OLS high-flow priority valves
Our OLS high-flow priority valves are used to give a steering system the highest priority when both it and the working hydraulics are supplied with oil from a single pump. These valves are used in conjunction with Danfoss steering units in load-sensing steering systems with pump flows between 40 l/min and 320 l/min [10.6 US gal/min and 84.5 US gal/min] and pressures up to 350 bar [5,076 psi].
Features and benefits
- High performance and wide flow range
- Low pressure drop and a low noise level
- Available in an OLSA version for flange mounting on the steering unit and an OLS version for in-line installation between pump and steering unit
- Common supplier for steering units and priority valves brings best performance; OSP and OLS are designed to match
- Best-in-class integration even in tight areas due to compact design and easy connectivity
Applications
- Forklifts
- Mowers and sweepers
- Tractors and combine harvesters
- Wheel loaders
- Excavators and graders
- Sprayers
- Container trucks
Specifications
| Ambient temperature | -30°C to 60°C [-22°F to 140°F] |
| Permissible surface temperature (non-activated unit) | 120°C [248°F] for 20 minutes |
| Permissible oil temperature | -30°C to 100°C [-22°F to 212°F] |
| Recommended oil temperature | 30°C to 60°C [86°F to 140°F] |
| Oil viscosity | 10 mm2/s to 1000 mm2/s [59 SUS to 4,629 SUS] |
| Recommended oil viscosity | 12 mm2/s to 80 mm2/s [66 SUS to 370 SUS] |
| Maximum contamination (ISO 4406) | ON/OR 22/20/17 LS/CN/PB 21/19/16 |
| Maximum temperature difference from other hydraulics | Δ10°C [Δ18°F] |
| Normal steering torque | 0.8 Nm to 3.0 Nm [7.08 lb-in to 26.55 lb-in] |
| Maximum manual steering torque | 120 Nm [1,062 lb-in] |
| Maximum momentary load steering torque | 240 Nm [2,124 lb-in] |
See the technical information for more details.