Questions tagged [solenoid-valve]

A solenoid valve is an electromechanically operated valve, which is controlled by an electric current through a solenoid.

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Controlling a solenoid valve with a relay and a 18650 battery

I have a 12 V 18 W (1.5 A) solenoid valve that I want to control valve with an RF relay. I use a Sony 18650 li-on battery to power this system. A 1S 10 A BMS unit is protecting the battery. Even ...
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2 answers
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Diode failure for bistable valve

I have a refrigeration system where the flow of refrigerant is controlled by a bistable valve. If the voltage for the coil is positive the valve is in position 1 and if the voltage to the coil is ...
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2 votes
1 answer
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Can we use a 230 V/50 Hz solenoid on a 240 V/60 Hz supply?

My question is the inverse of this one: Can we use 220V/60Hz Solenoid on 220V/50Hz supply? The thing is that I bought a European espresso machine rated 1450-1600 W, 220-240V, 50/60 Hz and I am ...
2 votes
2 answers
67 views

Can regular ON/OFF solenoid valves be turned into a proportional valve just by changing the control electronics?

I was wondering whether it was possible to make a proportional valve out of a regular ON/OFF solenoid valve by characterizing the current vs the flow rate and then driving the solenoid using a ...
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NodeMCU v3 with TIP120 and DC booster

I have already been through plenty of topics to try to integrate three TIP120s with a DC booster in order to operate two solenoids valves (non-latching NC ones). I think I am getting close but there ...
-1 votes
1 answer
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How is this solenoid going to last for months? [closed]

After buying a water control unit for my garden I got curious of how it worked, so I picked it apart and had a look before assembling it again :-). It uses 2x1.5V AA Alkaline batteries to output 3V (...
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2 answers
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Controlling a 12V solenoid lock with 3.3V - IRLZ44N

I would like to drive a solenoid lock from a 3.3 V MCU with a N-channel IRLZ44N MOSFET. Here are the specs and diagram: Solenoid Lock: 12 V – 2 A (K02-12V DC 2A Electric Magnetic) Below is the diagram ...
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1 answer
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Current consumption by a solenoid valve

I want to calculate the voltage drop in a circuit loop consisting of a solenoid valve. The valve power consumption is 16W. The valve datasheet mentions minimum voltage to operate as 18V. I have a 24V ...
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4 answers
81 views

How to connect a bistable valve?

I need to control a bi-stable valve: Here is the typical wiring provided for such 3 wires type valve: But I don't want to continue to feed it when actually closed or opened which is normaly ...
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1 answer
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Can I use a 50m network cable to power two 24VAC solenoid valves?

I have purchased two 24V AC solenoid valves to control the irrigation in my greenhouse. The plan is to install the two valves inside the greenhouse and power them using relays in the garage which is ...
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-2 votes
1 answer
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Solenoid valve triggering [closed]

Will a solenoid valve if kept in on condition (triggered) all day long cause it to burn itself, due to the heat it produces or for any other reason? Rating - (24V DC, 2A, normally closed, 1 inch, ...
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1 answer
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Drain current spikes when switching on MOSFET with LT1160 driver

I'm designing a control circuit meant to drive a proportional valve. I'm trying to simulate the driver and mosfet side of things in LTspice using the LT1160 half bridge driver and two readily ...
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212 views

Is it a good idea to drive 24VAC solenoid valves with triacs?

I want to build irrigation system for my garden. Most solenoid valves for that purpose work at 24VAC. I'm wondering if I could use triacs to drive them. They are cheap and small (in comparison with ...
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3 answers
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Adding nFET-driven reverse polarity protection to a switching regulator input

I'd like to protect my board mounted switching regulator's input from reverse polarity events without having to modify the existing run of boards we had created and populated. The primary regulator ...
1 vote
4 answers
204 views

Why do I have a sudden current peak when PWMing a valve?

I am driving a proportional solenoid valve with PWM from an MCU as follows: The voltage of the MCU is 3.3 V. The gain of the amplifier is set to 20 V/V. Because the valve consumes 170 mA when fully ...
2 votes
2 answers
267 views

How to avoid noise when controlling a proportional solenoid valve with PWM?

I need to control 3 different proportional solenoid valves. The manufacturer advises to use a PWM frequency between 600 and 1000 Hz. I have tried it at around 800 Hz and it works. The problem is that ...
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1 answer
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Can I control a solenoid valve below its nominal voltage?

I need to control the following 2 ways direct solenoid valve ("Series 252 D01") : https://www.emerson.com/documents/automation/catalog-series-252-dental-manifolds-asco-en-6779448.pdf It is ...
1 vote
1 answer
50 views

Time relay and solenoid valve

For a project, I need to control a normally closed solenoid valve and be able to apply a current on the valve only for a set amount of time before closing it again, and only once (so no cycle). I ...
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1 vote
1 answer
187 views

How are proportional solenoid valves generally controlled?

I am working on a project in which I have to control 3 different proportional solenoid valves. I have never worked with solenoid valves before, at first I thought proportional valves could be ...
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Can anyone identify this component? B08 55L

This is on a gas solenoid control circuit. Glorified on and off switch, the only significant other bit in the circuit is a NAND switch dual Schmidt trigger IC. The right leg is connected to ground, ...
1 vote
2 answers
1k views

Can I power a 12V solenoid valve with a 24V supply [closed]

I am trying to control a 12V solenoid valve with a 24V supply. Will it work and what are the potential dangers? Here is the part: https://www.amazon.de/-/en/solenoid-variants-pneumatic-electric-...
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Controlling a FESTO solenoid valve with Raspberry Pi - Trigger Issues

I'm currently working on a project for university, where I want to control a Festo solenoid valve (MHJ10, https://www.festo.com/cat/en-us_us/data/doc_enus/PDF/US/MHJ_ENUS.PDF) via a Raspberry Pi GPIO. ...
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How to test a pressure control solenoid valve?

I have tested the resistance of the solenoid valve (variable force solenoid) and it was 3.6 ohm, however, when I connected it to a square 9V battery, the plunger didn't move. Does that mean it's ...
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2 votes
1 answer
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How do I prevent all valves to activate when a single curcuit activates?

I'm setting up a watering system in my greenhouse. This is a 12v DC system. I have three timers, each controling its own solenoid valve + a shared water pump. How do I prevent current from going to ...
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1 vote
1 answer
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SSR with AC valve doesn't turn off

I don't have much experience with solid state relays. I am going to describe my problem. I have a SMC AC valve that I want to control with a Crydom SSR and an Arduino UNO. When I send the signal to ...
1 vote
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240 views

Solenoid driver schematic

Here is a circuit I'm working on. Its purpose is to accept a PWM signal (PID control) and drive a small solenoid valve that consumes ~200 mA at 12V. I have some questions I would love to get a second ...
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Solenoid valve on 24V powered with 12V?

I am having the follow solenoid valves : 2W-320-32, which is marked to work on 24V, but seems like they open on 12V as well, so I am wondering : What would happen in long terms if I am powering ...
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996 views

Simple ESP32 driver for solenoid valve rated 24V/2A?

( As an extension to the question asked here ESP32 driving Solenoid requiring 2A/24V DC with IRF520? , I am adding this question with the idea to help more peoples with the results, since seems like ...
2 votes
1 answer
557 views

ESP32 driving Solenoid requiring 2A/24V DC with IRF520?

I am trying to design a circuit, which will drive my home valves which is on 24V and by specifications must supply 2A ( but this is quite suspicious, and probably it is requiring much lower current, ...
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Replacing fried relay for solenoid valve

I have a sink faucet that operates with a capacitive sensor, if I touch anywhere on the sink it turns the water on, or off. After around a minute it automatically turns off if left on. The sensor ...
1 vote
2 answers
260 views

Flyback diode placement for solenoid valve simulation circuit

I am working on a project where I want to fake the presence of a solenoid valve in a control unit on a car so that the control unit does not give an error message. The output of the control unit is a ...
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Controlling 32 solenoid valves from a single BeagleBone Black

I am trying to control 32 solenoid valves from a single BeagleBone Black. My EE skills are not up to par for this task, but I am learning. In this system, at most one solenoid will be active at any ...
7 votes
2 answers
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How close should the diode be to a solenoid?

When using a diode to deal with the back EMF from a solenoid, common advice is to put the diode as close to the solenoid as possible. Indeed, in pinball machines, I've seen diodes soldered directly ...
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1 answer
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is a water inlet valve water resistive by design? [closed]

I cleaned a leaky washing machine water inlet valve with wd-40, pressurized water, pressrized air, drain opener(caustic soda+ sodium chloride), vinegar and alcohol and gave it a massage gun session ...
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1 answer
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How to select the right details for activating solenoid valve

I'm working on a smart watering system as a home project. I have a water output in my balcony (a tap) and I want to control the water flow using an Arduino Uno and a solenoid valve. I still don't have ...
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4 answers
598 views

How to design a solenoid.?

I want to design a DC solenoid valve that could compress a spring under 5 kg of load. All I know is the voltage (12V), load (5kg), the current range (15-20), and the cross-sectional area of the ...
1 vote
4 answers
178 views

What device can I use to parallel 4 dry contact signals from 4 timer relays

What device can I use to multiplex 4 dry contact signals from 4 timer relays to actuate an isolation valve? In other words, any of the signals from the timer relay should be able to actuate the ...
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Acoustic noise from EMI filter

I am using this proportional valve driving circuit: The valve is 24V, 2W, driven with a 2kHz PWM. I hear an acoustic noise coming from the EMI-Filters L49, L77. I know that the noise is coming from ...
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1 vote
1 answer
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Controlling valve actuators with PWM signal

I want to control ME-4340 Syncube Non Spring Return Modulating Valve Actuator - 0/2-10Vdc ME-4340 with an STM32. The timer configurated as a PWM generator of the STM32L073RZTx gives 3.3 V at 100% so I ...
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Lowest power circuit to control low current 240v circuit

I'm trying to control 6 normally-closed 230v valves using a raspberry pi. These valves draw little current when energised (1W) but do have a maximum inrush current of 550mA. Normally this would be ...
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1 answer
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Wiring 24V Soleniod valve

I'm having an issue with connecting the industrial pneumatic valve with 2 coils to relays. EDIT: I have connected it like this in the scheme below. Coils are connected to NO port on the relay, ...
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Control flow rate of a solenoid valve using PWM

I'm hoping to control the flow of chemical by shutting a solenoid valve periodically over short intervals, similar to this video: https://youtu.be/O49mqn33vBI?t=6 Does anyone know if conventional ...
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Appropriate solenoid valve flyback diode

I control a 24V solenoid valve via PWM controlled MOSFET. I have a 1N4007 diode parallel to the solenoid. If I put a 2.2uF electrolytic capacitor directly next to the solenoid it works properly, ...
1 vote
1 answer
445 views

Is a flyback diode necessary with a relay module for operating a Solenoid valve?

Assuming I have a relay module (I'm not sure about its features) that is connected to a 12 V DC solenoid valve and should be operated by a microcontroller. Do I need a flyback diode connected with ...
2 votes
1 answer
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Converting an electrical schematic into a physical panel layout

I'm an undergrad researching physics, my job has been to make this electrical schematic, can I get some help figuring out the physical layout? I've basically self-taught myself enough of solidworks ...
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Valve driver specifications

I need to control a NSF/ODE JM R1 2/2 valve. Here the datasheet (Gofile link). I cannot understand the electrical requirements. It says: Power: 5W DC Running power: 10 VA AC Startup power: 15 VA AC ...
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Selfmade hand sanitizer? [closed]

I want to build a hand sanitizer on my own. Like these, you can buy for enormous prices. I need a proximity sensor (like the ones, which use infrared to check if someone is there). And I need a small (...
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What battery do I use to power solenoid?

I’m quite new to electrical work and I’m trying to open and close a solenoid valve with a battery. I have bought these tiny 23a 12 V batteries. The solenoid says it needs 12 V dc. I have no idea why ...
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1 answer
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How to power solenoid valve?

I'm pretty new to electrical work in general and was wondering how I would open and close a solenoid valve. It says on the specifications that it needs 12 VDC. Do I just take a 12 volt battery and put ...
0 votes
3 answers
328 views

Relays turning on randomly when 24VAC sprinkler solenoid valve is shut off

tl;dr: I'm having a problem with 8-relay module boards that control sprinkler solenoid valves. When 24VAC is present, sometimes turning a relay off causes other relays to randomly turn on. Long ...
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