Sun Hydraulics Cartridge Valve | RVCA-LCN NFBC-LCN QCDB-LAN | Relief & Flow Control

Sun Hydraulics RVCA, NFBC, QCDB & DMDA Series Cartridge Valves

Product Overview: Sun Hydraulics Cartridge Valves are globally recognized for their iconic “Floating Style” design. This unique construction allows internal components to self-center, compensating for manifold machining tolerances and ensuring sensitive operation under extreme pressures. This category highlights a versatile range of functional models: RVCA-LCN (Direct-acting relief), QCDB-LAN (Logic element), DMDA-MAN (Solenoid-operated directional), NFBC-LCN (Fully adjustable pressure-compensated flow control), and DTDA-MCN (Solenoid-operated directional).

Engineered for high-pressure, high-flow, and demanding hydraulic circuits, these screw-in cartridges integrate seamlessly into custom manifolds. They are the premier choice for construction machinery, agricultural equipment, industrial Hydraulic Power Units (HPU), and automated production lines.

Key Technical Advantages:

• Floating Spool Technology: Prevents spool binding caused by excessive installation torque or manifold deformation, significantly enhancing reliability and service life.

• Precise Pressure & Flow Management: The NFBC series ensures constant actuator speed despite load fluctuations, while the RVCA series provides instantaneous response for system overpressure protection.

• High Integration & Compactness: The screw-in design minimizes external fittings and leakage points, effectively reducing the overall footprint of the hydraulic system.

• Extended Durability: Hardened and precision-ground internal components ensure reliable performance under continuous operations up to 350 Bar.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Functional Cartridges.

• Featured Model Matrix: RVCA-LCN, QCDB-LAN, DMDA-MAN, NFBC-LCN, DTDA-MCN.

• Core Performance Specs:

  • Max Operating Pressure: Rated for heavy-duty operations up to 350 Bar (5,000 PSI).

  • Functional Logic: Pressure relief (RVCA), Flow regulation (NFBC), Logic switching (QCDB), and Solenoid directional control (DMDA, DTDA).

  • Adjustment Options: L (Leak-proof screw), M (Manual override/knob), C (Tamper-resistant cap).

  • Pressure/Flow Codes: Codes A, B, C, N designate specific flow capacities and spring ranges.

  • Cavity Standards: Industry-standard cavities including T-10A, T-11A, T-13A, and T-5A.