Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

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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Why did my fuse blow after 3+ years of no problems?

For several years, I've had a solenoid wired to the 24VDC output of a PLC (Rockewell Automation 1769-OB16). To protect the PLC output card, a fast-acting 500mA fuse was installed between the PLC and the solenoid. The fuse has been working without…
CaptJak
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Can a Zener diode that protects a switch against inductance when the switch opens, affect turn on speed of the valve when you close it again?

As you probably know, in the applications that the turn off speed of the solenoid valves are crucial, the simple flyback diode is not effective. Some people put a resistor in series with the flyback diode to alleviate the problem, but for real fast…
arudino.tyro
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Small cheap electronic solenoid valve?

I want to make a device that can control a small solenoid valve for dispensing fluids. Basically a circuit which powers on and off the solenoid at different times to allow the fluid to flow. The fluids will be gravity fed so very little pressure is…
PICyourBrain
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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 about burning out the solenoid coils. The original…
The_Vintage_Collector
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DIY small solenoid water valve

I’m developing a huge project, very cool but very complex, is a “water printer” based on the work of a Japanese artist. I’m an electrical engineer so I’m very good at electronics and software dev, so most of the project is already done, I made a…
DomingoSL
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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 to the solenoid's contacts. I've got a solenoid…
Adrian McCarthy
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AC solenoid valve with DC

I have a 24VAC/60Hz solenoid. I used 12VDC just to try, and it worked good (well needless to say it worked as expected with 24VAC/60Hz). What are the effects of a solenoid that's designed for AC running with DC? Applied force does not seem to be a…
Diego C Nascimento
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Circuit to control a impulse solenoid valve from a movement detector

I have a movement detector sensor that generate a pulse (3.3V TTL) for 60 seconds when something moves in front of it. On the other hand, I have a impulse solenoid valve that close on a negative voltage (-3.6V) and open on a positive voltage…
Pat
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Contact sparking even with flyback diode

I'm building a circuit to measure both voltage and current given to a solenoid valve 24V DC 15W. In parallel to the valve is a voltage divider with 470k + 100k Ohm resistors. In series with the valve is a 1 Ohm 4W resistor. In parallel with both…
user124717
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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 LowPro Proportional Valve Data Sheet and it comes with…
Newbie
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High side regulation of current for proportional valve

I'm working with a circuit which is regulating the current over a generic, proportional solenoid valve (L1 in the schematic below). The characteristics of the valve coil is unknown/will vary and the task of the application is to compensate for…
Lundin
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Check for if I've picked the correct flyback and zener diodes for a solenoid valve driver

I want to use an arduino power driver shield which contains the RFP30N06LE MOSFET to drive the 12V version of a solenoid valve which has a power consumption of 2.0 Watts (so 167 mA current draw I think?). The power driver circuit does not appear to…
NJM
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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 motor. The solenoid valve is composed of a…
Bim
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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 available NMOS transistors. The problem I have is that…
Ismail Assaidi
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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 job. This is useful for home users and critical…
Jack Oat
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