H76J衬胶止回阀是一种由阀体、阀瓣、阀轴和弹簧等组成的氟塑料衬里对夹双瓣旋启式止回阀,其与流体接触的金属表面均一体压注成型有衬氟塑料层,该阀通过介质和扭簧的合力控制阀瓣的启闭,阀瓣在介质静压和冲量下开启,介质通过流道,面积减小,流速增加,压力降低,阀瓣前后形成压差,克服扭簧力继续开起,介质速度增加到...
340A+87B+10C+54D+12E+19F+14G+14H+184I+15J+2K-1L=0(7) 502A+82B+17C+115D+12E+20F+8G+10H+152I+16J+10K-1L=0(8) 300A+104B+21C+243D+13E+20F+12G+17H+173I+16J-1L=0(9) 332A+84B+29C+124D+9E+13F+9G+17H+126I+22J+9K-1L=0(10) ...
4 A + 36 B + 16 C + 25 D + 6 E + 36 F + 15 G + 28 H + 76 I + 45 J + 66 K + 58 L + 78 M + 49 N + 71 O + 59 P = 56 (11) 4 A + 40 B + 18 C + 27 D + 7 E + 39 F + 16 G + 31 H + 84 I + 49 J + 72 K + 64 L + 85 M + 54 N...