| |  | 微阻球形止回阀 | | 型号:HQ44X,HQ45X | | 口径:DN50-DN1000 | | 压力:1.0～1.6MPa | | 材质:铸铁、球铁、铸钢 |  | | |  | HQ44X，HQ45X微 | | 型号:HQ44X，HQ45X | | 口径:DN50-DN1000 | | 压力:1.0～1.6MPa | | 材质:铸钢，铸铁 | | |
|  | HH44X、HH44T、 | | 型号:HH44X、HH44T、HH44H | | 口径:DN40-DN800 | | 压力:1.0mpa～6.4mpa | | 材质:铸钢，铸铁，不锈钢 | | | |  | HH48X微阻缓闭蝶型消 | | 型号:HH48X | | 口径:DN200-DN1400 | | 压力:1.0mpa-6.4mpa | | 材质:铸铁，铸钢 | | | |  | HH46X微阻缓闭蝶式止 | | 型号:HH46X、HH48X、HH49X | | 口径:DN40-DN1000 | | 压力:1.0mpa～2.5mpa | | 材质:铸铁，铸钢 | | | |  | 铜丝口止回阀H14W | | 型号:H14W | | 口径:DN15-DN50 | | 压力:1.6-2.5MPA | | 材质:黄铜 | | | | | |  | H44H~H44W旋启式 | | 型号:H44H~H44W | | 口径:DN40-DN500 | | 压力:1.6mpa-10.0mpa | | 材质:铸钢，不锈钢 | | | |  | H41H碳钢升降式止回阀 | | 型号:H41H | | 口径:DN32-DN200 | | 压力:1.6mpa-16.0mpa | | 材质:铸钢，不锈钢 | | | |  | 内螺纹不锈钢旋启式止回阀 | | 型号:H14W | | 口径:DN15-DN80 | | 压力:1.6mpa-6.4mpa | | 材质:不锈钢304.316 | | | |  | 碳钢直通升降式止回阀H4 | | 型号:H41H | | 口径:DN32-DN200 | | 压力:1.6mpa-10.0mpa | | 材质:碳钢，不锈钢 | | | |  | H42Y升降式高压止回阀 | | 型号:H42Y | | 口径:DN10-DN200 | | 压力:16.0mpa-32.0mpa | | 材质:铸钢，不锈钢 | | |
