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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42 views

Ramp up and ramp down for solenoid valve [closed]

I'm trying to activate a solenoid with a linear ramp in voltage of 0 - 12 VDC in 200 ms. The load current of solenoid valve is 1 amp. An RC series circuit helps achieve a soft start but in an ...
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46 views

What size capacitor do I need to reliably close a 1" US Solid motorized ball valve?

I am making a water feature that will involve a stream fed by the basin of a fountain with a pump at the end sending water back into the fountain. To control the water flow rate through the stream and ...
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57 views

Button press on espresso machine suddenly activates wrong solenoid

I am trying my hand at fixing a La Cimbali M28 Select, which is a professional espresso machine. The remaining issue is that, when I press the 'hot water dispenser button' it does not dispense hot ...
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21 views

How do I pick a suitable SMD mosfet to control a 24V pneumatic valve with PIC32?

I need to control a valve (https://datasheet.octopart.com/VXZ242FGA-SMC-datasheet-110849414.pdf) of which I do not know its power consumption and drawn current. I don't have the part yet and usually ...
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37 views

Trigger solenoid valve based on resistance

I have a KUS SSS Water level sensor for my RV that I would like to have trigger a NO 12v solenoid valve to turn off when my tank has reached full (and ideally also sound a little piezo). The sensor ...
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30 views

How to use solenoid valve with vacuum pump

I am a software developer working on small pick and place machine. I have bought mini vacuum pump and one solenoid valve. I want to control vacuum pump suction through solenoid so that when from ...
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2answers
71 views

Powering a solenoid valve with a relay and no external power source

I have a solenoid valve (12VDC, 540mA) that I would like to control with a 12VDC relay (15A SPDT). Is it possible to power the solenoid without an external power source seperate from the one powering ...
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40 views

How does Solenoid works? How do I calculate its output power? [duplicate]

Here is a solenoid valve. It is a normally closed, which is mean, it is normally closed the valve. Vice versa, there is also normally open, which is mean, it is normally open the valve until it ...
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22 views

Can I use solid state output and relay output with the same components?

So I have a OTB1E0DM9LP Schinder Electric I/O distributed module and I want use it'output to control some 24v electro-valve's and some 24V contactors. The module have 2 Solid-state outputs of 24V 0....
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57 views

Why is this solenoid valve consuming so much power?

The circuit below drivers a pump and a valve, the pump works fine, the valve consumes much more current than I'd expect. The valve is rated 2W at 12V (600mA) i'm more like 15W. The PUMP_DRIVE signal ...
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103 views

3-way solenoid valve gets hot

I have this Bosch 3-way valve that I use in a hydronic system. If I run 12V to energize the valve, it gets very HOT! Is that normal with such valves?
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368 views

How to trigger a latch solenoid valve from an Arduino?

I received a sample latching solenoid valve: https://www.alibaba.com/product-detail/Top-Quality-Dc-5V-Latching-Solenoid_60415603817.html I want to control it using an Arduino Pro Mini, running a 5V. ...
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1answer
75 views

Mixing two fluids dynamically using valves and sensors [closed]

I'm new to the field of electrical and electronics design... trying to build a hobby project for home decoration. I want to mix two colored fluids with proportion of each liquid decided by a user ...
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45 views

How to ontrol a 12v dc water valve with battery powered Arduino?

I just want to open/close a valve when the soil moisture sensor reports a pre-determined moisture level, using an Arduino. The main issue I'm facing is that most valves operate at 12/24 VDC and I'm ...
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3answers
91 views

Arduino nano resetting after solenoid valve fires

I'm trying to control small, plastic 12V solenoid valves with an Arduino nano. I have an Arduino nano hooked up to a Sainsmart 4-Channel 5V Relay Module, and finally connected to the solenoid valves, ...
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1answer
93 views

12 V Solenoid Valve Not Opening

I am a chemical engineering student. I need to control a valve and pump system using an Arduino Uno. I was testing out my 12V DC solenoid valve with a variable DC power supply, and noticed that the ...
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1answer
62 views

How to use sensor to measure amount of ink used for each print job?

Problem: I have done a bit of research and noticed a lack of this feature in the official software by the major inkjet printer manufacturers to measure and record the amount of ink used in each print ...
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3answers
630 views

The role of solenoid's wire diameter?

I'm not an expert in the electromagnetic field and need to design a solenoid actuator with 1 kg force approx. I am wondering if I change the wire diameter of the coil, what happens in solenoid's ...
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64 views

How to model a Electronic Proportional Control Valve

I am using a VSO LowPro Proportional control Valve (https://www.parker.com/Literature/Precision%20Fluidics/Miniature%20Proportional%20Valves/VSO%20LowPro.pdf) to regulate pressure into a closed ...
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72 views

LowPro proportional valve drive circuit clarification

Am new with amplifiers when trying to use them as a current controller so is just after some help in understanding the circuit. I am designing a circuit that will use a LowPro Proportional Valve ...
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1answer
59 views

Basic Solenoid Question

I have a super simple question about solenoids. If I wired this, a 120v solenoid valve, to a 3 prong male plug would this cheap chinese humidity controller be able to control it? My assumption is ...
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88 views

Power off detection circuit to close opened latching solenoid valve

The image above is referred from this SO link. My use case is the following: A latching solenoid valve, which would be run using 4 AA batteries (6V) Solenoid Valve (9 Ohm) operates at 6V under 40ms ...
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1answer
105 views

Can we apply a longer pulse to latching solenoid than its rating?

I've a 6-12V dc latching solenoid, which needs 60ms of pulse to set it to on/off. I'll be using a microcontroller to generate the pulse. I've following questions. What if the generated pulse is ...
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3answers
976 views

In which way proportional valves are controlled solely by current?

Proportional valves are drived by current because we need a steady force and since resistance changes with temperature if they were driven by voltage this force wouldn't be steady. Ok, this is what I ...
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4answers
1k views

Could someone explain dither signal?

I know that regarding proportional valves the dither signal is a signal superimposed on PWM command that actually moves the valve. It improves the response of the valve because the coefficient of ...
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1answer
90 views

switching air valve with Arduino Micro

Good people of stack. I am a programmer, but new to building my own electronics. I need to switch (3) 12v solenoid valves from the Arduino Micro. I see lots of chatter online, much that confused me ...
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2answers
59 views

Faucet valve control

I'm a mechanical engineer with very few knowledge in electrical so your help is very appreciated. I'm doing a small project which require to automatically the fill and empty a sink. How can I ...
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2answers
64 views

How to proportion hydraulic flow using potentiometer and MOSFET

I am working on solving a problem that we generally deal with in a mechanical fashion. We have a hydraulic system with a dumb controller and a dumb valve stack. We can change the valve stack solenoids ...
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2k views

Wiring DIN connector with 3 wire DC solenoid valve

im buying [smc VQZ 212 5YZ1 C6] 3 port solenoid valve with 2 possible position(let say A and B). This solenoid work with 24VDC and have 3 pin/ wire. There is No 1, No 2 and GND pin. I will never ...
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1answer
367 views

Noninverting optocoupler with a pulldown resistor

I am using a power MOSFET to switch a solenoid valve. The MOSFET is driven with a optocoupler (LTV-847) to isolate the 12V required to switch the valve from the 3.3V used by the microcontroller. ...
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1answer
155 views

Auxiliary contacts on contactor to power solenoid valve

I'm just trying to introduce cold water in to industrial shredder. Connected cold water supply to machine. That's not good because when I forget to turn off water it will overflow. I have not seen ...
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2answers
385 views

24 VAC sprinkler valve using DC power

I am creating a circuit that includes a 24vac sprinkler solenoid. I need it to be portable so I'm planning on using DC current rather than AC. What is the best way to do this? If I just use straight ...
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71 views

Questions about a remote relay control application with a MOSFET

I need to control eight solenoid-valves for water drainage outdoors, remotely and simultaneously. The valves are normally closed (NC) type which I guess, in that context, means they open and let the ...
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3answers
592 views

Controlling Solenoid Valves with ULN2003A, Inrush Current, Arduino

I want to control a total of five solenoid valves with my Arduino. The solenoid walves operate at 12 volts and have a power consumption of 5 watts per solenoid valve, which equals a current of roughly ...
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2answers
350 views

Why there is a voltage drop while connect multiple 12 V or 24 V solenoid valve with a 24 V DC adapter

I am doing a water plant project. I need to control multiple solenoid valves with my micro controller circuit using relays. When I connect more than 4 solenoid valves (12 V) with a 15 V adapter it ...
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1answer
53 views

CKD solenoid burns on first trigger

I am trying to use a solenoid valve in order to switch on tap water using a switch on the live supply to the solenoid, but every time I switch on the first time, the solenoid activates and burns ...
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2answers
110 views

Is there a continuous duty electric valve available? [closed]

I was searching and surprisingly unable to find a simple continuous duty electric water valve? Below is my requirement. We get water from government. They release water only every 6th day., for few ...
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1answer
361 views

Controlling a 24VAC solenoid with arduino

I'm trying to come up with a design for controlling a 24VAC water valve with an arduino. My current design : I want to use a BT1308W TRIAC controlled by an arduino pin to activate the vale, I'm also ...
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1answer
975 views

How to modulate solenoid current driver with PWM?

I'm trying to pilot solenoid valves in a hydraulic circuit. I have two types of solenoids, one which support 2.4 A and another 1.8 A. I pilot the valves opening using 120 Hz pwm and this driver. It'...
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731 views

How do I use a hit and hold circuit with a solenoid?

Solenoids burn power when turned on and get hot, what is a way I can reduce the power while keeping the coil actuated?
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43 views

solenoid control valve

What is the purpose of the diode in the solenoid controlled valve circuit? (From what I read, without the diode, the MOSFET will break down but I don't know why)
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116 views

Solenoid Control Valve Design

Design a solenoid controlled valve. The solenoid has a coil resistance of 280 Ohms. Although the coil is rated for 12-14V, it will reliably open the valve with 11.0 V applied and will keep the valve ...
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2answers
371 views

Driving solenoid valve using LM358 as comparator and ULN2003

I'm trying to drive a 12V DC solenoid Valve with following diagram. In 1st block the PC input is compared with 2.2V and its output goes to block2 and ULN2003 for driving the valve. The 2nd block is a ...
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1answer
48 views

Solenoid valve part

Noob question, what is the pink one in the solenoid? Can it be bought separately? thanks
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1answer
87 views

Solenoid switch controller

I’m currently in the process of automating my orchard. I have a string of 87 irrigation solenoid valves, 24v 60hz, holding amps is 200 mA. I would like to connect them in series and use a single ...
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1answer
118 views

Power loss in an equally distributed parallel solenoid circuit

I have 12 solenoids (12v rated) connected in parallel to two Darlington arrays (ULN2803A). Each solenoid has 88-ohm impedance. The power supply can provide a stable 12V with up to 2A current draw. (...
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129 views

Relay controlling another relay - surge noise?

I'm working on a project that uses Arduino Nano to control 1A relays, which in turn control electrical solenoids in a car. This is for controlling the HVAC air flows in a dash, so my challenge is to ...
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1answer
531 views

Sprinkler system - long wires or long pipes?

I am in the process of installing a sprinkler system using a commercial controller. There is quite an extensive area to be covered, and I am wondering whether, for the further-away sections, it would ...
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189 views

How to dissipate energy/heat in solenoid valve + flyback diode circuit

A simple device that I didn't make uses solenoid valves (driven by relays) and I have to deal with the EM spikes they generate when turning off as this interferes with other equipment in my lab. The ...
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5k views

Does a solenoid valve allow continuous run-time for very long durations?

I have a bunch of A4F010-06-BS-DC24V solenoid relays. Can I use them on a continuous duty-cycle like certain relays or are they meant to be used only for certain duration at a time? I'm worried ...