Get the relief you need.
Adjustable. Ventable. Blockable.
FLeX-ible.
FLeX Means Relief.
Sun’s solenoid-operated relief valves feature a 2-stage, field adjustable design with ventable and blockable relief functions, offering precise and dependable pressure regulation with flow rates up to 25-gpm (100-L/min).
Model Overview
In relief mode, the valves open to tank (port 2), throttling flow to regulate the pressure when the pressure at the inlet (port 1) reaches the valve setting, which is adjustable. Energizing the solenoid activates or deactivates the relief function. Four versions are available:
| MODEL | DESCRIPTION | SYMBOL | DATA SHEET |
|---|
Unique Advantages
RVC* valves were designed to reduce the complexity and improve the reliability and safety of your systems.
- Reduces complexity: these valves combine the functionality of two valves into one body and one cavity, reducing materials and creating a more compact and efficient system.
- Improves reliability: the main stage orifice is protected by a 150-micron stainless steel screen for extended product life.
- Improves safety: the adjustment screw is leak-free and contains a mechanical stop to prevent the screw from backing out, offering safe, reliable field adjustment.
Unique Advantages
Across the board, the unique design of the RVC* family can reduce complexity in mobile and industrial hydraulic systems. The 2-stage design combines two cartridges in one, reducing complexity and overall cost. See an example circuit below, or open the full data sheet for more circuit diagrams.
The RVC* valves are also ideal in fixed displacement pump applications. Each model in the valve family presents a distinct advantage to specific hydraulic systems and applications:
- RVCK – Use for pump start-up to unload until pressure is built, eliminating stress on the system, then energize during operation.
- RVCL – Allows the user to energize at start-up and de-energize during operations to keep power consumption lower during use.
- RVCM – Ideal in circuits that require two pressure settings, one with a high setting at acceleration, and one with a setting that is constant. The blockable RVCM regulates pressure throughout.
- RVCN – Use the relief function to preload the cylinder and avoid decompression shock in systems built for high capacities.
Applying the RVC* in specific hydraulic systems is explained further in the full data sheet, complete with circuit diagrams. Click here to download.
740 Series High-Power and 747 Series Explosion-Proof Coils
The RVC* utilizes both 740 Series high-power and 747 Series hazardous location coils. A wide variety of coil termination and voltage options are available, with and without surge protection. To view more details and coil configurations, click here.
