Abstract: An excess flow shut-off valve has a body with a flow passageway therethrough. A closure ball is rotatably supported within the body and has a flow passageway therethrough. The ball has a first rotational position in which the ball passageway is in alignment with the valve body passageway permitting flow through the valve and a second rotational position in which the flow passageway is out of alignment with the body flow passageway, preventing flow through the valve. A closure spring biases the ball towards the second (closed) position. An actuator has a first position holding the ball in the first (open) position. A paddle extending from the actuator into the body flow passageway. Fluid flow through said valve impinging on the paddle and tends to displace the actuator against the bias of the actuator spring. The bias of the actuator spring is overcome by excess fluid flow impinging on the paddle to thereby permit the ball to rotate to the valve closed position.

Abstract: A safety shut off valve has a tubular body with an axial guide therein. A poppet is secured to a shaft slidably supported by the axial guide. A tubular seat received within the tubular body has a seating surface against which the poppet seats when in the closed position. The body including a stop member that engages a plunger portion extending from the poppet to hold the poppet open. The body having a circumferential area of weakness therearound so that if the body is severed along the area of weakness, the stop member is removed and the poppet is allowed to close to prevent fluid flow through the body.