Relief Cartridge Valves

Sun Hydraulics Relief Cartridge Valves

Precision Overpressure Control | Compact Cartridge Design | Trusted Worldwide

Sun Hydraulics’ Relief Cartridge Valves are high-performance components designed to manage excess pressure in hydraulic systems. These valves provide reliable system protection by diverting flow once the set pressure limit is reached, preventing damage to pumps, actuators, and other sensitive components.

Built on decades of engineering expertise, Sun’s relief valves are compact, screw-in cartridges that fit into standard ISO cavities, offering versatile integration in manifold systems or custom hydraulic circuits. Available in direct-acting and pilot-operated configurations, they support a wide pressure range and maintain consistent performance under varying loads.

Key Features:

🔧 Precise Pressure Control: Stable and accurate pressure settings for critical hydraulic operations

💧 High Flow Capacity: Optimized internal design allows efficient flow with minimal pressure drop

🔁 Quick Response: Rapid opening and closing to protect against sudden pressure spikes

⚙️ Wide Operating Range: Pressure settings up to 5000 psi (345 bar)

🧩 Standard ISO Cavities: Easy installation and interchangeability

🛠️ Long Life Design: Hardened components and wear-resistant construction

🌍 Industry-Proven: Widely used in mobile equipment, industrial automation, marine, and oil & gas sectors

Applications:

Hydraulic Power Units

Mobile Machinery & Equipment

Marine and Offshore Hydraulics

Oil & Gas Control Systems

Industrial Automation and Press Systems

Why Choose Sun Hydraulics Relief Valves?

Sun Hydraulics is globally recognized for its modular cartridge valve technology, delivering unmatched reliability, precision, and flexibility. Their relief valves are engineered and manufactured in the USA with strict quality standards, ensuring dependable performance in the most demanding environments.