Sun Hydraulics Cartridge Valve | PBBB-LAN RDHA-LCN DCFD-XCN | Pilot Relief & Solenoid Control
| Model Number | PBBB-LAN, PPDB-8WN, RDHA-LCN, DCFD-XCN, DCFC-XYN, DCEC-XTN |
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Product Description
Sun Hydraulics PBBB, PPDB, RDHA & DCFD Series Cartridge Valves
Product Overview: Sun Hydraulics Cartridge Valves are globally recognized for their iconic “Floating Style” design. This unique construction allows the internal spool to self-center during installation, neutralizing stresses caused by manifold machining tolerances or excessive torque. This category highlights a versatile range of premium models: PBBB-LAN (Pilot-operated reducing), PPDB-8WN (Pilot-operated reducing/relieving), RDHA-LCN (Direct-acting relief), and the DCFD / DCFC / DCEC solenoid-operated directional elements.
Engineered for high-pressure, long-life, and severe-duty hydraulic systems, these screw-in cartridges integrate seamlessly into custom manifolds. They are the premier choice for mobile cranes, injection molding machinery, hydraulic breaking tools, 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 cycles.
Precise Pressure Management: The PBBB and PPDB series maintain exceptionally stable secondary pressures for branch circuits, regardless of primary circuit fluctuations.
Efficient Solenoid Switching: The DCFD/DCFC solenoid elements offer rapid response times and versatile logic configurations, essential for remote-controlled manifold blocks.
High-Pressure Durability: Hardened and precision-ground internal parts ensure continuous operations up to 350 Bar with extended fatigue life.
Detailed Specifications & Parameters:
Core Series: Sun Hydraulics Pilot Control & Solenoid Cartridges.
Featured Model Matrix: PBBB-LAN, PPDB-8WN, RDHA-LCN, DCFD-XCN, DCFC-XYN, DCEC-XTN.
Core Performance Specs:
Max Operating Pressure: Rated for heavy-duty operations up to 350 Bar (5,000 PSI).
Functional Logic: Pilot Reducing (PBBB), Reducing/Relieving (PPDB), Direct Relief (RDHA), Solenoid Directional Control (DCF/DCE).
Adjustment Options: L (Leak-proof screw), 8 (Manual override or W Handknob).
Cavity Standards: Industry-standard cavities such as T-11A, T-10A, T-13A, and T-162A.




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