Abstract: A one-piece, prefabricated bracket is provided which conveniently and effectively supports a pipe fitting having a change-of-direction section to an adjacent surface. The bracket is comprised of a body, a surround element, means for supporting the pipe fitting and means for attaching the bracket to the surface. In a typical embodiment, the bracket is adapted for supporting a T fitting or an ell fitting. The surround element is sized and dimensioned to surround the change-of-direction section of the pipe fitting so as to firmly retain the pipe fitting within the bracket. The attachment means is typically a pair of spaced-apart flanges attached to the body.

Abstract: A high purity, corrosion resistant butterfly valve comprises a pair of body halves each having an inner surface and an outer surface, and an inner face extending between the inner surface and the outer surface; a liner fitted to the inner surface of the body halves and defining a fluid media passage; and a disk member mounted on a stem and pivotally movable in the fluid media passage between open and closed positions. No sealing element is provided between the inner faces of the body to enable the fluid media to pass between the inner faces to the outer surface if leakage occurs and provide an external indication of leakage. The liner and the disk member form a direct seal in the closed position and are substantially the only elements of the butterfly valve that are wetted during service. The liner and the disk member are formed of materials that are corrosion resistant and substantially chemically inert and non-contaminating with respect to high purity, de-ionized water.