FIELD DOCUMENTS AND WORK PLANS 1992-1999

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Section 15C - MISCELLANEOUS VALVES 15C-1. SCOPE. This section covers all valves, except where specific requirements are stipulated in other sections. 15C-2. GENERAL. 15C-2.01 . Manual Operators. All valves, except those which are equipped with power actuated operators or are designed for automatic operation, shall be provided with manual operators. 15C-2.02. Lever Operators. Unless otherwise shown or specified, butterfly valves shall be lever operated. Operating levers shall be furnished for each lever valve. 15C-2.03. Rotation. The direction of rotation of the wheel , wrench nut, or lever to open the valve shall be to the left (counterclockwise) . Each valve body or operator shall have cast thereon the word "OPEN" and an arrow indicating the direction to open. 15C-2.04. Length Tolerance. Actual length of valves shall be within 1/16 inch (plus or minus) of the specified or theoretical length. 15C-2.05. Ends. Unless otherwise specified or shown on the drawings, all valves shall have threaded or welding ends as required by the piping system in which the valve is to be installed. Unless otherwise indicated on the drawing, flange diameter and drilling shall conform to ANSI B16. 1 , Class 125 or ANSI 816.5, Class 150. Push-on and mechanical joints shall conform to ANSI A21.11. Wafer style valves shall be designed for installation between ANSI Class 125 flanges. 15C-2.06. Shop Painting. All ferrous metal surfaces of valves and accessories, both interior and exterior, shall be shop painted for corrosion protection. The valve manufacturer's standard paint will be acceptable provided it is functionally equivalent to the specified paint and is compatible with the specified field painting. a. Materials. Asphalt Varnish Fed Spec TT-V-51 . Coal Tar Koppers "Bitumastic Super Service Black" , Tnemec "46-449 Heavy Duty Black" or Valspar "35-J-10 Hi-Build Bituminous Coating. " (MARLEY FSSF ) (CONTRACT NO. 13 ) 15C-1 (11654.812 )