Van den Bergh opened the semi-final with a brilliant 160 finish and punished early missed doubles from Wade to open up a 5-1 lead.
A high-quality contest then saw the pair hold throw for 12 legs - of which 11 were won in 15 darts or less - before Wade broke in leg 18 and then pinned double ten to cut the gap to 10-9.
Van den Bergh hit back, then broke back with a 76 finish and produced an 11-darter as he pulled out to 13-9, only for Wade to then take four of the next five to level at 14-all.
Van den Bergh posted a 14-darter to move a leg away from victory, but missed a dart at the bull for victory in leg 30 as Wade finished double six to stay in the game.
He then opened
James Wade remains on course to reach his third Grand Slam of Darts final after taking a 16-13 win over Damon Heta in a high-quality last eight encounter.
