PSV UNF 44/180-3 -A2 O 16/16A 52 B 69/EA/UNF 3 AN 62 BN 79 -A2 O 63/63A 138 B 69/EA/UNF 3 AN 148 BN 79 -A2 O 16/16A 52 B 69/EA/UNF 3 AN 62 BN 79 -A2 O 16/16A 52 B 69/EA/UNF 3 AN 62. BN 79 -E 4 UNF-G 24 EX ATEX-Dokumentation Proportional Spool Valves