A valve apparatus comprising: a housing including an internal passageway and an external surface presenting a retention formation; a valve disposed at least partially within the housing and being rotatable within the internal passageway, the valve having an open position that permits flow through the internal passageway and a closed position that blocks flow through the internal passageway; characterized in that the valve apparatus comprises: a valve cap attached to the valve presenting slots opposite the area of attachment to the valve and a tab; a torsion spring actuator helically extending between a pair of tails with one of the pair of tails abutting the retention formation of the housing and the other of the pair of tails abutting the tab of the valve cap such that the torsion spring actuator applies a rotational force to the valve cap and the valve biasing the valve to a fail-safe position; and a shape memory trigger extending between a pair of distal ends with at least one of the distal ends of the shape memory trigger being secured to at least one of (a) the housing and (b) the valve cap, the shape memory trigger being made of a shape memory material and initially assuming a locked position where the shape memory trigger engages the slots of the valve cap and the shape memory trigger assuming an unlocked position where the shape memory trigger disengages the slots of the valve cap allowing the torsion spring actuator to rotate the valve to the fail safe position in response to a change in at least one of (i) temperature and (ii) electrical current. a housing including an internal passageway and an external surface presenting a retention formation; a valve disposed at least partially within the housing and being rotatable within the internal passageway, the valve having an open position that permits flow through the internal passageway and a closed position that blocks flow through the internal passageway; characterized in that the valve apparatus comprises: a valve cap attached to the valve presenting slots opposite the area of attachment to the valve and a tab; a torsion spring actuator helically extending between a pair of tails with one of the pair of tails abutting the retention formation of the housing and the other of the pair of tails abutting the tab of the valve cap such that the torsion spring actuator applies a rotational force to the valve cap and the valve biasing the valve to a fail-safe position; and a shape memory trigger extending between a pair of distal ends with at least one of the distal ends of the shape memory trigger being secured to at least one of (a) the housing and (b) the valve cap, the shape memory trigger being made of a shape memory material and initially assuming a locked position where the shape memory trigger engages the slots of the valve cap and the shape memory trigger assuming an unlocked position where the shape memory trigger disengages the slots of the valve cap allowing the torsion spring actuator to rotate the valve to the fail safe position in response to a change in at least one of (i) temperature and (ii) electrical current. a valve cap attached to the valve presenting slots opposite the area of attachment to the valve and a tab; a torsion spring actuator helically extending between a pair of tails with one of the pair of tails abutting the retention formation of the housing and the other of the pair of tails abutting the tab of the valve cap such that the torsion spring actuator applies a rotational force to the valve cap and the valve biasing the valve to a fail-safe position; and a shape memory trigger extending between a pair of distal ends with at least one of the distal ends of the shape memory trigger being secured to at least one of (a) the housing and (b) the valve cap, the shape memory trigger being made of a shape memory material and initially assuming a locked position where the shape memory trigger engages the slots of the valve cap and the shape memory trigger assuming an unlocked position where the shape memory trigger disengages the slots of the valve cap allowing the torsion spring actuator to rotate the valve to the fail safe position in response to a change in at least one of (i) temperature and (ii) electrical current.