 H74对夹单瓣旋启式止回阀
H74 Clip-on single valve flap swing type check valve
主要尺寸 Main dimensions
通径
DN（mm） | L | D1 | D | | PN1.0、1.6MPa | PN2.5、4.0MPa | 1.0MPa | 1.6MPa | 2.5MPa | 4.0MPa | | 50 | 19 | 19 | 25 | 109 | 109 | 109 | 109 | | 65 | 19 | 19 | 38 | 129 | 29 | 129 | 129 | | 80 | 19 | 19 | 46 | 144 | 144 | 144 | 144 | | 100 | 19 | 19 | 71.5 | 164 | 164 | 170 | 170 | | 125 | 19 | 19 | 95 | 194 | 194 | 196 | 196 | | 150 | 19 | 29 | 114 | 220 | 220 | 226 | 226 | | 200 | 29 | 29 | 140 | 275 | 275 | 286 | 293 | | 250 | 29 | 38 | 188 | 330 | 331 | 343 | 355 | | 300 | 38 | 51 | 216 | 380 | 386 | 403 | 420 | | 350 | 44 | 51 | 263 | 440 | 446 | 460 | 477 | | 400 | 51 | 51 | 305 | 491 | 495 | 517 | 549 | | 450 | 60 | 76 | 356 | 541 | 558 | 567 | 574 | | 500 | 64 | 83 | 406 | 596 | 620 | 622 | 626 | | 600 | 70 | 90 | 482 | 698 | 732 | 734 | 745 | | 700 | 80 | 90 | 562 | 813 | 804 | 831 | - | | 800 | 90 | 100 | 464 | 918 | 912 | 942 | - | | 900 | 90 | 100 | 738 | 1018 | 1012 | 1040 | - | | 1000 | 100 | 120 | 846 | 1124 | 1126 | 1155 | - |
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