Abstract: A valve including a housing, a rotating member positioned within the housing, and an actuator engaged with the rotating member. The rotating member has a generally cylindrical form and a cavity extending through a portion of the generally cylindrical form in a direction generally perpendicular to an axis of the generally cylindrical form. The rotating member is positioned within the housing such that, during operation of the valve, the actuator rotates the rotating member within the housing about the axis of the generally cylindrical form, and upon completion of about 90° of rotation of the rotating member about the axis, the cavity becomes aligned within the housing to change the valve from an open condition to a closed condition, or vice versa. The rotating member includes inorganic fibers and a binder. Methods of making and using the valve are also contemplated.

Abstract: A valve including: a housing; a rotating member positioned within the housing; and an actuator engaged with the rotating member; wherein the rotating member has a generally cylindrical form and at least one cavity extending through a portion of the generally cylindrical form in a direction generally perpendicular to an axis of the generally cylindrical form; wherein the rotating member is positioned within the housing such that, during operation of the valve, the actuator rotates the rotating member within the housing about the axis of the generally cylindrical form, and upon completion of about 90° of rotation of the rotating member about the axis, the at least one cavity becomes aligned within the housing to change the valve from an open condition to a closed condition, or from a closed condition to an open condition; and wherein the rotating member includes inorganic fibers and at least one binder. Methods of making and using the valve are also contemplated.