進(jìn)口蒸汽止回閥概述Overview of imported steam stop valve

DOLDR(逆止閥)導(dǎo)熱油、蒸汽止回閥為自動密封閥門，依靠介質(zhì)力開、閉閥瓣，防止介質(zhì)倒流,適用于蒸汽、冷熱水、導(dǎo)熱油、氨氣、天然氣等介質(zhì) 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

進(jìn)口蒸汽止回閥主要性能 Main performance

(逆止閥)進(jìn)口導(dǎo)熱油，蒸汽止回閥為自動密封閥門，依靠介質(zhì)本身流動而自動開、閉閥瓣，有效防止介質(zhì)倒流閥瓣設(shè)彈簧裝置,閥門既可水平安裝，也可垂直安裝 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

進(jìn)口蒸汽止回閥性能特點(diǎn) Performance characteristics

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

鑄件采用覆膜砂鑄造技術(shù)表面平整，光潔度可達(dá)１２．５～２５微米同時，鑄件機(jī)械性能良好，０８％以上無氣、砂眼和裂紋等缺陷，有效壁厚達(dá)標(biāo) 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

進(jìn)口蒸汽止回閥主要零件材料 Main parts and materials