Direct Acting Relief Valve (Cartridge-80 l/min)
The largest in the cartridge range, handling up to 80 l/min in an M26x1.5 thread. It suits main-line relief applications in mid-to-large manifold circuits — mobile plant hydraulics, industrial presses, and power unit protection.
The four pressure ranges span 5–350 bar, covering almost every mobile and industrial hydraulic system requirement in a single product family.
Key Specifications
- Type: Direct acting cartridge relief valve
- Thread: M26x1.5
- Max. pressure: 350 bar
- Max. flow: 80 l/min
- Setting ranges: X: 5–50 bar | Y: 30–100 bar | Z: 50–210 bar | W: 100–350 bar
- Standard settings: 50 / 100 / 200 / 300 bar (at 5 l/min)
- Cavity code: DO-590.003.28.10
- Adjustment: Socket screw (standard) | Tamper cap | Handknob with locknut
- Seal options: NBR (standard) | Viton on request
- External finish: Zinc plated
- Fluid temperature: -20°C to +90°C
| Thread (P) | Cavity Code | Max. Pressure (bar) | Max. Flow (l/min) | Setting Range | Std Setting (bar) |
| M26x1.5 | DO-590.003.28.10 | 350 | 80 | X: 5-50 bar | 50 |
| M26x1.5 | DO-590.003.28.10 | 350 | 80 | Y: 30-100 bar | 100 |
| M26x1.5 | DO-590.003.28.10 | 350 | 80 | Z: 50-210 bar | 200 |
| M26x1.5 | DO-590.003.28.10 | 350 | 80 | W: 100-350 bar | 300 |








