SUN Hydraulics Cartridge Valve | CBEA-LHN | RPEC-LAN | CVCV-XCN | CKCB-XCN

Industrial Cartridge Valves (CBEA, RPEC, CVCV, CKCB, CXHA)

Product Overview:

This series of Threaded Cartridge Valves represents the essential building blocks for high-efficiency hydraulic manifold design. The CBEA-LHN counterbalance valve provides smooth descending control and static load locking, while the RPEC-LAN pilot-operated relief valve acts as the “safety guard,” offering precise upper-pressure limit protection. Combined with CVCV and CKCB pilot-to-open check valves and the CXHA free-flow check valve, this series enables the construction of zero-leakage, high-response hydraulic circuits for injection molding, material handling, and mobile machinery.

Featured models include: CBEA-LHN, RPEC-LAN, CVCV-XCN, CKCB-XCN, and CXHA-XAN.

Key Technical Advantages:

• Precision Load Balancing: The CBEA-LHN features a 3:1 pilot ratio, effectively eliminating chatter caused by gravity loads and enabling smooth metering control.

• High-Stability Pressure Relief: The RPEC-LAN utilizes a pilot-operated balanced piston design, maintaining minimal pressure rise even during dramatic flow fluctuations.

• Dual Safety Locking: CVCV and CKCB pilot-to-open check valves are engineered for load holding, ensuring cylinder positions remain secure during shutdown or line bursts.

• Durability & Longevity: Manufactured from high-strength alloy steel, heat-treated and ground to fit standard SUN cavities, these valves offer high contamination tolerance and extended service life.

Detailed Specifications & Parameters:

• Core Model Matrix:

  • CBEA-LHN: Counterbalance valve, 3:1 pilot ratio, Range H ($70 – 280\text{ Bar}$), fits T-11A cavity.

  • RPEC-LAN: Pilot-operated relief valve, Range A ($7 – 210\text{ Bar}$), fits T-10A cavity.

  • CVCV-XCN: Pilot-to-open check valve with superior control characteristics.

  • CKCB-XCN: Pilot-to-open check valve (Load locking), size T-11A.

  • CXHA-XAN: Free-flow check valve with Range A cracking pressure ($0.3\text{ Bar}$).

• Core Technical Specs:

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

  • Flow Capacity: Ranges from $30\text{ L/min}$ up to $95\text{ L/min}$ depending on the PN.

  • Adjustment Type: L type manual hex adjustment with locknut.

  • Seals: Standard Buna-N; Viton (FKM) optional for high-temp environments.