概述
RVZ 止回阀
Check valves 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. The closing function is supported by the elastic force of the spring or by the valve disc’s own weight. RVZ check valves are designed for installation between two counterflanges that are attached directly to the valve housing. With this design the medium flow is not being diverged as it is the case for other check valve types. GEA check valves are designed for installation in the refrigerant circulation of industrial 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.
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
- 对于不同的安装位置和流动方向，可带和不带减振器
| RVZ 止回阀 | |
| 设计 | 直线型或角型 |
| 材料 | 钢或不锈钢 |
| 标称尺寸 | DN 40-350 |
| 标称压力水平 | PS 25, PS 40, PS 63 |
| 温度范围 | -60 °C 至 +150 °C |
| 连接 | 符合AWP标准的法兰连接 |
| 其他 | 热气连接 直线轴承 排油 |
Check Valve type RVZ
