概述
RV 止回阀
GEA check valves are open autonomously by the pressure which is exerted by the working medium upon the valve disc. They start to open at a differential pressure of 0.01 to 0.05 bar and are fully open between 0.1 and 0.2 bar. As soon as the flow is interrupted or the flow direction is reversed, the valve closes automatically. A built-in damping device makes this type of valve especially suitable in cases where capacity requirements fluctuate. GEA check valves are designed for installation in in industrial heating and refrigeration systems. They are installed on the pressure or suction side of compressors or in pipes in which only one direction of flow is intended.
GEA AWP止回阀是自动启动的锁定装置。它们通过工作介质施加在阀板上的压力而打开。一旦流量中断或流向反转，阀门就会自动锁定。内置减振装置使这种阀门特别适用于功率需求变化很大的情况。GEA AWP止回阀适用于安装在工业制冷系统的制冷剂循环中。它们安装在压缩机的压力侧或吸入侧，或安装在只允许一个流动方向的管道中。GEA AWP止回阀无需维护。阀门功能性能中出现的任何缺陷都可以修复。
技术特征
- 采用钢或不锈钢
- 根据德国 DIN EN12284、AD2000 系列 W 选择阀体材料
- 工作介质：符合EN 378-1的乙二醇基冷盐水制冷剂, 例如NH3、R22、R134a 以及与冷冻机油的混合物；中性、气体和液体介质；乙二醇基冷盐水
- 安装位置：水平，垂直（用于向上流动方向）
| RV 止回阀 | |
| 设计 | 直线型或角型 |
| 材料 | 钢或不锈钢 |
| 标称尺寸 | DN 6-150 |
| 标称压力水平 | PS 25, PS 40, PS 63 |
| 温度范围 | -60 °C 至 +150 °C |
| 连接 | 对焊端 DIN, ANSI 法兰端 DIN, ANSI 焊接端 螺纹端 |
Check Valve type RV
