H11W不锈钢内螺纹止回阀特点：
1、 螺纹可按BSPT、BSP、NPT、DIN259/2999生产
H11W不锈钢升降式内螺纹止回阀主要参数
| SIZE | d | L | H | |
| 1/2" | 15 | 65 | 44 | |
| 3/4" | 20 | 80 | 53 | |
| 1" | 25 | 90 | 58 | |
| 1-1/4" | 32 | 105 | 62 | |
| 1-1/2" | 40 | 120 | 73 | |
| 2" | 50 | 141 | 78 | |
| ITEM | PAPTS | 部件 | MATERIAL材质 |
| 1 | CAP | 阀盖 | CF8/CF8M |
| 2 | BODY | 阀体 | 304/316 |
| 3 | PETAL | 阀瓣 | 316 |
| 4 | PIN | 圆柱销 | CF8/CF8M |
| 5 | GASKET | 密封垫 | PTFE |
| 6 | GASKET | 密封垫 | 304/316 |
| 7 | BOLT | 螺栓 | PTFE |
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