quick disconnect coupling which is attached to the outlet portion 42 of the device of the invention the handle means 24 is contoured to contain a shoulder notch 78 so that when the valve means is in an open position it is not possible to move the otherwise slidable outer sleeve portion 58 to permit disengagement of a male member that is engaged with the female member of the quick disconnect pair by such provision separation of the complementary counterparts of the quick disconnect coupling is not possible during times when the valve means is in an open position fig2 shows an exploded view of the various elements of the valve device of this invention and their respective positions according to a preferred form of the invention in this figure the main valve body portion 12 having boss 69 is depicted showing probe element 26 shaft 20 bushing 22 and the handle means 24 packing portions 28 and 30 valve means 14 and the spring seat 32 are shown as well as spring means 54 and poppet valve movable element 56 having tip portion 33 the female member of the quick disconnect coupling pair 90 the construction of which is known to those skilled in the art is shown to include a substantially cylindrically shaped main body portion 72 having a plurality of retractable spherical elements 92 disposed about its inner wall portion an outer sleeve portion 58 a spring means 74 for biasing the sleeve portion and a linking portion 76 which preferably includes threads on its outer surface complementary to those disposed on the end portion of.