Yuken stackable hydraulic controls
Build a valve stack around the required pressure, flow and check functions. Compare the 03 Series families and confirm the complete circuit before ordering.
03 Series modular valves combine hydraulic control functions in a stacked assembly. The range covers pressure control, flow adjustment, check functions and connecting plates.
Select each module by its function and controlled line, then review the stack as a complete circuit. A matching mounting surface alone does not establish that every valve combination or stacking order is suitable.
The catalogue lists ISO 4401-AC-05-4-A as the mounting surface. Its stacking example uses DSG-03 directional valves, with the directional valve included in the stated stack count.
| Detail | 03 Series |
|---|---|
| Valve size | 3/8 |
| Maximum flow | 70 L/min. |
| Series maximum operating pressure | 250 Kgf/cm², subject to the selected valve's rating |
| Mounting surface | ISO 4401-AC-05-4-A |
| Number of stack | 1 to 5, including the solenoid operated directional valve |
Confirm the selected valve's pressure and flow ratings, adjustment range and the complete assembly's operating limits against the catalogue.
| Function | Model families | Controlled line |
|---|---|---|
| Relief | MBP-03 / MBA-03 / MBB-03 / MBW-03 | P / A / B / A&B respectively |
| Reducing | MRP-03 / MRA-03 / MRB-03 | P / A / B respectively |
| Sequence | MHP-03 | P |
| Counterbalance | MHA-03 / MHB-03 | A / B respectively |
Family names are not complete ordering codes. Pressure-adjustment ranges and design numbers depend on the selected model.
| Function | Model families | Selection detail |
|---|---|---|
| Throttle | MSP-03 | P-line |
| Check and throttle | MSCP-03 | P-line |
| Throttle and check | MSA-03 / MSB-03 / MSW-03 | A, B or A&B lines; confirm metre-in or metre-out configuration |
| Check | MCP-03 / MCT-03 / MCA-03 / MCB-03 / MCPT-03 | P, T, A, B or P&T lines respectively |
| Anti-cavitation | MAC-03 | Confirm the catalogue circuit symbol |
| Pilot operated check | MPA-03 / MPB-03 / MPW-03 | A, B or A&B lines respectively |
For throttle and check models, X and Y identify the catalogue metre-out and metre-in options. Verify both flow directions against the symbol.
The catalogue lists MMC-03 base plates, DSGM-03 sub-plates and MBK-03 mounting bolt kits. MDC-03 end plates and MDS-03 connecting plates provide additional circuit arrangements. Confirm the full plate code and bolt length for the selected stack.
Yuken gives specific stacking instructions for reducing, pilot operated check, and throttle and check valve combinations. Use those diagrams to establish the sequence and allow access for maintenance.
Provide hydraulic fluid and seal details with the enquiry. Phosphate ester fluids require the catalogue's special-seal configuration; consult Yuken before ordering it.
Selection support
A circuit drawing or clear photograph of the existing stack helps identify the required functions and interfaces.
Review individual ratings, circuit symbols, model codes, stacking diagrams and dimensions.
Send your valve codes and circuit details to Shree Hydraulics in Belagavi for product selection and quotation enquiries across India.
