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Explanation: The labyrinth bushings installed as an “upgrade” in some pumps don’t wear, but don’t seal against moisture even when new. http://tinyurl.com/32wwuc [pdf to html]
est réalisée par des bagues labyrinthe. Ces bagues ne touchent. pas l’arbre et donc ne subissent aucune usure. De part sa technologie les compresseurs ... www.blackmer.com/myapp/pdf/1148-001e_f.pdf