进口蒸汽止回阀-德国多尔德DOLDR品牌

进口蒸汽止回阀概述Overview of imported steam stop valve

DOLDR(逆止阀)导热油、蒸汽止回阀为自动密封阀门，依靠介质力开、闭阀瓣，防止介质倒流,适用于蒸汽、冷热水、导热油、氨气、天然气等介质 DOLDR (Check valve) Heat transfer oil and steam check valves are automatically sealed valves that rely on medium force to open and close the valve disc to prevent medium backflow. They are suitable for media such as steam, hot and cold water, heat transfer oil, ammonia, natural gas, etc

进口蒸汽止回阀主要性能 Main performance

(逆止阀)进口导热油，蒸汽止回阀为自动密封阀门，依靠介质本身流动而自动开、闭阀瓣，有效防止介质倒流阀瓣设弹簧装置,阀门既可水平安装，也可垂直安装 RETZ heat transfer oil and steam check valve are self sealing valves, which automatically open and close the valve disc depending on the flow of the medium itself, effectively preventing the medium from flowing back. The valve disc is provided with a spring device, and the valve can be installed horizontally or vertically

进口蒸汽止回阀性能特点 Performance characteristics

密封面耐磨、耐腐、抗摩擦、使用寿命长 The sealing surface is wear-resistant, corrosion-resistant, friction resistant and has long service life

铸件采用覆膜砂铸造技术表面平整，光洁度可达１２．５～２５微米同时，铸件机械性能良好，０８％以上无气、砂眼和裂纹等缺陷，有效壁厚达标 RETZ The casting adopts coated sand casting technology, with a smooth surface and a finish of 12.5-25 microns. At the same time, the casting has good mechanical properties, and more than 08% of the casting is free of defects such as air, sand holes and cracks, and the effective wall thickness is up to the standard

进口蒸汽止回阀主要零件材料 Main parts and materials