SUN HYDRAULICS
RVEALLE

***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 RVEALLE (RVEALLE) is a ventable, pilot-operated, balanced piston relief cartridge designed for pressure regulation applications. These normally closed valves open to the tank port when the inlet pressure reaches the set point, allowing for precise pressure control. They feature a vent port that enables remote control by other pilot or 2-way valves. The RVEALLE model is known for its accuracy, low pressure rise versus flow, smooth operation, and moderate speed. It can handle maximum pressures at port 2 and is suitable for cross-port relief circuits with considerations for spool leakage. This cartridge includes a stainless steel screen protecting the main stage orifice and incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. The valve has a capacity of 30 gpm (120 L/min) and can operate at a maximum pressure of 5000 psi (350 bar). It features a control pilot flow ranging from 10 to 15 in\u00b3/min (0.16 to 0.25 L/min) with typical response times around 10 ms. The maximum valve leakage is rated at 3 in\u00b3/min (50 cc/min) at 1000 psi (70 bar). Adjustments are made via an internal hex screw with five clockwise turns increasing the setting, and it requires specific installation torques for both the valve and locknut. Notably, cartridges with EPDM seals should only be used in systems utilizing phosphate ester fluids as exposure to petroleum-based substances can damage these seals. The RVEALLE model is not recommended for load-holding applications due to potential spool leakage, and backpressure on the tank port directly affects the valve setting in a linear relationship. With its robust design and comprehensive features, this cartridge provides reliable performance in various hydraulic systems requiring precise pressure regulation.