PSV UNF 21/D315-2 -A 2 H 40/40 A200 B 200/E0A/UNF 2 AL-0-A 4/200 -BL-0-A 4/200 -A 2 H 40/40 A 200 B 200/E0A/UNF 2 AL-0-A 4/ 200 -BL-0-A 4/ 200 -A 2 H 16/16 A 200B 200/E0A/UNF 2 AL-0-A 4/ 200 -BL-0-A 4/ 200 -A 2 H 16/16 A 200 B 200/E0A/UNF 2 AL-0-A 4/ 200 Proportional Spool Valves