| screw-in cartridge valves | 4ck301s check cart pilot op | ||
| pilot port size | -1 : internal | ||
| Seal | -s : nitrile (for use with most industrial hydraulic oils) | ||
| body material | aluminum |
| Series | 4ck30 : 30 l/min [8 usgpm];350 bar [5000 psi] pilot to open check valve - cartridge only | ||
| Port size | none | ||
| pilot piston seal | (_) no pilot seal | ||
| special features | none |
