A overfill prevention valve, comprising: a conduit (62e, 62f, 62g) having a first end and a second end, a conduit wall spanning said first end of said conduit (62e, 62f, 62g) and said second end of said conduit (62e, 62f, 62g), said conduit wall defining a conduit wall interior surface (72e, 72f, 72g) and a conduit wall exterior surface (70e, 70f), said conduit wall interior surface (72e, 72f, 72g) defining a fluid path through said conduit (62e, 62f, 62g) from said first end of said conduit (62e, 62f, 62g) to said second end of said conduit (62e, 62f, 62g); a valve body moveably positioned in said fluid path of said conduit (62e, 62f, 62g), said valve body moveable from an open position to a closed position; and a non-contact valve actuator (76e, 76f, 76d) moveable relative to said valve body and positioned outside of said conduit (62e, 62f, 62g), said conduit wall interposed between said non-contact valve actuator (76e, 76f, 76d) and said fluid path, said non-contact valve actuator (76e, 76f, 76d) operable to actuate said valve body from said open position toward said closed position without physically penetrating said conduit wall, said non-contact valve actuator (76e, 76f, 76d) having a first position in which said non-contact valve actuator (76e, 76f, 76d) does not actuate said valve body from said open position toward said closed position and a second position in which said non-contact valve actuator (76e, 76f, 76d) actuates said valve body from said open position toward said closed position; characterized by a contact valve actuator positioned interior of said conduit wall, whereby said conduit wall is interposed between said contact valve actuator and said non-contact valve actuator (76e, 76f, 76d), said contact valve actuator moveable relative to said conduit wall interior surface (72e, 72f, 72g) and positioned whereby actuation of said contact valve actuator causes said contact valve actuator to actuate said valve body from said open position toward said closed position and into a position in which a flow of fluid through said conduit (62e, 62f, 62g) can act on said valve body and further cause movement of said valve body from said open position toward said closed position, said contact valve actuator moveable independent from said valve body; said contact valve actuator linked to said non-contact valve actuator (76e, 76f, 76d), so that movement of said non-contact valve actuator (76e, 76f, 76d) from said first position to said second position actuates said contact valve actuator so that said contact valve actuator actuates said valve body from said open position toward said closed position. a conduit (62e, 62f, 62g) having a first end and a second end, a conduit wall spanning said first end of said conduit (62e, 62f, 62g) and said second end of said conduit (62e, 62f, 62g), said conduit wall defining a conduit wall interior surface (72e, 72f, 72g) and a conduit wall exterior surface (70e, 70f), said conduit wall interior surface (72e, 72f, 72g) defining a fluid path through said conduit (62e, 62f, 62g) from said first end of said conduit (62e, 62f, 62g) to said second end of said conduit (62e, 62f, 62g); a valve body moveably positioned in said fluid path of said conduit (62e, 62f, 62g), said valve body moveable from an open position to a closed position; and a non-contact valve actuator (76e, 76f, 76d) moveable relative to said valve body and positioned outside of said conduit (62e, 62f, 62g), said conduit wall interposed between said non-contact valve actuator (76e, 76f, 76d) and said fluid path, said non-contact valve actuator (76e, 76f, 76d) operable to actuate said valve body from said open position toward said closed position without physically penetrating said conduit wall, said non-contact valve actuator (76e, 76f, 76d) having a first position in which said non-contact valve actuator (76e, 76f, 76d) does not actuate said valve body from said open position toward said closed position and a second position in which said non-contact valve actuator (76e, 76f, 76d) actuates said valve body from said open position toward said closed position; characterized by a contact valve actuator positioned interior of said conduit wall, whereby said conduit wall is interposed between said contact valve actuator and said non-contact valve actuator (76e, 76f, 76d), said contact valve actuator moveable relative to said conduit wall interior surface (72e, 72f, 72g) and positioned whereby actuation of said contact valve actuator causes said contact valve actuator to actuate said valve body from said open position toward said closed position and into a position in which a flow of fluid through said conduit (62e, 62f, 62g) can act on said valve body and further cause movement of said valve body from said open position toward said closed position, said contact valve actuator moveable independent from said valve body; said contact valve actuator linked to said non-contact valve actuator (76e, 76f, 76d), so that movement of said non-contact valve actuator (76e, 76f, 76d) from said first position to said second position actuates said contact valve actuator so that said contact valve actuator actuates said valve body from said open position toward said closed position.