Dual cushion lock assembly with flow dividers


Function for YCCI
Port Designators [ + ]
Modifiers Ports
B, B/S Ports VA & VB: 3/8" NPTF; Port T: 1/2" NPTF; Ports C1 & C2: 1/4" NPTF;
J, J/S Ports VA & VB: SAE 8; Port T: SAE 10; Ports C1 & C2: SAE 6;
U, U/S Ports VA & VB: 3/8" BSPP; Port T: 1/2" BSPP; Ports C1 & C2: 1/4" BSPP;
Technical Features [ + ]

This assembly is a combination of the cushion lock circuit and flow dividers.
It provides flow division to two actuators in both directions.
It provides overrunning load control in both directions.
It provides cross-port relief protection.
It provides thermal relief protection.
It supplies make-up oil.
It flushes hot and dirty oil out of the actuators.

  • The counterbalance valves should be set at 1.3 times the maximum load induced pressure.
  • Operating characteristics cause the leg of the circuit with the greatest load to receive the higher percentage of flow in dividing mode. If a rigid mechanism is used to tie actuators together, the lead actuator may pull the lagging actuator and cause it to cavitate.
  • Below the minimum flow rating there is not enough flow for the valve to modulate. It is effectively a tee. If flow starts at zero and rises, there will be no dividing control until the flow reaches the minimum rating.
Technical Data [ + ]
Body Type Line mountLine mount
Capacity 1.5 - 8 gpm6 - 30 L/min.
Mounting Hole Diameter .42 in.10,7 mm
Mounting Hole Depth ThroughThrough
Mounting Hole Quantity 22
FAQs [ + ]

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

Notes [ + ]
  • All SAE o-ring porting per ISO 11926. All NPTF porting per ANSI B1.20.1. All BSPP porting parallel thread.
  • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
  • Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
Additional Resources [ + ]