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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How can I implement current control for proportional valves?
I am currently working on operating a proportional valve for airflow, but I am facing some challenges. Initially, I attempted to control it using a DRV8871 motor driver with PWM frequencies of 500 Hz, ...
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Eliminating a weird pulse when switching a valve actuator using a low-side MOSFET
The circuit is connected as drawn below:
MOSFET IC = MAX14919A
Valve actuator = MHE2-MS1H-3/2G-M7-K
Schottky Diode = SS16HL-TP
The pulse happens when the low-side MOSFET opens (disconnecting the ...
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How to vary output current by maintaining constant output voltage? [closed]
I want to control a proportional valve by keeping its voltage constant while varying its output current. Is there any way to achieve this
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Guide in designing circuit with Solenoid Valve 12VDC interfaced with Arduino Nano
I am not of an expert and just beginning in electronics, I have tried to design this circuit. The schematic is for the 12VDC-4.5W solenoid valve to act like a gate valve to pass and stop the flow of ...
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Guide in explaining the circuit design with Solenoid Valve 24VDC interfaced with Arduino Nano
I am not of an expert and just beginning in electronics, I have tried to design this circuit. The schematic is for the 24VDC-3W solenoid valve which I'll use to control a pneumatic cylinder (required ...
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Why continuous solenoid buzz?
I'd like to drive a 24 VAC solenoid (an Irritrol series 700 sprinkler valve solenoid) with the secondary voltage from a plugin transformer (a Vitek model VT-24VAC/20).
Checking this on the bench, I ...
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Diode in parallel with AC solenoid valve
I have a circuit I'm trying to design to fire both 120VAC and 24VDC solenoid valves. We have relays that work on 12vdc for the coil, and can switch AC or DC. the valves are normally around 30W. I ...
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What kind of solenoid is this?
My electrical water timer broke, and interested to see its inside I opened up and found this (image) solenoid. I'm not sure what type it is.
The whole thing runs on 2xAA (2x1.5V) batteries, but it ...
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Using Arduino to gate +5 and -5 supplies, simultaneously
I have some valves (Walfront36atn8w5ph) I need to control. They use pulses of +5V and -5V, with up to 1A current (specified, not personally measured), to change state (no holding current/voltage, it's ...
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Driving a solenoid via a digital output
What are the effects of the pull-down resistor (33K) when the solenoid-valve enters its turn-off phase? Will it prevent the solenoid-valve from ever discharging because current would flow from ground ...
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How can the magnetic field produced by the shading ring of a solenoid valve be 90° out of phase compared to the coil magnetic field?
I am trying to understand how the shading ring in solenoid valves is able to produce a 90° out phase magnetic field compared to the coil's magnetic field. The logic seems different from a shaded pole ...
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Reducing a constant voltage source from 24 V to 12 V [closed]
I currently have a constant voltage source powering a PLC which outputs 24 V DC. I need to drop the voltage from 24 V to 12 V. Is there a way to do this without buying a $100+ DC-DC converter? The ...
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Solenoid valve drivers
I'm developing a driver with a NMOS to control the solenoide valve.
The power supply V_uC is the signal from the board STM32.
As yoz can see from the schematic, I placed R2 to protect the STM32 pin. ...
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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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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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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 ...
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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 ...
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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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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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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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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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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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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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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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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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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 ...
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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 ...
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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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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 ...
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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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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, ...
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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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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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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 ...
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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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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 ...
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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 ...
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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 ...
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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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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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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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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 ...
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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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