SUN Hydraulics Cartridge Valve | CBCALHN | CKCAXCN | CACALHN | CXDAXCN | Load Holding Valve

Precision Cartridge Valves (CBCALHN, CKCAXCN, CACALHN, CXDAXCN)

Product Overview:

This series of Threaded Cartridge Valves serves as the foundation for safe load control and efficient logic management in modern hydraulic systems. The CBCALHN and CACALHN pilot-proportional counterbalance valves are engineered to prevent cylinder chatter and overrunning loads, ensuring smooth dynamic modulation. Complementing these are the CKCAXCN and CKCBXCN pilot-to-open check valves, which allow reverse flow upon receiving a pilot signal while maintaining zero-leakage static locking. Paired with the CXDAXCN standard check valve, this lineup allows for the construction of highly compact and reliable hydraulic manifold solutions.

Featured models include: CBCALHN, CKCAXCN, CACALHN, CKCBXCN, and CXDAXCN.

Key Technical Advantages:

• Superior Load Stability: The CBCALHN features a 3:1 pilot ratio, smoothly modulating flow relative to input pressure to eliminate oscillations caused by runaway actuators.

• High-Integrity Static Locking: The CKCA/CKCB pilot-operated check valves utilize precision-hardened spools to deliver “zero-leakage” performance, providing essential safety for crane outriggers and lift platforms.

• Low Pressure Drop Design: The CXDAXCN check valve flow path is fluid-dynamically optimized to minimize parasitic pressure loss during forward flow while ensuring absolute reverse shut-off.

• Standard Cavity Compatibility: Fits standard T-11A (for CBCA/CKCA) and related cavities, facilitating seamless initial integration and simplifying on-site maintenance and replacement.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • CBCALHN: Counterbalance valve, 3:1 pilot ratio, L adjustment, Range H ($70 – 280$ Bar), fits T-11A cavity.

  • CACALHN: Counterbalance valve, fixed ratio configuration for stable load descent control.

  • CKCAXCN: 3-port pilot-to-open check valve, fixed X configuration, Range C cracking pressure ($2$ Bar).

  • CKCBXCN: Pilot check valve variant with enhanced flow capacity or specific pilot characteristics.

  • CXDAXCN: 2-port check valve, full-flow design ensuring unidirectional flow integrity.

• Core Technical Specs:

  • Max Operating Pressure: Rated up to 350 Bar (5000 PSI).

  • Flow Capacity: Covers from $40\text{ L/min}$ to $60\text{ L/min}$ depending on the model.

  • Seals: Standard Buna-N (N); Viton (FKM) optional for high-temperature or phosphate ester fluids.

  • Mounting Type: Threaded cartridge, compliant with international standards.

RPECLAN
NFDDLGN
CBEALHN
CXDAXAN