SUN HYDRAULICS
RVEAQSN

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics RVEAQSN (RVEAQSN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to tank port 2 when the inlet pressure at port 1 reaches the set threshold, thereby throttling flow to maintain desired pressure levels. It features a vent port 3 that facilitates remote control via other pilot or two-way valves. Known for its accuracy and low pressure rise versus flow characteristics, the valve operates smoothly and quietly with moderate speed. This model can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should consider spool leakage in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. It's important to note that this valve is not intended for load-holding applications due to potential spool leakage. Additionally, any backpressure on tank port 2 directly affects the valve setting at a one-to-one ratio. For systems utilizing phosphate ester fluids, cartridges with EPDM seals are available; however, these are incompatible with petroleum-based substances as they can damage the seals. The valve incorporates Sun's floating style construction to reduce internal part binding risks due to excessive installation torque or machining variations. The RVEAQSN has a capacity of 30 gpm (120 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It features an adjustment mechanism allowing up to five clockwise turns to increase settings and requires specific installation torques for optimal performance. The model weighs approximately 0.70 lb (0.30 kg) and comes with an optional Viton seal kit for added versatility in various hydraulic applications.