Pilot ratio, setting and seals
The 3:1 and 8:1 versions use cavity YC21A. The catalogue distinguishes their spring and setting options. Port 4 is the drain connection; include the drain arrangement with your circuit details.
Yuken cartridge valves
YC03 drained load holding cartridge valves with 3:1 and 8:1 pilot-ratio options. Match the complete designation and cavity to the hydraulic circuit.

A check valve permits flow from the directional-valve connection at port 2 towards the load at port 1. A pilot-assisted relief section controls return flow from port 1 to port 2. Pressure at pilot port 3 influences the effective relief setting.
YC03 drained load holding cartridge valves with 3:1 and 8:1 pilot-ratio options. Match the complete designation and cavity to the hydraulic circuit.
Use the model comparisons below with the linked manufacturer catalogue. Send the complete designation and application details for selection support.
| Pilot ratio | Cavity | Maximum flow (lpm) |
|---|---|---|
| 3:1 | YC21A | 60 |
| 8:1 | YC21A | 60 |
Ratings depend on the complete model and operating conditions. Consult the catalogue drawings and model designation before selection.
The 3:1 and 8:1 versions use cavity YC21A. The catalogue distinguishes their spring and setting options. Port 4 is the drain connection; include the drain arrangement with your circuit details.
The catalogue includes YC03 cartridges and YM-C03 versions with valve body. Confirm the body model, port connections and cavity drawing when requesting an assembly.
Selection support
Include the valve designation, cavity drawing and operating requirements to help confirm the correct configuration.
Specifications, model designations, cavity drawings and configuration details for YC03 Drained Load Holding Cartridge Valves.
Browse load holding, pressure reducing and check-valve families with their manufacturer catalogues.
Send your model code and application details to Shree Hydraulics in Belagavi for selection and quotation enquiries across India.