Magnet valve

TSN79

I'm doing some drawings on a cooling system, which includes a couple of so called "magnet valves". What excactly is a magnet valve, and does it actually have anything to do with the normal type of magnets?

brewnog

I believe it to be as per a normal solenoid valve, but with a permanent magnet so that when power cannot be supplied (in an emergency, for instance) the valve can still actuate to an off position. They're used in gas cookers as safety devices, I believe.

Danger

So do you physically move the magnet into position, or is the valve held against it by a stronger electromagnet, or what? If the latter, a spring would make more sense. If the former, why not just a lever?

FredGarvin

I have never personally heard of the term. However, it makes sense that it is simply a solenoid valve since the entire operation is based on moving an iron core in a magnetic field.

Similar discussions for: Magnet valve
Thread	Forum	Replies
valve spring	Engineering, Comp Sci, & Technology Homework	3
Would running an electrical current through a magnet destroy the magnet?	General Physics	4
why the poles parts of the magnet are stronger then the other parts of the magnet?	Classical Physics	2
what make the magnet to be magnet with magnetic field?	General Physics	23
PVC valve	General Engineering	9

TSN79	Magnet valve I'm doing some drawings on a cooling system, which includes a couple of so called "magnet valves". What excactly is a magnet valve, and does it actually have anything to do with the normal type of magnets?

brewnog Recognitions: Gold Member Science Advisor	I believe it to be as per a normal solenoid valve, but with a permanent magnet so that when power cannot be supplied (in an emergency, for instance) the valve can still actuate to an off position. They're used in gas cookers as safety devices, I believe.

Danger Recognitions: Gold Member	So do you physically move the magnet into position, or is the valve held against it by a stronger electromagnet, or what? If the latter, a spring would make more sense. If the former, why not just a lever?

FredGarvin Recognitions: Science Advisor	Magnet valve I have never personally heard of the term. However, it makes sense that it is simply a solenoid valve since the entire operation is based on moving an iron core in a magnetic field.