Sun Hydraulics RV Series Relief Valve | RVCD-8WN RVGD-LAN RVID-LAN | Balanced Piston Cartridge

Sun Hydraulics RV Series Pilot-operated Balanced Piston Relief Valves

Product Overview: Sun Hydraulics RV Series Relief Valves are premium pressure control components engineered for high-pressure and high-flow hydraulic systems. The cornerstone of this series is the patented “Floating Style” construction—a unique two-piece design that allows internal parts to self-center during installation. This eliminates spool binding caused by manifold machining inaccuracies or excessive torque. This category features the full balanced piston model matrix: RVCD-LAN / 8WN, RVGD-LAN, RVID-LAN, RVED-LAN / 8WN, and the RVES / RVGS series.

These valves deliver exceptional pressure stability, ensuring that the set system pressure remains constant even amidst significant flow fluctuations. They are the premier choice for main relief protection in heavy-duty cranes, injection molding machinery, Hydraulic Power Units (HPU), and drilling equipment.

Key Technical Advantages:

• Balanced Piston Architecture: Provides lower pressure override and faster response times compared to direct-acting valves, with excellent tolerance for backpressure at the return port (Port 2).

• Handknob Adjustment (-8WN): Equipped with an ergonomic adjustment knob, allowing technicians to perform real-time field pressure tuning without specialized tools.

• Patented Floating Technology: The unique structure significantly reduces internal stress caused by mechanical forces, ensuring sensitive operation up to 350 Bar (5,000 PSI).

• High Repeatability: Precision-ground pilot-stage components guarantee consistent cracking pressure, providing reliable protection for hydraulic pumps and sensitive system circuits.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Pilot-operated Balanced Piston Relief Cartridges.

• Featured Model Matrix: RVES-LAN, RVGS-LAN, RVCD-LAN, RVED-LAN, RVGD-LAN, RVID-LAN, RVCD-8WN, RVED-8WN.

• Core Performance Specs:

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

  • Adjustment Options: L (Leak-proof screw), 8 (Manual Handknob).

  • Cavity Standards: Compatible with T-10A, T-3A, T-16A, and T-19A industry-standard cavities.

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

  • Control Logic: Internal vent to Port 2.

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