M&S 160cc/ 9.76 c.i. Full Hydraulic Steering Control Orbital Valve
FHV-RR160
The M&S FHV-RR160 Steering Control Valve is a 160cc orbital valve designed for full hydraulic steering systems where predictable steering speed and controlled response matter. With 9.76 cubic inches of displacement, this valve meters hydraulic fluid to the steering cylinder as the steering wheel is turned, giving the driver consistent control without a mechanical steering connection to the axle.
Orbital valve displacement is an important part of building a hydraulic steering system. Valve displacement works together with steering cylinder volume to determine how many steering wheel turns are required to move from lock to lock. A larger displacement moves more fluid per steering wheel revolution for quicker steering, while a smaller displacement moves less fluid for slower response and finer control.
The FHV-RR160 is a universal option for rock crawlers, trail rigs, buggies, and custom off-road vehicles running full hydraulic steering. For best performance, the orbital displacement should be matched to the steering cylinder volume, desired turns lock-to-lock, pump capacity, and intended vehicle use.
Includes:
- (1) M&S 160cc/ 9.76 c.i. Steering Control Orbital Valve
- (1) Hardware Kit
Specifications
| Specification | Details |
|---|---|
| Part Number | FHV-RR160 |
| Component Type | Steering Control / Orbital Valve |
| Steering Type | Full Hydraulic |
| Displacement | 160cc per Revolution |
| Displacement | 9.76 cu. in. per Revolution |
| Neutral Circuit | Open Center Oil Flow |
| Load Circuit | Load Reaction |
| Port Size | -8 ORB* |
| Rated Pressure | 2,465 PSI |
| Max Rated Backpressure at Port T | 360 PSI |
| Input Shaft | Standard 12-Tooth Involute Splined |
| Construction | Black Anodized Aluminum |
| Design | Open Center, Load Reactive |
| Application | Universal Full Hydraulic Steering |
| Intended Use | Off-Road / Custom Steering Systems |
Fitment
Universal fitment for full hydraulic steering systems
Fitment Notes:
- Designed for full hydraulic steering systems.
- Commonly used in rock crawlers, trail rigs, rock bouncers, buggies, and custom off-road vehicles.
- Orbital displacement must be matched appropriately to steering cylinder volume.
- Steering pump flow and pressure must also be appropriate for the complete system.
- Hose routing, fittings, steering cylinder size, and hydraulic reservoir capacity should be considered when designing the system.
- This is not a vehicle-specific bolt-on steering component.
Tech Insight
What does 160cc mean on an orbital steering valve?
The 160cc rating refers to the approximate amount of hydraulic fluid the valve displaces per steering wheel revolution. The FHV-RR160 is rated at 160cc, or 9.76 cubic inches, per revolution.
How does orbital size affect steering?
A larger displacement orbital moves more hydraulic fluid with each steering wheel revolution, generally resulting in faster steering and fewer turns lock-to-lock. A smaller orbital moves less fluid and generally provides slower steering with more steering wheel turns.
How do I know if a 160cc orbital is right for my steering cylinder?
The valve displacement needs to be compared with the working volume of your steering cylinder. Cylinder bore, rod diameter, stroke, and configuration all affect the amount of fluid required to move the steering from lock to lock.
Is the FHV-RR160 vehicle specific?
No. This is a universal steering control valve intended for properly designed full hydraulic steering systems.
Can I use this for a rock crawler?
Yes. Full hydraulic steering systems are commonly used on rock crawlers, buggies, trail rigs, and other custom off-road vehicles where large tires and high steering loads make conventional steering systems difficult to package.
Does changing the orbital change hydraulic pressure?
Orbital displacement primarily affects how much fluid is moved per steering wheel revolution. System pressure and flow are also determined by the steering pump and other components in the hydraulic system.
What else do I need to build a full hydraulic steering system?
A typical system requires a properly sized steering cylinder, hydraulic steering pump, reservoir, hoses, fittings, cooler where appropriate, filtration, and correctly sized steering control valve. The entire system should be designed to work together rather than sizing each component independently.
