Sun Hydraulics Reducing & Reducing/Relieving Cartridge Valves

Accurate Downstream Pressure Control | Compact Cartridge Design | Stable Performance

Sun Hydraulics’ Reducing and Reducing/Relieving Cartridge Valves are precision pressure control components designed to maintain a lower, regulated pressure in a secondary circuit, regardless of fluctuations in upstream pressure. These valves are ideal for systems that require consistent control of pressure in branch lines or actuator operations.

The Reducing Valves control downstream pressure by restricting flow when the pressure exceeds a set value, while Reducing/Relieving Valves combine this functionality with pressure relief, venting excess pressure to tank when needed—offering dual protection and enhanced performance.

Key Features:

🔧 Pressure Regulation: Maintains stable downstream pressure under varying system loads

🔄 Reducing + Relieving: Optional relieving function protects components from overpressure

💧 High Flow Capacity: Engineered for minimal pressure drop and efficient flow handling

📏 Adjustable Pressure Settings: Allows fine-tuned control within a broad operating range

🧩 Standard ISO Cavity: Easy integration into manifolds and custom circuit blocks

🛠️ Durable Construction: Built with hardened, corrosion-resistant materials for long service life

⚙️ Available in Direct & Pilot-Operated Types: Suitable for low and high flow applications

Applications:

Multi-pressure hydraulic systems

Secondary actuator control

Mobile equipment with variable load demands

Industrial presses and automation

Marine and offshore hydraulic systems

Available Configurations:

Direct-acting reducing valves

Pilot-operated reducing valves

Reducing/relieving valves with tamper-resistant or adjustable options

Wide pressure range options (up to 5000 psi)