This model can be considered an evolution of models AP10 and AP11 because designed to make easyier the maintenance on those wafer valves used on dirty services.
The use of a spit body wafer design eliminates the possibilità of galling on end ring nut like possible in standard AP10 or AP11.
The automatic body cavity pressure relief together with Bi-directionality make this model of tecnica high level.
Available with heating jacket also (in this case called WSJ)
All valves are provided with ISO 5211 top drilling.
Face to face are according to EN558 serie 100 (DN 3”, 4”, 6”), 101 (DN ½”, 3/4”) e 107.