Your Relief is Our Priority

Protecting your hydraulic system from overpressure isn't just smart, it's essential for reliable, safe performance. Sun Hydraulics' relief valves are designed to prevent temperature spikes, system failure, and component damage by maintaining precise pressure regulation. Ready to give your system some relief? Explore our relief valve solutions today.

Direct-Acting Relief Valves

For rapid response and resilience against pressure spikes, direct-acting relief valves are a great choice. Uniquely assembled without orifices, this design enables their rapid response. Ideal for clipping pressure spikes and perfect for demanding environments, this design also makes the valve less sensitive to contamination. Model RDDA is a featured product in the direct-acting relief valve family.

Pilot-Operated Relief Valves

Need dependable pressure control across varying flow rates? Sun's pilot-operated relief valves adjust easily under pressure due to their 2-stage design, offering smooth and quiet low pressure rise with flow. The RPEC valve provides robust protection for your system while ensuring efficient flow regulation. This valve makes a great standard relief option when regulating pressure with variable flow is required.

Balanced Poppet Relief Valves

Balanced poppet relief valves are similar to other pilot-operated relief valves with several key benefits. Low-leakage and precise, these valves offer a great solution for high-performance applications. The RPES combines the best of both worlds: the swift response of a direct-acting valve with the fine-tuning control of a pilot-operated system. Easy to adjust under pressure, RPES valves are also accurate, smooth, quiet, fast, and have low pressure rise vs. flow.

Electro-Proportional Relief Valves

Electro-proportional relief valves include both direct-acting and pilot-operated valve options. Unlike traditional on/off valves, electro-proportional valves offer infinite proportional control of the valve setting. When you require advanced control with unmatched precision, look no further than RPEI, Sun’s latest electro-proportional relief valve. Equipped for demanding drive circuits, this cutting-edge valve is ready to elevate your hydraulic system's performance.

Ventable Relief Valves

When hydraulic pressure builds, you need a reliable way to keep your system safe. Sun's 2-stage, solenoid-operated, adjustable ventable relief valves protect pressurized systems from overpressure conditions by venting excess pressure to a safe location. Long gone are the days of choosing between seamless operation and dependable relief, as these versatile valves combine both functions into one compact solution. Ideal as a pressure regulator and unloading valve, RVCK is 2-stage, solenoid-operated and adjustable. This valve is engineered to keep your system running at its best!