(K)Ax46F(Y)、AF46Y先导式安全阀是一种新颖结构的安全泄压阀。主要用于石油天然气、化工、电力、冶金和城市燃气等领域，是受压设备、容器或管路上的最佳超压保护装置。其主要优点是变弹簧直接作用为导阀间接作用，提高了动作的灵敏度，而且主阀采用套筒活塞式，双重密封阀座结构，动作精度高、重复性好、回座快、不泄漏、能带高背压排放、工作等命长、工作稳定可靠，它还可在线调校，反复启跳排放后，仍然能自动回座，关闭严密，操作维护方便。【结构图】【主要零部件材料】NO.先导式安全阀零件名称Ax46Y/F材料KAX46Y/F材料1阀体WCBWCB2阀瓣2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE3导向套1Cr18Ni9Ti1Cr18Ni9Ti4弹簧50CrVA50CrVA5O型圈氟橡胶氟橡胶6阀盖25257导阀部件【外形尺寸和连接尺寸】先导安全阀型号公称通径doLL1L2HDN'DD1D2D6bZ-ødD'D1'D2'D6'b'Z'-ød'(K)Ax46F-16YAF46Y-16251511095150365321158565164-1414010078184-1832201151001503754014010078184-1815011085184-1840251201101603905015011085184-18165125100204-18503213512016041065165125100204-18185145120204-18654016014017543580185145120204-18200160135208-188050170135175451100200160135208-18220180155228-1810065195175195500125220180155228-18250210185248-1812580210190220526150250210185228-18285240210248-23150100255230265623175285240210248-23315270240268-232001253002603006902503402952652612-234053553203012-26(K)Ax46F-25YAF46Y-25251511095150365321158565164-1414010078184-1832201151001503754014010078184-1815011085184-1840251201101603905015011085184-18165125100204-18503213512016041065165125100204-18185145120204-18654016014017543580185145120228-18200160135208-188050170135175451100200160135228-18220180155228-1810065195175195500125230190160248-23250210185228-1812580210190220526150270220188288-26285240210248-23150100255230265623175300250218308-26310270240268-232001253002603006902503603102783412-264053553203012-26(K)Ax46F-40YAF46Y-4025151109515036532115856558164-1414010078184-183220115100150375401401007866184-1815011085184-184025120110160390501501108576184-18165125100204-1850321351201604106516512510088204-18185145120204-18654016014017543580185145120110228-18200160135208-188050170135175451100200160135121228-18220180155228-1810065195175195500125235190160150248-23250210185228-1812580210190220526150270220188176288-26285240210248-23150100255230265623175300250218204308-26310270240268-23200125300260300690250375320