Sun Hydraulics Pilot Operated Check Valve | CWGA-LHN CXBA-XCN CWEG-LFN | Load Holding Cartridge

Sun Hydraulics CW & CX Series Pilot Operated Check Valves

Product Overview: Sun Hydraulics Cartridge Valves are globally recognized for their superior reliability and patented “Floating Style” design. This unique construction allows internal components to self-center during installation, neutralizing internal stresses caused by manifold machining tolerances or excessive torque. This ensures the spool remains sensitive even under high pressure. This category features premier models for load locking: CWGA-LHN, CWIA-LHN, CWCG-LFN, CWEG-LFN (Pilot-to-open check), and CXBA-XCN, CXDA-XCN (Direct check valves).

Engineered for high-pressure and zero-leakage requirements, these screw-in cartridges are the premier choice for outrigger locking in cranes, aerial work platforms, machine tool clamping systems, and industrial Hydraulic Power Units (HPU).

Key Technical Advantages:

• Floating Cartridge Technology: The unique two-piece floating construction significantly reduces the risk of spool binding caused by mechanical stress, enhancing operational sensitivity.

• Zero-Leakage Integrity: Precision-honed seats and poppets guarantee zero internal leakage during long-term load holding, ensuring actuator stability and safety.

• Optimized Pilot Ratios: The CW series offers various pilot ratio options to ensure smooth opening even in circuits with high back-pressure.

• Corrosion-Resistant Adjustments (-LHN/LFN): Equipped with high-grade stainless steel adjustment screws, providing excellent durability in harsh outdoor environments.

Detailed Specifications & Parameters:

• Core Series: Sun Hydraulics Pilot-to-Open Check & Load Holding Cartridges.

• Featured Model Matrix: CWGA-LHN, CWIA-LHN, CWCG-LFN, CWEG-LFN, CWIG-LFN, CXBA-XCN, CXDA-XCN, CWEA-LHN.

• Core Performance Specs:

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

  • Functional Logic: Pilot-to-open Check (CW Series), Direct Check (CX Series).

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

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

  • Cavity Standards: Industry-standard cavities such as T-11A, T-2A, T-5A, and T-10A.