... four grooves level gauge glass also named Sight Glass,Reflex Glasses,Level Gauge Glass,Spares for level gauge,Boiled Gauge Glass,Boiled Parts,ectIts made ... temperature: 260°C, Working pressure: 4.4MPa.Level Gauge Glass Physical Property1. Appearance1) Air bubble:Diameter≤0.5mm, in ... dont allow have palpable filaceous and pectinate stripe on the sight plane.4) Cockle: In the side face, dont allow ...