Direct Acting Relief Valve (Cartridge)
A compact cartridge-format direct acting relief valve, screwing into a standard machined cavity to provide system pressure protection or pressure limiting within a manifold block. It maintains a set pressure ceiling — opening to divert excess flow to tank — across four overlapping pressure ranges from as low as 5 bar up to 350 bar.
Three adjustment options let you match the valve to the installation: socket screw for tool-adjusted settings, tamper-resistant cap for fixed-field installations, or handknob with locknut for operator-accessible adjustment.
Key Specifications
- Type: Direct acting cartridge relief valve
- Thread: 3/4-16 UNF-2A
- Max. pressure: 350 bar
- Max. flow: 20 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-590.011.22.10
- Adjustment: Socket screw (standard) | Tamper cap | Handknob with locknut
- Seal options: NBR (standard) | Viton on request
- External finish: Zinc plated
| Thread (P) | Cavity Code | Max. Pressure (bar) | Max. Flow (l/min) | Setting Range | Std Setting (bar) |
| 3/4-16 UNF-2A | DO-590.011.22.10 | 350 | 20 | X: 5-50 bar | 50 |
| 3/4-16 UNF-2A | DO-590.011.22.10 | 350 | 20 | Y: 30-100 bar | 100 |
| 3/4-16 UNF-2A | DO-590.011.22.10 | 350 | 20 | Z: 50-210 bar | 200 |
| 3/4-16 UNF-2A | DO-590.011.22.10 | 350 | 20 | W: 100-350 bar | 300 |
