船用德標鑄鐵雙瓣式止回閥4101
閥體：球墨鑄鐵 閥板：青銅 不銹鋼
| IMPA | 閥體厚度 | 閥體外徑 | |||
| 蝶形止回閥4101 | 756071 | PN16 | DN50 | 54 | 105 |
| 756072 | DN65 | 54 | 124 | ||
| 756073 | DN80 | 57 | 136 | ||
| 756074 | DN100 | 63 | 174 | ||
| 756075 | DN125 | 70 | 196 | ||
| 756076 | DN150 | 76 | 222 | ||
| 756077 | DN200 | 95 | 279 | ||
| 756078 | PN10 | DN250 | 108 | 340 | |
| 756079 | DN300 | 143 | 410 | ||
| 756080 | DN350 | 184 | 451 | ||
| 756081 | DN400 | 190 | 514 | ||
| 756082 | DN450 | 203 | 549 | ||
| 756083 | DN500 | 212 |
606 |