Sectional
Directional Control Valve
RS 220
Product features
Areas of application:
The RS 220 is ideal for applications where you need excellent control characteristics such as:
- Cranes
- Sky-lifts
- Excavators
- Wheel loading
- Telescopic load handlers
- Skid-loaders
Key valve features
RS 220 is a sectional open center valve designed for max. operating pressures up to 4,350 psi (300 bar) and max. pump flows up to 30 gpm (110 Lpm). It is available with 1 to 10 working sections per valve assembly. RS 220 is designed with an open center for fixed pumps and a restricted open center for variable displacement pumps. It is available with electro-hydraulic or hydraulic proportional remote control, but the valve can also be manually operated.
The electro-hydraulic proportional version in particular offers compact design with internal pilot oil supply, solenoids integrated in the valve body and integral hand levers for manual override/manual operation. RS 220 can be fully adapted for marine applications. The valve offers excellent operating characteristics because of the specially designed spools for different applications. Low and uniform spool forces are the result of careful balancing of the flow forces.
Q-inlet
The Q-inlet is designed with a flow control (Q-function) that by-passes the major part of the pump flow to tank when the system is idling, still giving access to full pump flow when the working sections are operated. Besides greatly reducing heat generation this also provides improved operating characteristics.
