Sun Hydraulics Cartridge Valve | CVIV-XCN PPDB-LAV CBEJ-LAN | Pilot Open Check & Relief

Sun Hydraulics CVIV, PPDB, NFFC & CBEJ 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 during installation, neutralizing stresses caused by manifold machining tolerances or excessive torque. This category highlights a versatile range of premium models: CVIV-XCN (Pilot-to-open check), PPDB-LAV / PPFB-LAN (Pilot-operated reducing/relieving), NFFC-LGN (Fully adjustable throttle check), CXFA-XAN (Check valve), and CBEJ-LAN (Counterbalance valve).

Engineered for high-pressure, long-life, and severe-duty hydraulic integrated circuits, these screw-in cartridges integrate seamlessly into custom manifolds. They are the premier choice for mobile cranes, aerial work platforms, CNC machinery, and industrial Hydraulic Power Units (HPU).

Key Technical Advantages:

• Floating Cartridge Technology: The unique two-piece floating construction significantly enhances operational reliability and sensitivity under high-pressure and thermal cycles.

• Elite Load Management: The CBEJ counterbalance and CVIV pilot check valves provide superior load-locking capabilities, eliminating actuator drift.

• Stable Pressure Regulation: The PPDB and PPFB series deliver exceptionally stable secondary pressures for branch circuits, regardless of primary circuit fluctuations.

• Compact & Leak-Proof Design: Screw-in cartridge architecture streamlines manifold layouts, minimizes potential leak points, and reduces the overall footprint of the system.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Precision Cartridges (Pressure & Flow Control).

• Featured Model Matrix: CVIV-XCN, PPDB-LAV, PPFB-LAN, NFFC-LGN, CXFA-XAN, CBEJ-LAN.

• Core Performance Specs:

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

  • Functional Logic: Pilot-to-open Check (CVIV), Reducing/Relieving (PPDB/PPFB), Pressure Compensated Throttle (NFFC), Counterbalance (CBEJ).

  • Adjustment Options: L (Leak-proof screw), X (Non-adjustable).

  • Sealing Materials: N (Buna-N Standard) or V (Viton options).

  • Cavity Standards: Industry-standard cavities such as T-11A, T-2A, T-13A, and T-10A.