Hartmann pigging valves provide a space- and cost-saving substitution for expensive pig launching systems. In addition to its classic use as shut-off valve, the pigging ball valve functions as pig launcher or receiver valve. The simple, secure, and fast insertion or removal of pigs take place through an interlock that is integrated on the side of the pigging valve and that is locked and secured through a bayonet system.
An optional bypass in the closed position also allows cleaning operations when the medium flow is not to be interrupted completely. In addition, the pigging valve can be used for separating different products in a pipeline. A 3-step, redundant safety concept and an entirely metallic sealing shutoff guarantee highest availability for operation and cleaning of oil, gas, slurry and water applications. In the standard version pigging ball valves are designed for a maximum scraper length of 1.4 x nominal diameter of the pipeline but upon request Hartmann offers special constructions for extended scraper length. Furthermore, Hartmann is able to provide 180° pigging valves which can act as launcher and receiver in both directions. This innovative pigging valve concept is already in use as global standard solution at leading oil companies.