purpose Quick installation glass tube level gauge is an on-site level measuring instrument mainly used to directly indicate the liquid level height of various tanks, towers, underground storage tanks, and other open and pressurized containers in various industrial production processes. Main Technical Data 1. Nominal pressure: ≤ 1.6MPa 2. Medium temperature: ≤ 150 ℃ 3. Nominal diameter: 20mm 4. Nominal length: 500-3000mm 5. Main material: Q235-A carbon steel; 1Cr18Ni9Ti stainless steel