SUN HYDRAULICS CORP
DSISXCN
Load Holding

High-side shuttle cartridges are most often used in full-time regeneration circuits. When both work ports (ports 2 and 4) are at equal pressures the valve is spring-centered to an all-ports-blocked position. When one of the work ports (port 2 or 4) sees a higher pressure it is connected to the common port (port 3).

• This valve provides overrunning load control in regeneration applications where the load tends to extend the cylinder. Because there is spool leakage, it does not prevent drift.
• Hardened spool/sleeve construction provides excellent wear characteristics and minimizes cross leakage.
• Although this valve goes into a 4-port cavity, the nose (port 1) is not used.
• Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.