SUN HYDRAULICS
RVGALCN

***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 RVGALCN (RVGALCN) is a ventable, pilot-operated, balanced piston relief cartridge valve designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when the inlet pressure reaches the pre-set level, effectively throttling flow to maintain desired pressure levels. It features a vent port that allows for remote control via other pilot or two-way valves. Known for its accuracy and smooth operation, this valve is also characterized by its low pressure rise versus flow and moderate response speed. The RVGALCN can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should consider spool leakage in such applications. Its main stage orifice is safeguarded by a 150-micron stainless steel screen to ensure durability and performance reliability. This cartridge is not recommended for load-holding applications due to potential spool leakage. The valve\u2019s setting is directly influenced by back pressure on the tank port at a 1:1 ratio. For systems utilizing phosphate ester fluids, EPDM seal configurations are available; however, exposure to petroleum-based substances should be avoided as it can damage these seals. The design incorporates Sun's floating style construction to reduce risks of internal binding from excessive torque or machining variations. The RVGALCN has a cavity size of T-17A with a series 3 capacity of up to 60 gpm (240 L/min), and it operates at a maximum pressure of 5000 psi (350 bar). It offers adjustable settings with up to five turns clockwise needed for increasing the setting and features specific installation torque requirements. This model weighs approximately 1.60 lb (0.70 kg) and comes with an optional Viton seal kit (990017006) for enhanced compatibility with various hydraulic fluids.