PSV UNF 42-3 -A2 H 63/63 S/E/UNF 3 -A5 H 80/80 S/E/UNF 3 -A2 H 25/25 S/HE UNF/UNF 3 -A2 H 25/25 S/HE UNF/UNF 3 -A2 H 25/25 A 108 B 163/EA /3 AL-4-B7/108-BL-4-B7/163 -ZPL 3 Z 3 -A2 H 63/63 A 140 B 200/HE UNF /UNF 3 -E 20 UNF-G 24 Proportional Spool Valves