from the block 25 when the associated coil is energized when the coil is de energized the plunger 43 is urged toward the block 25 by a compression spring 45 and by the fact that the pressure in the inlet passage 27 is greater than that in the intermediate flow passages 29 to put it another way the pressure 34 drop 34 across the plunger 43 is in a direction to urge such plunger 43 toward the block 25 to more tightly seal the passage 29 connection boxes 47 are provided to connect electrical wiring to the coils the block 25 has plural inlet passages 27 and in the depiction of fig4 such passages 27 extend in a direction perpendicular to the plane of the drawing sheet each such passage 27 communicates with a separate annular cavity 49 in the block 25 and in the depiction of fig4 the passage 27 opens into the cavity 49 at a location behind the solenoid valve plunger 43 thus the passages 27 are shown in dashed outline referring to fig4 and 6 each of a plurality of intermediate flow passages 29 four in the depicted block 25 one such passage 29 corresponding to each inlet passage 27 is in continuous flow communication with an outlet passage 33 described in more detail below it is to be appreciated that these passages 29 shown in fig5 and to the left in fig4 are coaxial with one another and that fluid flowing in such passages 29 flows.