This standard is applicable to circular sight glass fittings with sight glasses in main power connection with maximum allowable temperature according to: - DIN 7079-1, glass-to-metal fused sight glasses up to 280 °C (depending on used metal ring between 250 °C and 300 °C); - DIN
DIN 28120:2021 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