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- Check Valve
- Poppet Style
- Cartridge Only Port Type
- Pilot Operated Operation
| Operation | Pilot Operated |
| Pressure [Max] | 5000 psi |
| Seal Material | Buna-N |
| Compatible Fluids | MIL–H–5606, SAE 10, SAE 20, etc |
| Installation | Screw-in Cartridge |
| Pilot Piston Seal | No |
| Style | Poppet |
| Temperature Range [Min] | -40 °F |
| Housing | No |
| Model No. | 4CK90-1-S |
| No. of Housing Ports | 3 |
| Cavity | AXP12336 |
| No. of Valve Ports | 3 |
| Port Type | Cartridge Only |
| Pilot Ratio | 4:1 |
| Temperature Range [Max] | 248 °F |
| Leakage | 0.25 cc/min |
| Recommend Filtration Level | 18/16/13 microns |
| Series | 4CK90 |
| Flow [Max] | 23 gal/min |
| Weight | 0.061 LB |