FLUID CONTROL VALVE

摘要

PROBLEM TO BE SOLVED: To provided a fluid control valve for allowing strict management of fluid control having a valve main body compact, not requiring a wide piping space and having small piping resistance. SOLUTION: A valve element 2, movably included in a straight pipe conduit 7 formed in a body 3, having a magnetic material or a magnet is composed to be capable of being operated from outside of the body 3 by magnetic force of the magnet 18 provided at a piston 15. The magnet 18 is positioned so that a distanceΔl from a center position C2 of the magnet 18 to the center position C1 of the valve element 2 satisfies the following relation supposing diameter of the valving element 2 to be D when valve element 2 contacts with a valve seat 11; D/5<Δl