This standard is applicable to circular sight glasses with case in main power connection with metal melted glas according to DIN 7079-1 and borosilicate glass according to DIN 7080. Scope: Maximum allowable pressure of 10 bar and 16 bar at a maximum allowable temperature of 300 ? For maximum allowable temperatures less than -10 ?the AD-2000-MerkblattW 10 shall be considered.
DIN 28120:2004 history
2021DIN 28120:2021 Circular sight glass fittings with sight glasses in main power connection
1970DIN 28120 E:2020-05 Circular sight glass fittings with sight glasses in main power connection
2020DIN 28120 E:2020 Draft Document - Circular sight glass fittings with sight glasses in main power connection
2004DIN 28120:2004 Circular sight glasses with case in main power connection
0000 DIN 28120:2003
1970DIN 28120:1979 Circular sight glass fittings with sight glasses in main power connection