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Questions tagged [fluid-pump]

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0
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1answer
34 views

How do you set up a VFD to run a motor at 2 different speeds?

I'm already familiar with the concept of altering the frequency to change the speed of the motor. So in this scenario, I'm looking into running a pump at 40Hz (high speed) and 23Hz (low speed). This ...
2
votes
1answer
33 views

Replace 12V 2A centrifugal pump with 12V 1.4A peristaltic pump

I bought a liquid filling machine -http://a.co/d/8FMFWIU. There is a centrifugal pump model Dp 521 2Amps 12Volt. I want to replace this pump with a peristaltic pump. The pump is controller by a micro ...
1
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2answers
44 views

Controlling large AC machinery using small DC power

I am currently working on a water treatment machine where I need to have control over a pump and several solenoid valves. In order to do that, I am provided with a pre made controller bought from ...
-1
votes
1answer
32 views

Upto how much voltage can be multiplexed by 4051B 8X1 IC?

I want to control a 9 volt pump with my arduino, and my arduino is giving around 2V as output through its gio pins ( I don't know exactly the reason why, maybe cause I have lots of other sensors ...
2
votes
2answers
78 views

Solar powered water pump - need some advice

I am completely new to elecrical engineering, but I want to give it a shot and am really interested in learning more details about how all of it works. I've had an advanced physics course in high ...
0
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3answers
68 views

Starter circuit for solar module driven pump motor

I have a 24 V 100 W solar panel and a 24 V DC 50 W pump, which has a resistance of 2 Ω while at 0 rpm. The solar panel is directly connected to the pump motor. The problem is: While the solar panel ...
0
votes
1answer
181 views

Powering a water pump with nodemcu

I want to use a nodemcu to water my plants. I connected a pump with a 2N2222 transistor (I know i should add a diode and a pull down on the gate). The pump is DSL370 and when it is off i measure 4.4V ...
0
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0answers
62 views

HL-52S for 1.05kW pool heater and 0.55kW pump

I'd like to create a circuit that can measure my water temperature and based on that turn on or off my pool pump and heater. The heater is a "ECO 5kW" - where it actually uses 1.05kW of power. The ...
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0answers
73 views

Waterproof PCB pump driving stage

We are having issues with a small 12V DC pump which is used in a number of test systems in the field. The pump is powered by a standard DC power supply and integrates a small PCB driving stage, with ...
0
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2answers
103 views

What connector will fit this?

Does anyone perhaps know what type of connector this is please? It's 8-pin but not a normal DIN connector. It's the remote control port for a peristaltic pump. I've asked the manufacturer for the ...
0
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2answers
38 views

Power 12v Pump with two PSUs that may or may not both be on

Not an electrical engineer at all, however i will be in need of something like this. I have two systems that will share a liquid cooling system. They both run off of their own respective PSU's. I want ...
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0answers
64 views

AKW Digipump. Replacing a Flow rate sensor with an analogue speed controller - on/off switch

I have an AKW Digipump 4 thats designed for pumping shower waste where gravity cant be used. It operates using a flow rate sensor on the feed supply to the shower but Im hoping I can convert this to ...
1
vote
1answer
110 views

Two flyback diodes in parallel for higher current?

I'm trying to use a water pump that says 12V and 1200mA. I read somewhere that I need to put a flyback diode to handle current when it turns off, but looking around I only have 1N4001 diodes, which ...
-4
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1answer
62 views

Electronic urn pumps [closed]

How exactly do electronic auto dispensers/pumps, such as this one, work? What are the mechanics behind it? (I'd appreciate any information provided, even if it's a comment.)
7
votes
1answer
157 views

Troubleshooting Strange Circuit Behaviour…Missing Diode?

I've built this circuit to control a submersible pump with a PIR sensor. The circuit works as expected (the PIR sensor activates the mosfet, turning the pump on) but only after about 30 seconds from ...
0
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2answers
1k views

Controlling a 5W 12V DC water pump

I have just bought this pump to circulate coolant through an experiment. I would like to control the pump output as it doesn't have any control on it. It is being powered from a 12V 0.5A power ...
0
votes
2answers
681 views

Arduino Nano and water pump (2n2222a switch) [duplicate]

Hi there, I've created the circuit following this thread. The arduino D9 pin get 5v and I measured with the tester a VBE of 0,82v, which is right for the transistor saturation. Unfortunately the pump ...
0
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0answers
91 views

How to use an Arduino in order to control fluids in measured amounts?

I am new to the Arduino Platform and the Electronics world. I am currently working on a project which requires accurate fluid controls. By Fluid Control, I mean, pumping a fluid, eg. water, in certain ...
0
votes
1answer
46 views

Solenoid valve backup

I am designing a Scissor lifter and I am operating my hydraulics using solenoid valve but I want my system to be ready for every possibility so what should be the backup system if my solenoid valve ...
1
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2answers
1k views

12V pump on 24V supply

I've got a small 12VDC pump that I used on an old project. I now want to use the pump on a different project and make use of a 24VDC transformer I have (because the project also makes use of a 24VDC ...
0
votes
1answer
298 views

Controlling ulka pump using relay

I am working on a project that uses a Ulka water pump rated at about 0.5A. I will ultimately want to control the pump using an Arduino, however before I attempt that to start with I am just using a ...
0
votes
1answer
84 views

Powering several 12 V @ 1A Vacuum Pumps

I'd like to power several 12 V @ 1A vacuum pumps (and control them via Arduino). For a few pumps, I assume a 12 V at 3.5 A adaptor would suffice? Also, I'm currently using a TIP31C transistor (...
0
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3answers
2k views

Control a water pump with a relay board

I have a water pump rated 650 W and the attached relay board. Is it ok to modify a power socket to use one relay to control the phase and one to control the neutral wire? Thank you!
0
votes
3answers
874 views

How to protect reed switches in dual float switch pump control circuit?

I'm trying to make a dual-float switch control for a pump. I want the pump to come on when the water is at the high level, stay on until water falls to the low level, then turn off and stay off until ...
0
votes
1answer
430 views

Attiny85 water plant with mini water pump

I`m new to electrical engineering, so it's probably a newbie problem. I'm using a wall power supply(5V-2A) to power the DC Motor and the Attiny85. A C1 470uF to make the power more stable. I don't ...
0
votes
3answers
671 views

Can I run a liquid-pump motor below its specified operating voltage range?

The liquid-pump/motor is a miniature one from ebay with its operating voltage rated as "6-12V". Even at 6V (the minimum of that specified range), it's pumping liquid too fast for my requirement. ...
1
vote
1answer
81 views

Is over-volting a motor just a little bit likely to affect its lifespan?

So, I have a DC marine water pump. It's typically rated for "12v" lead acid batteries, so it should be designed for around 13.5v. I am going to be pwming it and monitoring the current, with a base ...
2
votes
1answer
1k views

What type of relay should i use to control a water pump (with a raspberry pi)?

I've got a straightforward question: I'm wanting to control a pump (120V AC) with my Pi. I tried using a Cyrdom SSR (info) but I now realize it is for resistive loads only. Is there a relay rated ...
2
votes
2answers
546 views

Drop the current of a couple of peristaltic pumps for a microscope use

I have a system to drive two peristaltic pumps (labelled 12V, that draw 300mA) in a microscope in the lab in order to refresh the media of my cells for long term experiments. In the current setting I'...
1
vote
3answers
633 views

Water level sensors for water pump

I have a "pompe a eau" inside a well of 40 meters length, the water pump doesn't stop if there is no more water in the well and that causes damage to it. So I tought of using water level sensors just ...
0
votes
1answer
130 views

will this circuit work as intented? [closed]

My question is will the following circuit work as an automatic pump control. sorry for the terrible design. if i connect the analogue pressure sensor in the primary connection in the circuit after a ...
0
votes
1answer
912 views

Relay Solution for Controlling Pumps with Arduino

I'm working on a hydroponics project that requires me to run 10 pumps for 15 seconds every 2 minutes. I was able to set this system up by running a relay board off of an Arduino, but the relays were ...
-2
votes
2answers
94 views

Using one circuit's voltage range to control the range of another

MAF sensor = MAss airflow sensor, measures the amount of air going in the engine, the engine is "mapped" to translate a MAF voltage into airflow (grams of air per second) I'm trying to make a circuit ...
0
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2answers
1k views

5v piezo (micropump) with arduino

edit -added pin 9 as output in setup and now HIGH/LOW code works. -When the pump is set to LOW it turns on, when it goes HIGH it is disabled. So when I plug the arduino in, by default the pump turns ...
0
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1answer
238 views

Setting up piezo pump with arduino

I'm trying to control a 12V piezo pump (with an inbuilt driver) and I'm a bit unsure how to use it safely. I'm using an Arduino Uno to control it, with an N-channel MOSFET rated at 60V 30A (with a 10K ...
0
votes
2answers
225 views

Does this DC pump and similar ones output at different rates or at one constant pressure/air flow rate?

https://www.youtube.com/watch?v=nLLq4CB9EkU [3 minute video demonstrating a small diaphragm pump driven by a brush DC motor.] I would like to use a DC diaphragm pump similar to this, small in size ...
2
votes
2answers
2k views

Differences Between Buck-Converter and Linear Current Booster

Thinking through a design that interfaces a solar panel to a 12V diaphragm pump, and considering the interfacing options. I've come across the term "Linear Current Booster", and wanted to explore ...
1
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2answers
375 views

Solar panels for a DC solar pool pump

Ok - total newbie question here. I'm trying to work out the size or number of solar panels required to run a DC pump for use as a solar heating system for a swimming pool. I've located what looks ...
0
votes
1answer
525 views

3.3v sensor to switch water pump

I have a PIR sensor that when triggered, gives out a 3.3V signal. I'm trying to use that to switch on a 5V water pump, and I'm assuming I will use a transistor. The sensor only puts out 10mA, while ...
0
votes
1answer
2k views

Why solenoid valve when a liquid pump can be electronically controlled?

In some quick research online, I'm often seeing configurations where a liquid pump is used in tandem with a solenoid valve on the same liquid path. So, let's say I have a very simple scenario: a ...
2
votes
1answer
729 views

Capacitor bank with variable speed motor

I have a set of three pumps (power ~100 kW) with variable speed AC motors and I would like to know the best option(s) to reduce the cost of reactive energy. For instance, would it make sense to ...
1
vote
1answer
883 views

Surge Protection for pump relay

I have a 24 volt relay that starts a 220 volt pump motor for a sprinkler system. The relay and pump are about 800 yards from the 24 volt signal generator. I have had four relays go bad and fail. I ...
1
vote
1answer
1k views

24 Hr A Day Powered Aquatic Pump

I am looking to install a DC 12V 6W submersible aquatic pool pump for use in a small scale hydroponic setup. The location of the beds will be too far away from mains electrical, and I would like to ...
-1
votes
1answer
117 views

Can an enclosed Pelton Turbine be used as a pump? [closed]

Can an enclosed Pelton Turbine be used as a pump, perhaps through the centrifugal forces created in a enclosed Pelton Turbine when it rotates at speed? The water striking out of the buckets of a ...
0
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2answers
1k views

20v solar panel powering two 12v fans and a 6v pump (swamp cooler for burning man)

Building a solar swamp cooler for burning man, how can I use a 20v 0.8a (in full sun) 15watt solar panel to power TWO 12v 0.4a fans, AND a 6v 0.1a water pump? One of the fans and the water pump have ...
0
votes
1answer
3k views

What type of pumps are most energy efficient to lift 200 liters of water over 15 feet?

Trying to design a rain-water harvesting system for our home. A long-term goal for me is to go "off-grid", or reduce dependency on grid-power, as much as possible. My need is to evacuate about 200 ...
3
votes
1answer
201 views

Pump control - Uni or Bi polar stepper motor

I am working on a robot that includes several annular gear pumps. We are using the MZR 2521, manual: (please see section 5.5) http://www.micropump.com/support_documents/manual_mzr-xx21.pdf product ...
1
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3answers
1k views

Any DC-powered, low flow-rate, inexpensive water pumps?

Looking for small water pump, which can pump up water from a container, kept at ground-level to another container, placed 10 feet above ground. It should ideally be DC powered, and be able to transfer ...