Sun Hydraulics Relief Valve | RVED-LAN RVGD-LAN RVIB-LAN | Pilot-operated Balanced Piston

Sun Hydraulics Pilot-operated Balanced Piston Relief Valves

Product Overview: Sun Hydraulics Relief Valves are globally recognized for their iconic “Floating Style” design. This unique construction allows internal components to self-center within the cavity, neutralizing internal stresses caused by installation torque or manifold machining tolerances. This ensures sensitive and accurate operation even under extreme pressures up to 350 Bar. This category features the premium balanced piston series, including models: RVED-LAN, RVGD-LAN, RVES-LAN, RVGS-LAN, RVCD-LAN, and RVIB-LAN.

The balanced piston design makes these valves insensitive to back pressure at Port 2 (tank port). They are the premier choice for heavy-duty mobile machinery, industrial presses, injection molding systems, and high-pressure hydraulic power units (HPU), providing elite pressure regulation and overload protection.

Key Technical Advantages:

• Balanced Piston Architecture: Delivers exceptional pressure stability, ensuring the pre-set system pressure remains constant even amidst significant flow fluctuations.

• Patented Floating Cartridge: The unique two-piece structure prevents spool binding caused by thermal expansion or mechanical stress, significantly enhancing reliability.

• High Response & Low Hysteresis: The pilot-operated mechanism guarantees rapid response times and minimal pressure override, offering instantaneous protection for sensitive circuits.

• High-Pressure Durability: Featuring hardened and precision-ground internal parts, rated for continuous operations up to 350 Bar with an extended fatigue life.

Detailed Specifications & Parameters:

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

• Featured Model Matrix: RVED-LAN, RVGD-LAN, RVES-LAN, RVGS-LAN, RVCD-LAN, RVIB-LAN.

• Core Performance Specs:

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

  • Adjustment Ranges: Code A (typically 100-3000 PSI) or B (50-1500 PSI) depending on specific requirements.

  • Adjustment Options: L (Leak-proof screw), K (Handknob adjustment).

  • Cavity Standards: Industry-standard cavities such as T-3A, T-10A, T-16A, and T-19A.

  • Flow Capacities: Ranging from 45 L/min to 480 L/min depending on frame size.