Questions tagged [fluid-pump]
For questions about electronics used with fluid pumps.
102
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PHD ULTRA syringe pump communicate with Arduino
I have a PHD ULTRA syringe pump from Harvard Apparatus. I want to establish communication between an Arduino and the syringe pump. The company provided me with a Python code, but Arduino does not ...
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1
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Will a 0.37kW 0.5HP 1PH 180-240V 2.8A water pump work with a TP-Link P110 16A smart plug? [closed]
The water pump has mentioned these thing on it's label:
0.37kW
0.5HP
1PH
180-240v
2.8A
And the manual of TP-Link says only 1/6 HP Motor is supported.
Specifications:
Voltage: 220-230V~ 50/60Hz
Max ...
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1
answer
220
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Float Switch and relay for pump
I have a pump that's only required for the occasional use with excess water, - https://www.al-ko.net.nz/alko-product-range/sub-6500-classic - and this is only required when the water is 50-70mm deep. ...
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71
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Voltage stabilizer or voltage protection device for irrigation setup [closed]
I have an irrigation setup in a rural area with voltage fluctuations.
The irrigation setup consists of a Hunter X2 Controller powering a pump start relay which in turn runs a 1.5 HP submersible motor ...
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1
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1
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79
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Is it possible to control speed of a 3 pin PC liquid cooling pump with one winding using PWM?
Back story:
I have liquid cooled PC where I can’t control fans and pump from motherboard headers (thanks HP). I decided to use DC/DC converters to power fans and pump. It is working, but since pump ...
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80
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Use the same battery to power esp32, 3.3 volt relay and 3.3 volt water pump?
I have some basic questions about a waterpump circuit I'm making.
Can i use the same battery to power esp32, 3.3 volt relay and 3.3 volt water pump as in the following schematic? do i need a diode ...
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1
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2
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118
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Diagnosing submersible 24 VDC pump on SMPS
I connected a submersible 24 VDC, 1.2A water pump to a constant voltage 24 VDC 100W LED Power Supply (SMPS). As my user name shows, I have many of these LED power supplies in store. That's why I used ...
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70
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Sensitive electrical flow switch for 1-1/4" plastic pipe
As part of a water-treatment system without a holding tank, a chlorine pump is installed on a 1-1/4" water LDPE pipe. To test for flow, a section of the pipe was replaced with 2" PVC, and in ...
- 121
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3
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122
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Unable to start and run 12 V DC pump, only jolts
I have a 12V 19 watt DC water pump (800LPH), A 12 V DC step down converter, and two Dewalt batteries.
One at 18 V 5 Ah, other 18-54 V 9 Ah.
I've connected pump to step down to battery correctly, but ...
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234
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Controlling Flow/Pressure of a Diaphragm Pump
I searched for similar questions; especially this post, but I don't know if the answers apply to my question as well.
I am a software guy and have almost no clue about electrical engineering. I am as ...
- 101
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88
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How can I model this water pump?
Consider this object.
How can I model it in order to simulate with a circuit simulator driving this object with a MOSFET?
I'm especially worried about inductive properties in order to avoid voltage ...
- 893
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2
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79
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Does a control panel that will start/stop two pumps require its own circuit protection?
Does a control panel used to start/stop two pumps require circuit protection for the main 208V feeder lines if those lines are already protected at the main panel in a separate room?
The main panel ...
- 11
3
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1
answer
410
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What power supply should I use for this 12 V peristaltic pump?
I have a project I am doing where I have to control three simple peristaltic pumps with an Arduino. Originally I started with cheap $13 6 V pumps powered with 9 V batteries which only worked for a day,...
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188
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Why is my borewell pump drawing 6kW when it's rated 3kW? [closed]
For the past 6 months there has been increase in my electricity bill. The reason is that the maximum demand is higher (6kW) than the sanctioned maximum demand (3kW.)
We have a 3HP 3 phase borewell ...
- 119
3
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1
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123
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What type of an induction motor is used in a single-phase non-inverter household refrigerator?
There are many pictures with the 2-phase non-symmetrical (start winding and main winding) on the internet in a single-phase non-inverter household refrigerator.
What type of squirrel cage induction ...
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4
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5
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2k
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How to power a 24 VAC pump with 24 VDC?
I want to power a 24 VAC vibration pump (48 W 50/60 Hz, often used in coffee machines), and control it with a microcontroller. I've got an existing system that is powered with 24 VDC. A standard DC-DC ...
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2
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183
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Can you run two motors of different hp off the same VFD independently?
Can you use the same VFD to run two motors of different hp (20 hp and 10 hp) if all other parameters are the same? The motors will never run at the same time, it will be one or the other, and the ...
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3
votes
2
answers
155
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Preventing mains spikes from cheap water pump
I bought a pack of add-ons for my DIY CNC that has a water cooled spindle.
One of the items was the water pump. But when I switch on the pump, a fairly substantial crack can be heard in any speakers ...
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2
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1
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245
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Pump undervoltage protection
I'm planning on building a solar powered pond filter for my koi pond and my setup goes like solar panel to charge controller to inverter module to pump. I have tested the setup and it works when the ...
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2
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Do pumps and motors also need flyback diodes?
So my question is simple, we know that its good practice to use flyback diodes in solenoid valves and relays, but do pumps and motors also need them as they also have coils?
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70
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LED not turning on in automatic pump shut off circuit (Proteus)
I am unable to get the LED to turn on when the logic state (at 25%) is at 1 to shut off the pump.
in
The Proteus simulation.
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110
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Power control of centrifugal pump via PWM or voltage
I would like to change the flux rate of a centrifugal pump like these ones here:
Wilo centrifugal pump
Homa centrifugal pump
I can only think of PWM or voltage control from 0-230V or using trial and ...
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1
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2k
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Can I run 460VAC 60Hz 3 phase rated motors on 380V 50Hz mains?
I have an upcoming project that is going to China which will be using 380Vl volt 50Hz. Will motors that I've used before which are rated for 460V 60Hz, be able to operate at 380V 50Hz?
I've read ...
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1
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47
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Trying to determine kWh used to run a pump on hydronic boiler
Pump is BA Armstrong CV 60, HP 1/12 , RPM 1725, VOLTS 115, AMPS 2.3 SERIAL # 7802
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1
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175
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"Hardware shut off" pumps when water leak is detected
I did a lot of research but cannot find a clear solution to my problem - maybe that's also because of a lack of understanding proposed solutions, of course. After all I read, I feel confident enough ...
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2
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1
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312
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Have I gotten this attiny13 based MOSFET circuit correctly?
I am bit new to electrical engineering and I was hoping to get a sanity check on my reasoning! I want to design a low-powered (battery-driven) plant watering PCB.
It uses an attiny13 as the switch for ...
1
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2
answers
93
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Need values for capacitors and resistors [closed]
I have experience reading schematics for making guitar pedals, but never designing a project from scratch.
I have a 12V 4A battery powering a cooling element (12V TEC1-12710 Thermoelectric Cooler ...
- 11
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1
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293
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Power-on Timer Delay for Induction Motor
I'm designing a circuit for a power-on delay that powers a centrifugal water pump. When the power is switched on, it needs to be delayed by 60s before starting up the electric pump. The power source ...
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746
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What does the HP/kW power rating on the specification sticker of a pump mean?
Pumps have power given as kW/HP on the specification sticker and also efficiency is mentioned on them. Is this power the electrical input power or mechanical output power? For example in this case is ...
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2
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3
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273
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Relay Switching On and Off Rapidly During High Current Draw [closed]
I am building a solar pool heater using a solar panel to power bilge pumps that push water through irrigation pipes. When there's enough sun to get the panels to its typical voltage (~21.6V 6.16A) but ...
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1
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1k
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ESP32 + PC817 count 5v pump powered on
Before starting i'm a novice :)
I'm tring to count each time a 5v pump is powered on.
I build my sketch with a PC817.
The reading works but each time i put the ESP32 in deep sleep mode it triggered as ...
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223
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Problem in 5v pump
I connected the pump to tip122 darlington transistor to control it via serial port.
but the pump doesn't work. instead , it makes sound.
how can i make the pump work
the circuit of the tip122 :
the ...
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56
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0
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1
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43
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How to reach a required autonomy with a li-po battery? [closed]
CONTEXT : I'm working on a project consisting of making an underwater robot "fish" for an aquarium . and it is mandatory to get at least 8 hours of autonomy. I'm responsible of the ...
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1
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1k
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Will 14.4 volts from my solar charge controller damage my 12v equipment?
My charge controller is set to recharge my battery bank and begin a float charge at 14.4 volts.
If I use some of my 12 volt components during the day while the batteries are charging, will this high ...
3
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1
answer
427
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Quiescent current of 12v brushless water pump
I couldn't find the datasheet to my Quioran QR50E water pump and I want to estimate if I can run an arduino and 4 of those on a battery for longer than a month.
I don't know the quiescent current of ...
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1
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666
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Designing a Peristaltic Pump Driver with IRFZ44n Mosfet
I'm making a peristaltic pump controlled by an arduino. The pump is controlled by a PWM from arduino to a IRFZ44N Mosfet. I have added a pulldown resistor for the gate, and also diode and capacitor ...
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1
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2k
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Is it safe to use a 120V/60Hz rated espresso machine on a 100V/50Hz grid? [closed]
I'm new here and my question is a bit complicated with multiple factors, so please allow me to explain it.
I live in Eastern Japan where 100V/50Hz is standard. I intend to use a very expensive 1800W ...
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2
answers
512
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Soft starter for centrifugal pump [closed]
Do most manufactured centrifugal pumps come equipped with soft starters, and is it a good idea to invest in one if they're going to be frequently switched on/off?
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0
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307
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Starter for Sump Pump
I'm trying to determine proper circuitry for starting a sump pump, but am unsure of what components I need. Originally was going to just use a relay, but have read suggestions for contactor+overload ...
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2
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1
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51
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Relays for switching circuilation pumps
I have a board populated with Omron relays (G5Q-1A4-EU DC5) and I want to use them to switch circulation pumps (https://imp-pumps.com/pumps/ghn/). Is the previous relay appropriate to be used with ...
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54
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Degradation in performance of pump
I recently purchased a Dc pump rated 3 to 6v~ On connectig it with a 9v battery(cheap one) it works well for 5~~minutes continuous after which its performance degrades to a level of it where it's ...
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3
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353
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Solar powered mini water pump: how to turn it on/off automatically
I have acquired a mini water pump (5V 1.0A) and several solar panels (each: 5V 200mA). What I try to achieve is to pump water from a container above a vertical hydroponic system and let it flow down ...
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624
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Auto off water pump only when tank is full
The water pump installed at my residence is operated on and off manually through a conventional switch wall socket.
Now, I want the pump to be automatically switched off whenever the tank is 90 ...
0
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0
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26
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Converting 110V AC to 12V DC [duplicate]
I am currently moving to a location for work that has a 110v electrical connection but no water connection. I was attempting to use an RV water pump in order to create a plumbing system for my sink ...
1
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1
answer
537
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HCPL-3700 voltage detector opto influencing DUT due to low input impedance. Pump float and controller
I am trying to monitor the state of a float in a septic tank using the HCPL-3700. The float is connected to two screw terminals on the controller panel. This float is normally-open with 120VAC ...
1
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1
answer
335
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Running AC solenoid vibration pump with DC voltage
Ulka e series solenoid vibration pump works with Ac voltage directly connected to main power.
They are rated at 220, 110, 24 voltage 50-60 Hz.
These pumps use an internal diode for removing half cycle ...
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1k
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Driving a small water pump with a microcontroller and a transistor
I have bought some water pumps for a project I am currently working on, the thing is that I have never used water pumps before, I am sure that pumps are inductive loads, but I am unable to know the ...
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229
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Fridge stoped working properly [closed]
a Friend have a problem with the fridge&freezer - it does not produce coldness anymore.
Company : AEG Electrolux
Model : S 75348KG5
Typ : CBFF340 EL
We would like to know why, and what we can ...
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2
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174
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Pump power factor OK on mains, but low on generator
I'm working on a submerged pump application, running on 415V three-phase. I don't know for sure, but I believe the pumps are only a few KW.
The customer is saying that the pumps run fine when the ...
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