SUN HYDRAULICS
RVESLBN

***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 RVESLBN (Material Number: RVESLBN) is a ventable, pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation in hydraulic systems. When the inlet port pressure reaches the set threshold, this valve opens to the tank port, modulating flow to maintain desired pressure levels. It features a vent port allowing remote control via other pilot or two-way valves. Notably accurate with low-pressure rise versus flow, these cartridges operate smoothly and quietly while offering moderate response speeds. A key advantage is their resistance to cavitation-related issues such as noise and manifold erosion due to internal modulation. Ideal for load-holding applications, provided any valving on the vent port is zero leak, this valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits. The valve's design ensures insensitivity to varying oil temperatures and contamination. A 150-micron stainless steel screen protects the main stage orifice from debris. The back pressure on the tank port directly adds to the valve setting at a 1:1 ratio. The RVESLBN incorporates Sun's floating style construction to minimize potential binding of internal parts from excessive installation torque or machining variations in cavities/cartridges. It has a capacity of 25 gpm (95 L/min) with a maximum operating pressure of 5000 psi (350 bar). The factory pressure settings are established at 4 gpm (15 L/min), with typical response times around 2 ms and maximum leakage at reseat limited to 10 drops/min (0.7 cc/min). The valve offers adjustability through clockwise turns, requiring specific torque values for installation and locknut adjustments. Overall, this hydraulic cartridge is engineered for reliable performance in demanding applications where precise pressure control is crucial.