i am looking for ball valve sketch
hello
i am a student learning solidworks.
i am looking for a full sketch of ball valve,
like this
http://upload.wikimedia.org/wikipedia/commons/5/52/Seccion_valvula_de_bola.jpg
or this
http://img.directindustry.com/images_di/photo-g/3-piece-ball-valves-21299-2506229.jpg
or something like them. just for practise,
i need a full sketch with dimensions.
thank you for your help.