Yuken in-line check valves
CIT Series in-line check valves
Compare CIT-02, CIT-03, CIT-06 and CIT-10 valves. Select the connection size and cracking pressure for your hydraulic circuit.
Allow flow in one direction

CIT in-line check valves allow flow in one direction and prevent reverse flow. The T designation identifies a threaded connection.
Cracking pressure is the pressure required to begin opening the valve. Select this setting along with the rated flow, thread size and pressure-drop characteristics.
For a replacement, send the full model code and a nameplate photograph. Confirm the inlet and outlet orientation from the manufacturer drawing before installation.
Compare CIT sizes and connections
| Model family | Rated flow* | Thread size | Maximum operating pressure |
|---|---|---|---|
| CIT-02-※-2080 | 12 L/min | 1/4 BSP.F | 210 Kgf/cm² |
| CIT-03-※-2080 | 30 L/min | 3/8 BSP.F | 210 Kgf/cm² |
| CIT-06-※-2080 | 80 L/min | 3/4 BSP.F | 210 Kgf/cm² |
| CIT-10-※-2080 | 200 L/min | 1 1/4 BSP.F | 210 Kgf/cm² |
*Rated flow is approximate at a free-flow pressure drop of no more than 3 Kgf/cm², fluid specific gravity of 0.85, kinematic viscosity of 20 cSt and cracking pressure of 0.35 Kgf/cm². Review the catalogue pressure-drop curves for the selected valve and setting.
Choose the cracking pressure
| Model-code option | Cracking pressure |
|---|---|
| 5 | 0.35 Kgf/cm² |
| 30 | 2.0 Kgf/cm² |
| 50 | 3.5 Kgf/cm² |
| 75 | 5.0 Kgf/cm² |
For example, CIT-03-30-2080 identifies size 03 with a cracking pressure of 2.0 Kgf/cm². The cracking-pressure code is separate from the valve’s maximum operating-pressure rating.
Selection support
Send the complete CIT requirement
Share the model code and circuit conditions so the size and cracking-pressure option can be checked before quotation.
- Full CIT model code or nameplate photograph
- Thread size and installation space
- Required flow and operating pressure
- Cracking pressure and permitted pressure drop
- Flow direction, hydraulic fluid and viscosity
- Quantity and required timing
CIT technical catalogue
Review in-line check-valve ratings, model codes, dimensions and pressure-drop curves.
Enquire about a CIT check valve
Send your model code, operating conditions and quantity to Shree Hydraulics.