特征 FEATURES：
·结构尺寸标准:DIN 3202 PART 3-K4
The face to face confirm:DIN 3202 PART3-K4
·精密铸造 Investment casting
·工作温度:234℃(480°F)
·工作压力:16/40kgf/cm2 Working Pressure:16/40kgf/cm2
材质表 MATERIALS LIST
| NO. | 部件名称 PART NAME | 材料 MATERIAL |
| 1 | 阀体 BODY | CF8M |
| 2 | 阀瓣 DISC | CF8M |
| 3 | 弹簧挡片 SPRING DISC | SS316 |
| 4 | 弹簧 SPRING | SS316 |
尺寸表 DIMENSIONS
| SIZE | d | A | B | C | D | L | WWEIGET/KGS | |
| NPS | DN | |||||||
| 15 | 1/2" | 15 | 35 | 45 | 43 | 53 | 16 | 0.1 |
| 20 | 3/4" | 23 | 42 | 100 | 53 | 63 | 19 | 0.16 |
| 25 | 1" | 25 | 46.2 | 125 | 57 | 73 | 22 | 0.28 |
| 32 | 11/4" | 32 | 61 | 140 | 74 | 84 | 28 | 0.52 |
| 40 | 11/2" | 40 | 70.5 | 140 | 82 | 94 | 32 | 0.70 |
| 50 | 2" | 50 | 80 | 140 | 91 | 107 | 40 | 1.10 |
| 65 | 21/2" | 65 | 100 | 140 | 112.5 | 126 | 46 | 1.58 |
| 80 | 3" | 80 | 112 | 140 | 125 | 144 | 50 | 1.76 |
| 100 | 4" | 100 | 135 | 140 | 149 | 164 | 60 | 3.30 |
| 150 | 5" | 150 | 197 | - | 216 | 220 | 106 | 9.82 |
开启压力表
| 压力方向 DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| 向上安装 | 25 | 25 | 25 | 27 | 29 | 29 | 31 | 32 | 33 |
| 向下安装 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| 水平安装 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 26 | 27 |
注：1bar=1000mbar=1.02kgf/cm2=14.5PSI
敬请注意：止回阀必须安装在离泵出口大约5xDN以外位置，避免产生振荡。
