Pig ball valves   Special feature Using the Hartmann pig valve customer can save costs for material, operation & space, as these valves are installed directly into the main stream line.    The design basis is a standard ball valve which has an additional side-entry sluice incorporated. By means of this trippel secured sluice the pig can be launched and received.  Nominal diameters DN 25 to 300 1" to 12"  Pressure stages DIN PN 16 to 250 ANSI Class 150 to 1500 (further pressure classes on request)       Design Type HMR for cleaning purposes Type HMB with by-pass in closed position Type HMS for separating different mediums in the same pipelinge     in Deutsch