Pig Ball Valve, normally consists of Pig Launching & Pig Receiving valve, is a device for loading and receiving cleaning pigs and detecting tools to clean the internal pipe periodically, and it is especially widely used in Oil & Gas pipeline industry. The field tested pig valve offers durability, reliability service for oil and gas applications to improve the piping transportation efficiency. It can be easily and safely used with most of the popular pig styles, either one-piece molded pigs or the spherical pigs that are intended for use in pig ball valves.