PSV UNF 441/225-3 -A2 H 40/40A 140 B 140S/EAG/UNF 3 -A2 H 40/40A 210 B 210 S/EAG/UNF 3 -A2 H 40/40A 140 B 140S/EAG/UNF 3 -A2 H 40/40A ... B ...S/EAG/UNF 3 -A2 H 40/40A 50 B 140S/EAG/UNF 3 -A2 H 40/40A 210 B 210 S/EAG/UNF 3 -A2 H 40/40A 210 B 210S/EAG/UNF Proportional Spool Valves