ensure this is the correct size and it’s installed up to code. You can find the map here :)
gfos.ly/6051nEX0B
Thank you,
Steph
Hello! Would you reccomend installing a 3' grundfos pump in a 6' well? Will it overheat because water speed is low around the motor?
❤ I want to now sp 30_6 the price
Hi Pa,
Thank you for your interest in Grundfos. Unfortunately as we do not sell directly we cannot give out prices. One of our dealers will however be able to help you with gfos.ly/6057upL9z can find a list of local dealers here: - gfos.ly/6051upL9P
Thank you.
Best regards, Steph
Hello Dan!
Yes, we recommend installing 3” Grundfos pumps in a 6” well as long as a Torque Arrestor is used.
Yes, it will overheat due to slower water flow past the motor if not sleeved.
Two problems you will run into with very low-cost solutions:
1)A 3” pump in a 6” well will allow the pump to swing/hit the well casing during starting torque.
Install a torque Arrestor on the outside of the discharge pipe just a couple of feet above the pump.
The closer you push the two mounting clamps together, the more the center bows out.
You want the center of the Torque Arrestor to drag (friction fit) a little as you send the pump down the well.
That way, when the pump starts and torques, the Torque Arrestor is right there, and the pump does not swing at all.
Please see the snapshot below as a guide to finding a Torque Arrestor to steady a 3” pump in a 6” well. (There are several suppliers)
2)To solve the slow-flow overheating issue, simply collect a piece of 4” Sch. 40 PVC Drain Pipe 8” longer than the total length of the 3” pump and motor, a 4” Sch. 40 drain pipe solid cap, a small can of PVC Cement, and drill/tool/bit/ability to drill a hole in the center of the cap a little bigger then the outside diameter of the discharge pipe and wire.
Please review the actual published instructions for proper sleeving.
The following steps are to guide the understanding of mounting a Flow Sleeve.
Please seek actual instructions to notice if something is overlooked here. Plus, the instructions differ.
Step 1: Have the wire and torque arrestor secured to the discharge pipe.
Step 2: Drill a hole in the PVC Cap a little larger than the outside of the discharge pipe and wire.
Step 3: Slide the PVC Cap up and over the discharge pipe and wire, big opening facing down to the pump.
Step 4: Finish proper connections of the discharge pipe to the pump and wire to the motor. To the point, the pump is ready to send down the well.
Step 5: Slide 4” PVC already cut to about 8” longer than the pump and motor, up and over the pump, and cement weld (glue) the PVC Cap to the PVC pipe.
Step 6: When fully/properly ready to send the pump down the well, holding the pipe vertically should have the torque arrestor clamped and spread wide about 2’ above the PVC sleeve. The PVC Sleeve Cap should be sitting (hung up) on top of the 3” pump holding the PVC pipe and cannot fall off. The PVC pipe should be about 8” longer than the bottom of the motor. So, the water has to enter the bottom of the PVC pipe to go up the pipe past the motor on its way to the intake. Cooling the motor greatly.
We hope this helps and if you have any other questions please feel free to reach out :)
Best regards,
Steph
Excellent advice, Grundfos!!!
My 780' well produces 45 GPM
Static water level at 70'
Puting out 15-20 gallons @360'
Is the 22SQ/SQE15/220 the right pump for me?
Hi,
We are not seeing SQ/SQE15/220 as the right pump.
To pump 15-20 gallons @ 360’ needs more like a 4” SP16S200-18 if staying closer to 15 Gallon per minute.
And, SP16S300-24 if staying closer to, or must achieve, 20 gallons per minute.
We hope this helps :)
Thank you,
Steph
Thanks you for the Water Pump with Solar panels Video . we needs so many Pumps in different country's. But i like to visit you on the Grundfos. Because I am living in Viborg . Please let me know if you have a time then I can come visit you . Please let me know. Send me a Emil.I want to book a Grundfos Pump with solar panels. For sample .I no how good Grundfos' or .
Hi,
That is amazing! Please visit us at gfos.ly/60599am7f so we cam connect you with someone in your region. :)
All the best!
Steph