SUN HYDRAULICS
RVEALCN

***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 RVEALCN (Material Number: RVEALCN) is a ventable, pilot-operated, balanced piston relief cartridge that serves as a normally closed pressure regulating valve. Designed to open to tank port 2 when the inlet port 1 pressure reaches the valve setting, it effectively throttles flow to maintain desired pressure levels. Notably, this model includes a vent port 3 for remote control via other pilot or two-way valves, offering precision and low pressure rise versus flow characteristics. The valve is engineered with a stainless steel screen protecting the main stage orifice and incorporates Sun's floating style construction to minimize binding risks due to installation torque or machining variations. This cartridge is capable of handling maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should consider spool leakage in such applications. It is not recommended for load-holding applications due to this leakage concern. The valve's back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. For systems utilizing phosphate ester fluids, configurations with EPDM seals are available; note that exposure to petroleum-based substances will damage these seals. With a capacity of 30 gpm (120 L/min) and maximum operating pressure of 5000 psi (350 bar), this cartridge offers reliable performance with factory settings established at 4 gpm (15 L/min). It features an adjustment mechanism allowing up to five clockwise turns for increasing settings and requires specific torques for installation and locknut adjustments. The model weighs approximately .70 lb (.30 kg) and comes with an optional Viton seal kit (990202006) for enhanced versatility in various hydraulic applications.