| screw-in cartridge valves | 4ckd901s3 check cart pilot op | ||
| pilot port size | -1 : internal | ||
| Seal | -s : nitrile (for use with most industrial hydraulic oils) | ||
| body material | aluminum |
| Series | 4ckd90 : 90 l/min [24 usgpm];350 bar [5000 psi] pilot to open check valve- catridge only | ||
| Port size | none | ||
| pilot piston seal | -3 : pilot seal required | ||
| special features | none |
