| 
 JIS-10K(PN16、PN10)  |  
| 
 FIG.066N-铸铁缓冲式止回阀  |    | 
CAST IRON SILENT CHECK VALVE  | 
| 
 Renewable body & disc seat rings,Leader disc,Prevention water hammer.  | 
| 
 | 
| 
 零件 PART  | 
 材质 MATERIAL  |  
| 阀体 BODY | 
CAST IRON (FC20) |  
| 阀盘 DISC | 
 CAST BRASS(YBSC3)2"~3" 
DUCTILE IRON(FCD45)4"~12"  |  
| 阀座 BODY SEAT | 
CAST BRASS (YBSC3) |  
| 阀座环 SEAT RING | 
NBR |  
| 阀杆 STEM  | 
BRASS (B16)  |  
| 弹簧 SPRING  | 
STAINLESS STEEL (304) |     | 
 | 
| 
 尺寸  | 
 2  | 
 21/2  | 
 3  | 
 4  | 
 5   | 
 6  | 
 8  | 
 10  | 
 12  |  
| 
 L  | 
 157  | 
 200  | 
 210  | 
 220  | 
 258  | 
 280  | 
 280  | 
 315  | 
 370  |  
| 
 D  | 
 155  | 
 175  | 
 185  | 
 210  | 
 250  | 
 | 
 330  | 
 400  | 
 445  |    | 
| 
 最高使用压力  | 
 试验压力(水压)  |  
| 80°C以下之静流水 | 
80°C以下之脉动水 | 
 阀体  | 
 阀座  |  
| 14.0kg f/cm2 | 
10.0kg f/cm2 | 
 21.1kg f/cm2  | 
 15.4kg f/cm2  |    |