锅炉用轻液式低地位水位表,因轻液能在现场很容易、很方便的配制;同时又具有显示比较灵敏的特点,故一般锅炉上常采用此种水位表。我厂就是采用此种水位表。可是,由于轻液成份是由机油,煤油,汽油等混合而成,表管采用φ18×3无缝管,内径仅有12毫米,充装轻液口又小,尤其是往圆柱体内充灌,因机油表面张力大,容易结成很薄的一层油膜封 Low light water level boiler water table, because light liquid can be easily in the field, very convenient preparation; the same time with a more sensitive display features, it is often used on the boiler such water level meter. I plant is the use of such water level meter. However, due to the composition of light liquid from the oil, kerosene, gasoline and other mixed together, the table using φ18 × 3 seamless tube, the inner diameter of only 12 mm, filled with light liquid port and small, especially to the cylinder filling, Due to the oil surface tension, easy to form a thin layer of film seal