 

产品用途
H72H-160、H72H-320 型对夹立式止回阀是一种依靠介质本身的流动而自动启、闭阀瓣并用来阻止介质逆向流动的自动阀门。
性能参数
| 
								型号 
							 | 
								H72H-160
							 | 
								H72H-320
							 | |
| 
								工作压力(MPa) 
							 | 
								16.0
							 | 
								32.0
							 | |
| 
								适用温度(℃) 
							 | 
								≤200
							 | ||
| 
								适用介质 
							 | 
								氮氢混合气、氨液、铜氨液、碱液等
							 | ||
| 
								材料 
							 | 
								法兰、阀盖 
							 | 
								碳钢
							 | |
| 
								阀瓣、阀座 
							 | 
								不锈钢
							 | ||
| 
								弹簧 
							 | 
								硅锰钢
							 | ||
| 
								O形圈 
							 | 
								丁腈橡胶
							 | ||
| 
								阀体、双头螺栓 
							 | 
								铬钢
							 | ||
| 
								螺母 
							 | 
								碳钢
							 | ||

| 公称压力PN | DN | D | M | D2 | Do | Lo | D | T | WT(Kg) | 
| 16.0MPa | 15 | 95 | M24x2 | 20 | 16 | 145 | 42 | 60 | 5 | 
| 25 | 105 | M33x2 | 28 | 23 | 155 | 50 | 65 | 10 | |
| 32 | 115 | M42x2 | 37 | 29 | 175 | 62 | 80 | 15 | |
| 40 | 165 | M52x2 | 42 | 39 | 215 | 72 | 90 | 20 | |
| 50 | 165 | M64x2 | 58 | 50 | 245 | 88 | 115 | 30 | |
| 65 | 200 | M80x2 | 73 | 65 | 300 | 115 | 140 | 45 | |
| 60 | 225 | M100x2 | 93 | 80 | 345 | 135 | 160 | 60 | |
| 32.0MPa | 15 | 105 | M33x2 | 27 | 17 | 155 | 50 | 65 | 5 | 
| 25 | 115 | M42x2 | 35 | 22 | 175 | 62 | 80 | 10 | |
| 32 | 135 | M48x2 | 41 | 30 | 200 | 72 | 90 | 15 | |
| 40 | 165 | M60x3 | 58 | 42 | 245 | 88 | 115 | 20 | |
| 50 | 200 | M80x3 | 70 | 58 | 300 | 115 | 140 | 30 | |
| 65 | 215 | M100x3 | 90 | 68 | 345 | 135 | 160 | 45 | |
| 80 | 260 | M125x4 | 112 | 85 | 395 | 155 | 185 | 60 |