... installation and maintain.anti-interfere, anti-impurity, anti-acid, corrosion resistant, portability.Specifications:A,SBL digital flow meter ... and maintain.13,anti-interfere, anti-impurity, anti-acid, corrosion resistant, portabilityTechnical data:Nominal Diameter:6-4000mmNominal ... and fast measurementSmall pressure loss,only about 1/2ΔP of standard orifice.Explosion-proof sign: Intrinsically safe ...