Data: 2008-09-01 From www.supply-valve.com

Ball with circle channel, disc of the ball valves, rotates with the stem which is perpendicular to axes of channel to open or close the ball valves. Ball valves is usually used to open and close medium in pips and other equipments Classification of Ball valves Ball valves is classified by structural style as : Floating ball type, fixed ball type, flexibility ball valves, oil-tight ball valves. Ball valves is classified by channel as: straight way type , angie type ,three way type and so on. There are two kind of three way type: T shape and L shape. It is classified by connection style as :thread connection, flanged connection, welded type. Ball valves's major advantage is as bellow
1. It's adequate for operate frequently,can be opened and closed rapidly
2. It's hydraulic resistance is small
3. simple in structure ,relative volumn is small, light in weight ,easy to maintain
4.It gives good sealability
5.It is not limited in mounting direct, medium can flow at will
6.It works with no libration and low noise.