THIS VALVE CAN BE DESIGNED IN THE DESIRED SIZES. I HAVE ADDED THIS AS AN EXAMPLE ONLY. CURRENT DESIGN HAS BEEN DESIGNED FROM 168 PIPES DIAMETER. I CAN DESIGN AND SEND THE SIZE YOU WANT FOR THIS VALVE MADE FROM PIPE. ALSO, ALL OF THE BUTTERFLY VALVE MODELS I HAVE ARE AVAILABLE IN DWG FORMAT MANUFACTURING PROJECTS. THANK YOU...