The double flanged body pattern ensures precise installation in pipeline, and can be used as an end to the line valve if required. The unique feature of this valve, is its adaptability for lined pipes, due to negligible disc protrusion beyond the body laying length.
A ball valve consists of a valve body in which a large sphere with a central hole equal to the inside diameter of the pipe is mounted. As the ball is rotated, in the fully open position the valve provides the through conduit or full bore required for unrestricted flow of the fluid and scrapers or pigs.
Cast iron butterfly valves, commonly referred to as gray iron butterfly valve, are made of an alloy containing iron and 2-4% carbon, and may contain trace amounts of other impurities like sulfur or phosphorus. The cast iron butterfly valves are a cheap option for non-critical applications.
