Drain connection
The catalogue requires the drain port to connect directly to the tank, with drain back pressure kept close to atmospheric pressure. Review the complete installation instructions before use.
Yuken pressure reducing valves
RT, RG, RCT and RCG pressure reducing valves
Set a secondary circuit pressure below the main circuit pressure. Compare mounting types and choose whether free reverse flow is required.
03 / 06 / 10Three valve sizes
210 Kgf/cm²Maximum operating pressure
B / C / HPressure adjustment options
RT / RG / RCThreaded, sub-plate and check-valve variants
Choose the pressure-control function
RT and RG pressure reducing valves set the pressure in a secondary hydraulic circuit below the pressure in the main circuit. The remote control port also allows remote pressure control.
RCT and RCG add a check valve that permits free flow from the secondary side to the primary side. This reverse-flow function is a key distinction when selecting or replacing a valve.
RT and RCT use threaded connections. RG and RCG use sub-plate mounting. The manufacturer asks buyers to consult Yuken about availability of threaded models.
Compare the four families
| Family | Function | Mounting | Sizes |
|---|---|---|---|
| RT | Pressure reducing | Threaded connection | 03, 06, 10 |
| RG | Pressure reducing | Sub-plate | 03, 06, 10 |
| RCT | Pressure reducing and check | Threaded connection | 03, 06, 10 |
| RCG | Pressure reducing and check | Sub-plate | 03, 06, 10 |
All four catalogue families have a maximum operating pressure of 210 Kgf/cm². Flow capacity depends on valve size and the secondary pressure setting.
Flow capacity at the selected pressure
| Valve size | Setting pressure, Kgf/cm² | Maximum flow, L/min. |
|---|---|---|
| 03 | 7 - 10 | 40 |
| 03 | 10 - 205 | 50 |
| 06 | 7 - 10 | 50 |
| 06 | 10 - 15 | 100 |
| 06 | 15 - 205 | 125 |
| 10 | 7 - 10 | 130 |
| 10 | 10 - 15 | 180 |
| 10 | 15 - 105 | 220 |
| 10 | 105 - 205 | 250 |
These catalogue maximum flow values apply at a primary pressure of 210 Kgf/cm² and are shared by RT, RG, RCT and RCG. Review the flow-versus-secondary-pressure curves for the selected adjustment range and operating point.
Pressure adjustment ranges
| Symbol | Pressure adjustment range |
|---|---|
| B | 7 - 70 Kgf/cm² |
| C | 35 - 140 Kgf/cm² |
| H | 70 - 205 Kgf/cm² |
Special seals
An F prefix identifies special seals for phosphate ester type fluids. Consult Yuken before ordering these seals and include the fluid details with your enquiry.
Sub-plates for RG and RCG
| Size | Sub-plate | Thread size |
|---|---|---|
| 03 | HGM-03-2080 / HGM-03X-2080 | 3/8 BSP.F / 1/2 BSP.F |
| 06 | HGM-06-2080 / HGM-06X-2080 | 3/4 BSP.F / 1 BSP.F |
| 10 | HGM-10-2080 / HGM-10X-2080 | 1-1/4 BSP.F / 1-1/2 BSP.F |
Match the complete model, port arrangement, locating pin and mounting drawing. The catalogue specifies the installation orientation for reducing-and-check valves; confirm it before assembly.
Selection support
Send primary and secondary pressure details
Include the required reverse-flow function so the appropriate reducing or reducing-and-check family can be reviewed.
- Complete RT, RG, RCT or RCG model code
- Primary pressure and required secondary pressure
- Operating flow and valve size
- Whether free reverse flow is required
- Mounting, drain arrangement and fluid details
- Quantity, sub-plate requirement and circuit drawing
Pressure reducing valve catalogue
Review RT and RG models, RCT and RCG check variants, pressure-flow curves, mounting drawings and installation instructions.
Enquire about a pressure reducing valve
Send your model and circuit details to Shree Hydraulics in Belagavi for product selection and quotation enquiries across India.