FS型---法兰连接尺寸按GB2501的浮球式油，水舱空气管头；A、ASB、BSC、CSD、DSE、ESFS本体、上盖球墨铸铁QT400-15GB1348-88浮子、浮球不锈钢0Cr26NiMo2GB3280-94导向螺栓铝青铜QA19-2GB4429-84罩壳薄钢板Q235-AGB700-88不锈钢板0Cr26NiMo2GB3280-94滤网铜丝网H20GB5530-88)