The design of ball valve has a quarter turn spindle, ball and handle. The spindle is connected to the ball inside the valve. Handle lets you see the valve's position i.e. open or close. When the valve is opened the handle is placed along the valve or pipe's direction and when closed it is perpendicular to the valve. The plus point of ball valve is: they are strong and highly durable. They are perfect for shut off applications. Design Standard: BS S3S I/ API 60/ BS EN ISO 17292 Bore/Port: Full Bore/Reduced Bore Features: 3 Piece/ 2 Piece/ Single Piece Ball Valve, Trunnion Mounted / Floating Ball Testing Standard: API 598, ISO 5208 Pressure Rating: 150# to 1500# Size: 1/2" to 2" Screwed ends/ Socket weld ends ½”to 12" Flanged ends/Butt weld ends MOC: Carbon Steel/ Stainless Steel or Alloy Steel Operation: Manual/ Pneumatic/ Electrical