SUN Hydraulics Cartridge Valve | CBBL-LJN | DTDA-MCN | PBDB-LWN | NFDD-LGN | CXDA-XCN

Industrial Precision Cartridge Valves (Balancing, Reducing, Flow & Logic)

Product Overview:

This high-performance Threaded Cartridge Valve series provides the essential logic and control for advanced hydraulic manifold systems. From the CBBL-LJN counterbalance valve, designed for secure load holding and smooth descent, to the PBDB-LWN reducing valve for precise pressure management, each component ensures peak dynamic stability. Integrating the DTDA-MCN solenoid logic valve and NFDD-LGN pressure-compensated flow control valve, this lineup delivers a compact, efficient, and highly reliable solution for mobile equipment and industrial automation.

Featured models include: DTDA-MCN-224, CBBL-LJN, DCFC-XHN, CXDA-XCN, NFDD-LGN, CKCB-XCN, and PBDB-LWN.

Key Technical Advantages:

• Superior Load Motion Control: The CBBL-LJN with a 4.5:1 pilot ratio is optimized for demanding load-holding applications, ensuring smooth transitions without hydraulic shock or chatter.

• High-Precision Pressure Management: The PBDB-LWN pilot-operated reducing/relieving valve features ultra-low hysteresis, maintaining stable secondary pressure across a wide flow range.

• Flexible Flow & Directional Logic: The NFDD-LGN provides constant flow output regardless of load pressure fluctuations, while the DTDA-MCN solenoid spool valve offers rapid-response switching.

• Standard Cavity Integration: Compatible with industry-standard T-11A, T-10A, and T-2A cavities, simplifying manifold design and facilitating easy on-site replacement.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • CBBL-LJN: Counterbalance valve, 4.5:1 pilot ratio, L adjustment, Range J ($140-350$ Bar), fits T-11A cavity.

  • PBDB-LWN: Pilot-operated reducing/relieving valve, L adjustment, Range W ($55-315$ Bar), N seals.

  • DTDA-MCN-224: 2-way, 2-position solenoid-operated directional spool valve, normally closed.

  • NFDD-LGN: Pressure-compensated flow control, L adjustment, ensures constant actuator speed.

  • CXDA-XCN / CKCB-XCN: High-reliability check and pilot-to-open check valves for zero-leakage static locking.

• Core Technical Specs:

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

  • Flow Capacity: Covers from $40\text{ L/min}$ up to $160\text{ L/min}$ depending on size.

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