PSV UNF 4 N S1 420/420-2 -A 2 H 16/16 A 131 B 131/E/UNF 2 -A 2 H 40/6 A 138 B 50/E/UNF 2 -A 2 H 25/25 A 138 B 138/E/UNF 2 -A 2 H 25/25 A 138 B 138/E/UNF 2 ZPL 2Z2 -A 8 H 40/40/EA/UNF 2 -A 2 H 40/40/EA/UNF 2 -E 4-G 24 (420 bar) customer p/n: 1170455 Proportional Spool Valves