PAB423- 1 obsolete, replaced by Typ PAB 523-I;HEAT EXCHANGER;;;; PAB 423-I Typ PAB 523-I DN8PN350D DN250 - ANSI-CLASS 600-RF (0855227) 855227 9157340 MATERIAL-TEST CERTIFICATE 855228 EDS V 86116 279.995 570.540 FSA V.300.200 obsolete, replaced by 057.0540;;;;; 9.157.377 BHG V 315.720-1 DN 020 PN 315 (008.0844) bonnet for valve DN 040 PN 315