Sun Hydraulics CWEA CWGA XFOA | CWEA-LHN CWGA-LHN Relief Valve | Counterbalance Cartridge

Sun Hydraulics CWEA, CWGA & XFOA Series Cartridge Valves

Product Overview: Sun Hydraulics Counterbalance and Logic Valves are critical precision components for load locking, overrunning load control, and logic switching in sophisticated hydraulic circuits. This category highlights premier models: CWEA-LHN (CWEALHN), CWGA-LHN (CWGALHN), and the XFOA-XXN (XFOAXXN) logic element.

Featuring Sun’s patented “Floating Style” design, these cartridges prevent internal spool binding caused by installation torque or manifold machining tolerances. The CWEA/CWGA counterbalance series provides elite safety for lifting machinery, while the XFOA logic elements offer flexible directional control for complex systems.

Key Technical Advantages:

• Zero-Leakage Load Holding: Precision-ground poppet seating ensures zero drift of actuators (cylinders/motors) in the hold position.

• Floating Cartridge Design: Allows internal components to self-center during installation, significantly enhancing reliability under high-pressure and thermal cycles.

• Smooth Pilot Response: Optimized pilot ratios (e.g., 3:1 or 5:1) eliminate system chatter and ensure pulse-free, controlled descent under heavy loads.

• Series Precision Matrix:

  • CWEA Series: Advanced counterbalance valves featuring precise pilot-to-open characteristics and back-pressure compensation.

  • CWGA Series: Compact counterbalance control valves ideal for standard load-holding tasks.

  • XFOA Series: Fixed-orifice logic elements utilized for building custom directional or pressure-limiting logic.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Counterbalance & Logic Cartridges.

• Featured Model Matrix: CWEA-LHN, CWEALHN, CWGA-LHN, CWGALHN, XFOA-XXN, XFOAXXN.

• Core Performance Specs:

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

  • Flow Capacity: Ranging from 60 L/min up to 240 L/min depending on cavity size (e.g., T-2A, T-11A, T-17A).

  • Adjustment Options: L (Standard Leak-proof screw); X (Non-adjustable, standard for XFOA).

  • Cavity Standards: Industry-standard screw-in cartridge cavities.