SUN HYDRAULICS
RVCAQYV

***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 RVCAQYV (RVCAQYV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed until the inlet pressure at port 1 reaches the predetermined setting, at which point it opens to tank port 2 to throttle flow and maintain the desired pressure. It features a vent port 3 that allows for remote control via other pilot or two-way valves, enhancing its versatility in various applications. The RVCAQYV is characterized by its accuracy, low-pressure rise versus flow, smooth and quiet operation, and moderate response speed. Notably, this valve can accept maximum pressure at port 2 and is suitable for cross-port relief circuits; however, users should consider potential spool leakage in such setups. The main stage orifice is safeguarded by a 150-micron stainless steel screen to prevent contamination. It's important to note that this valve is not recommended for load-holding applications due to potential leakage issues. The RVCAQYV incorporates Sun's floating style construction to reduce the risk of internal part binding due to excessive installation torque or machining variations. It operates with a maximum pressure of 5000 psi (350 bar) and has a capacity of 15 gpm (60 L/min), with factory pressure settings established at a flow of 4 gpm (15 L/min). The valve's response time is approximately 10 milliseconds under typical conditions. For systems using phosphate ester fluids, cartridges configured with EPDM seals are available; however, these should not be exposed to petroleum-based fluids as they can cause seal damage. Installation requires specific torque settings and hex sizes for adjustment screws and locknuts to ensure proper functionality and secure operation.