SUN HYDRAULICS
RVGDLHV

***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 RVGDLHV (RVGDLHV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This model is engineered to open to tank port 2 when the pressure at inlet port 1 reaches the valve setting, thereby throttling the flow to regulate pressure effectively. It features a vent port 3 for remote control by other pilot or two-way valves and a drain port 4 that ensures insensitivity to back pressure. Known for its accuracy and low pressure rise versus flow characteristics, this valve operates smoothly and quietly with moderate speed. It can handle maximum pressure at port 2 and is suitable for use in cross-port relief circuits, although consideration for spool leakage should be made in such applications. The main stage orifice is protected by a 150-micron stainless steel screen, enhancing durability and performance reliability. However, it is not suitable for load holding applications due to spool leakage. The valve setting can be directly influenced by the pressure at port 4 on a 1:1 ratio but should not exceed 5000 psi (350 bar). The Sun floating style construction minimizes internal part binding risks due to excessive installation torque or cavity/cartridge machining variations. With a capacity of up to 60 gpm (240 L/min) and factory pressure settings established at 4 gpm (15 L/min), this model operates at a maximum operating pressure of 5000 psi (350 bar). It has a control pilot flow of between 15-20 in\u00b3/min (0.25-0.33 L/min) with typical response times around 10 ms. Its design includes an adjustment mechanism where clockwise turns increase settings up to five full turns, alongside specific installation torque requirements ensuring optimal performance in diverse hydraulic applications.