| 产品特性：球墨铸铁 | 品牌：RETZ瑞茨 | 型号：进口球墨铸铁止回阀 |
| 材质：球墨铸铁 | 连接形式：法兰 | 加工定制：是 |
| 结构形式：旋启式 | 公称通径：DN50~500mm | 适用介质：水 油 气 |
| 形态：旋转式 | 压力环境：常压 | 标准：美标 |
| 流动方向：双向 | 驱动方式：手动 | 工作温度：常温 |
| 类型(通道位置)：直通式 | 规格：2”~ 20 |
品牌：RETZ瑞茨/美国，我们一直致力于流体控制领域的持续创新，始于2005……
球墨铸铁止回阀，铸铁逆止阀阀芯在流体压力的作用下被推开，呈流通状，但倒流时，阀芯在背压作用下与阀体的阀座密切接触，防止倒流 Ductile iron check valves, where the core of the cast iron check valve is pushed open under the action of fluid pressure, forming a flowing state. However, during backflow, the core is in close contact with the valve seat of the valve body under back pressure to prevent backflow
进口球墨铸铁止回阀结构特点
1.旋启式止回阀性能说明 Performance description of swing check valve
将圆盘状的阀芯一端制成“轴销形式”，阀芯可自由旋启的这样一种阀，其压力损失小，流体易于流动。不仅可用于水平配管，也可用于纵向配管（从下向上流动）retz品牌 One end of the disc shaped valve core is made into a "pin type", and the valve core can swing freely. The pressure loss is small, and the fluid is easy to flow. It can be used not only for horizontal piping, but also for vertical piping (flowing from bottom to top)
性能规范 Performance Specifications
制造与验收：MSS SP-71的规定.
结构长度：ANSI B16.10的规定
连接法兰尺寸：ANSI B16.1.
压力-温度：ASME B16.34
压力：150LB
温度基准：232℃：0.86MPa、175℃：0.7MPa
规格尺寸：2”~ 20” (DN50~500)
使用介质：水.油.气
2.升降式止回阀性能说明 Performance description of lift check valve
属于将截止阀上的阀杆、手柄、其它开闭操作部分卸下，加盖后形成的构造。 retz品牌 It belongs to the structure formed after removing the valve stem, handle and other opening and closing operation parts on the stop valve and capping them. Large fluid impedance, mainly products with small diameter
性能规范 Performance Specifications
设计符合DIN3356
结构长度符合BS EN558-1的规定.
法兰连接钻孔尺寸按BS EN1092
压力：PN16
温度基准：232℃：0.86MPa、175℃：0.7MPa
规格尺寸：2”~ 20” (DN50~500)
使用介质：水.油.气
