| 主要外形连接尺寸
                                     单位:mm 
| DN(mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |  
| L | 203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 | 781 | 914 | 978 | 978 | 1295 | 1448 | 1600 | 1760 | 1900 |  
| H | 180 | 210 | 225 | 245 | 280 | 320 | 380 | 450 | 470 | 500 |  |  |  |  |  |  |  |  |  
| H1 |  |  |  |  |  |  | 510 | 570 | 640 | 715 | 815 | 825 | 980 | 1155 | 1260 | 1350 | 1660 | 1700 |  
 
 相关止回阀产品系列: 
H41X/W-16P不锈钢消声止回阀       
 
H41H/W升降式止回阀      
H42H/W立式止回阀                 HH47X/HH48X/HH49X微阻缓闭蝶型消声止回阀 
HH44X微阻缓闭止回阀                     H71H/W对夹升降式止回阀(全铜)  
H71H/W对夹升降式止回阀              H74 Ⅱ型对夹薄型止回阀 
H76X对夹蝶型旋启式止回阀            
H41X/W全铜消声止回阀 
HC44X-10-16橡胶瓣止回阀                
  H44H/W旋启式止回阀 
H76H/W对夹蝶型止回阀(双瓣式)           
H42X底阀 
H41X/W消声止回阀(铁壳铜芯)          
 HQ41X球形止回阀(无磨损球形止回阀) 
HQ45X型 微阻球形止回阀                  H42H/W不锈钢法兰立式止回阀 
H14W-16P/R不锈钢螺纹旋启式止回阀       
 H61Y型高压升降式止回阀 
H42T型(DRVZ)静音止回阀                 H41W型不锈钢升降式止回阀 H12W-16P/R不锈钢丝口止回阀      
       H12W-16T黄铜丝口止回阀 H74Ⅰ型对夹薄型止回阀 |