includes a rigid hollow preferably ferrous metal coil can 16 in which a composite armature 18 which may be referred to herein as a plunger is reciprocatingly disposed within an annulus defined by the below described coil for motion along the long axis of the armature 18 support structure such as bushings and or a tube 19 may be provided in the coil can to radially support the below described alignment features of the armature 18 a lid 19 a may be disposed between the tube 19 and coil can 16 as shown fig1 shows that the armature 18 may have a frusto conical shaped valve element 20 or poppet portion formed on one end of the armature 18 it being understood that the particular contour of the valve element 20 can take on other configurations as can be appreciated in reference to fig1 the valve element 20 can be moved against a complementarily shaped valve seat 22 that is defined by a valve body 24 which is joined in some implementations by the tube 19 to the coil can 16 the valve seat 22 defines a fluid passageway when the armature 18 is in the closed configuration i e against the valve seat 22 fluid flow through the fluid passageway of the valve seat 22 is prevented on the other hand when the armature 18 is moved away from the valve seat 22 to an open configuration fluid flow through the fluid passageway of the valve seat 22 is permitted the armature 18 may be actuated by selectively energizing and deenergizing a coil 26 located in the coil.