Check Valves | RHD/RHZ/RHV/RHF
The Hyloc RHD/RHZ/RHV/RHF series consists of inline-mounted, poppet-type check valves (also known as non-return valves) designed for high-pressure hydraulic systems. Their primary function is to allow mineral oil to flow freely in one direction (indicated by an arrow on the valve body) while providing a leak-proof closure in the opposite direction.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The Hyloc RHD/RHZ/RHV/RHF series consists of inline-mounted, poppet-type check valves designed to ensure fluid flows in only one direction while maintaining a leak-free seal in the opposite direction. These valves are primarily used in hydraulic systems using mineral oil to prevent backflow and maintain system pressure.
| Feature / Specification | Details |
|---|---|
| Valve Function | Poppet-type, leak-free check valve (Non-return) |
| Mounting Types | RHD: Tube-to-Tube |
| Size Range (NG) | 06, 08, 10, 12, 15, 20, 25, 30 |
| Standard Connections | Metric (ISO 8434-1) or BSP Threaded |
| Max Operating Pressure | Up to 315 bar (varies by size/series) |
| Cracking Pressures | 0.5, 1.5, 3.0, and 5.0 bar (Standard is 0.5 bar) |
| Hydraulic Fluid | Mineral oil (H-LP or HL fluids) |
| Viscosity Range | 10 to 380 cSt |
| Temperature Range | -20°C to +70°C |
| Required Cleanliness | ISO 4406 20/18/15 (or better) |
| Main Material | Steel body with hardened and ground poppet |
| Flow Orientation | Unidirectional (Free flow A → B; Blocked flow B → A) |










