铸铁闸门是以铸铁为原料制作的

Cast iron gate is the control equipment of various channels in water conservancy and hydropower projects, which is widely used in small and medium-sized water conservancy and hydropower, municipal water supply and drainage projects, aquaculture, farmland irrigation and other water conservancy projects.
铸铁闸门是水利水电工程中各种渠道上的节制性装备，普遍利用于中小型水利水电、市政给排水工程、水产养殖、农田浇灌等水利工程。

The cast iron gate is used to open and control the water level and regulate the flow.
铸铁闸门是用于开启掌握水位，调节流量的作用。

Cast iron gate is made of cast iron as raw materials, with corrosion resistance, good sealing, simple installation, long service life and other advantages, there are single, two-way water stop, water stop by itself after finishing or copper, stainless steel and other ways of water stop, the structure of ZFZ square cast iron gate, ZPS two-way water stop cast iron, ZHZ arc cast iron gate and so on.
铸铁闸门是以铸铁为原料制作的，具有耐腐蚀，止水密封好、安装简单、使用寿命长等优点，有单、双向止水，止水采用精加工后自身或镶铜、不锈钢等方式止水，结构形式有ZFZ方型铸铁闸门，ZPS双向止水铸铁、ZHZ弧形铸铁闸等。

Cast iron gate
铸铁闸门

Cast iron gate sandblasting gas operating pressure is less than 0.5MPa, equipped with 6m3/Sr air compressor.
铸铁闸门喷砂用气操作压力小少于0.5MPa，配备6m3/Sr空气压缩机。

When the flow air compressor is used, its displacement is 6m3/s, the rated pressure is 0.8MPa, and the power is 37kw.
采用流动式空气压缩机时，其排气量为6m3/s，额定压力为0.8MPa，功率为37kw。

The compressed air used for sandblasting must be treated by the cooling device and the oil-water separator to ensure that the compressed air is dry and oil-free.
喷砂处理所用的压缩空气必须经过冷却装置及油水分离器处理，以保证压缩空气的干燥、无油。

The oil-water separator must be cleaned regularly.
油水分离器必须定期清理。

The size of the nozzle during sandblasting is 6 ~ 8mm. During use, due to wear, the diameter of the hole increases by 25%.
喷砂时喷嘴尺寸为6～8mm，在使用过程中，由于磨损，孔口直径增大了25%时宜更换喷嘴。