对夹式止回阀 对夹双瓣旋启式止回阀、长系列对夹单瓣旋启式止回阀、对夹蝶式止回阀阀体的结构长度
                                                                                                                                                                                                                                                                                                                                                                                                             
|   公称尺寸 DN  | 
  公  称  压  力  PN  | 
||||||||
|   ≤10、16、20  | 
  25、40、50  | 
  63  | 
  100、110  | 
  150、160  | 
  250、260  | 
  320、400、420  | 
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|   系列1  | 
  系列2  | 
  系列1  | 
  系列2  | 
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|   结 构 长 度/mm  | 
|||||||||
|   50  | 
  60  | 
  43  | 
  60  | 
  43  | 
  60  | 
  60  | 
  70  | 
  70  | 
  70  | 
|   65  | 
  67  | 
  46  | 
  67  | 
  46  | 
  67  | 
  67  | 
  83  | 
  83  | 
  83  | 
|   80  | 
  73  | 
  64  | 
  73  | 
  64  | 
  73  | 
  73  | 
  83  | 
  83  | 
  86  | 
|   100  | 
  73  | 
  64  | 
  73  | 
  64  | 
  79  | 
  79  | 
  102  | 
  102  | 
  105  | 
|   125  | 
  86  | 
  70  | 
  86  | 
  70  | 
  105  | 
  105  | 
  110  | 
  110  | 
  110  | 
|   150  | 
  98  | 
  76  | 
  98  | 
  76  | 
  136  | 
  136  | 
  159  | 
  159  | 
  159  | 
|   200  | 
  127  | 
  89  | 
  127  | 
  89  | 
  165  | 
  165  | 
  206  | 
  206  | 
  206  | 
|   250  | 
  146  | 
  114  | 
  146  | 
  114  | 
  213  | 
  213  | 
  241  | 
  248  | 
  254  | 
|   300  | 
  181  | 
  114  | 
  181  | 
  114  | 
  229  | 
  229  | 
  292  | 
  305  | 
  305  | 
|   350  | 
  184  | 
  127  | 
  222  | 
  127  | 
  273  | 
  273  | 
  356  | 
  356  | 
  —  | 
|   400  | 
  191  | 
  140  | 
  232  | 
  140  | 
  305  | 
  305  | 
  384  | 
  384  | 
  —  | 
|   450  | 
  203  | 
  152  | 
  264  | 
  152  | 
  362  | 
  362  | 
  451  | 
  468  | 
  —  | 
|   500  | 
  219  | 
  152  | 
  292  | 
  152  | 
  368  | 
  368  | 
  451  | 
  533  | 
  —  | 
|   600  | 
  222  | 
  178  | 
  318  | 
  178  | 
  394  | 
  438  | 
  495  | 
  559  | 
  —  | 
|   650  | 
  356  | 
  —  | 
  356  | 
  —  | 
  —  | 
  457  | 
  523  | 
  —  | 
  —  | 
|   700  | 
  381  | 
  229  | 
  381  | 
  229  | 
  460  | 
  483  | 
  572  | 
  —  | 
  —  | 
|   750  | 
  305  | 
  —  | 
  368  | 
  —  | 
  460  | 
  505  | 
  635  | 
  —  | 
  —  | 
|   800  | 
  356  | 
  241  | 
  406  | 
  241  | 
  533  | 
  533  | 
  660  | 
  —  | 
  —  | 
|   900  | 
  368  | 
  241  | 
  483  | 
  241  | 
  635  | 
  635  | 
  718  | 
  —  | 
  —  | 
|   1000  | 
  432  | 
  300  | 
  546  | 
  300  | 
  660  | 
  660  | 
  762  | 
  —  | 
  —  | 
|   1050  | 
  432  | 
  —  | 
  568  | 
  —  | 
  701  | 
  701  | 
  787  | 
  —  | 
  —  | 
|   1200  | 
  524  | 
  350  | 
  629  | 
  350  | 
  —  | 
  787  | 
  —  | 
  —  | 
  —  | 
|   1350  | 
  591  | 
  —  | 
  718  | 
  —  | 
  —  | 
  889  | 
  —  | 
  —  | 
  —  | 
|   1400  | 
  591  | 
  —  | 
  718  | 
  —  | 
  —  | 
  889  | 
  —  | 
  —  | 
  —  | 
|   1500  | 
  660  | 
  —  | 
  838  | 
  —  | 
  —  | 
  991  | 
  —  | 
  —  | 
  —  | 
|   1600  | 
  787  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|   1650  | 
  787  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|   1800  | 
  851  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|   1950  | 
  927  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|   2000  | 
  927  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|   2100  | 
  1041  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
  —  | 
|       注1:对于有两个系列的结构长度数据,优先采用系列1尺寸。     注2:公称尺寸不小于DN1 350 的结构长度数据,仅适用于对夹双瓣旋启式止回阀。  | 
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