The SL2H/H2I11 is a normally open, spool-type logic valve in a cartridge. It works as a 2-way pressure compensator that keeps a constant pressure drop across a control valve, such as a proportional directional valve, and so a flow independent of the load. It can also be the main stage of a pilot operated pressure reducing valve.
SL2H-BP3: 7/8"-14 UNF cartridge, cavity BP3 (C-10-3S), up to 80 l/min
SL2H-CP3: 1-1/16"-12 UN cartridge, cavity CP3 (12-3S), up to 120 l/min
Maximum pressure: 350 bar
C versions, fixed spring: 3, 6 or 10 bar
S versions, adjustable with a 5 mm Allen key: 1.4 to 14 bar (140) or 2 to 20 bar (200)
NBR seals; zinc-nickel coated
Check the cavity (10-3S or 12-3S) and the spring pressure.
Source: Argo-Hytos SL2H-BP3/H2I11 datasheet, HA 5044, 03/2023; Argo-Hytos SL2H-CP3/H2I11 datasheet, HA 5088, 04/2024.