Cartridge Check Valve 1-11/16-12 UN 2A
High-capacity cartridge check valve designed for manifold or valve-block integration. It provides reliable free-flow in one direction while preventing reverse flow, rated to handle up to 120 l/min — making it suitable for high-demand mobile and industrial hydraulic circuits.
The cartridge installs directly into a standard machined cavity, keeping installation compact and minimising external plumbing.
Key Specifications
- Type: Cartridge check valve
- Thread: 1-11/16-12 UN 2A | Tightening torque: 45–50 Nm (HEX 32)
- Max. pressure: 350 bar
- Max. flow: 120 l/min
- Cracking pressure: 1 bar (standard)
- Cavity code: DO-590.CVU.120
- Seal options: NBR 70 Shore A (standard) | Viton (on request)
- External finish: Zinc plated
- Fluid temperature: -20°C to +90°C
- Filtration standard: ISO 4406
| Thread | Max. Pressure (bar) | Max. Flow (l/min) |
| 1-11/16-12 UN 2A | 350 | 120 |






