The level indicator is designed for visual determination of the boundary of separation of liquid and gaseous substances with different physical and chemical properties in vessels (tanks, reservoirs and apparatuses) operated: in climatic conditions B3.1 according to GOST 15150 at ambient air temperature over -20 to +50 C; in all branches of economic activity, except nuclear industry; at working pressure less than 0,05 MPa with flammable, oxidising, combustible, explosive and toxic liquid substances; at working pressure up to 0,4 MPa with other liquid substances in vessels with capacity less than 2,5 m3.Operating medium - water and aqueous solutions of salts, ethyl and methyl alcohol, aldehydes; diesel fuel, paraffin, mineral motor oils, as well as other liquids that are neutral, slightly or moderately aggressive to the product materials under the specified operating conditions. Maximum temperature of working environment +70 C
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