The glass type you require depends on environmental conditions (temperature, pressure, aggressive media.)The basic types of materials used for the manufacture of sight glasses are:soda-lime glass – wi...
MOUNTING:The glass discs are sized for being mounted into standard circular sightglass fittings to DIN 28120 / 28121 or similar, circular sightglass fittings for PN 0 (lightweight version) and also f...