SUN HYDRAULICS
RVCAOBN

***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 RVCAOBN (RVCAOBN) is a ventable, pilot-operated, balanced piston relief cartridge designed to function as a normally closed pressure regulating valve. This advanced hydraulic component opens to the tank port when the inlet port pressure reaches a predetermined setting, effectively throttling flow to maintain the desired pressure level. It features a vent port that facilitates remote control via other pilot or two-way valves, making it particularly versatile for various applications. The RVCAOBN is known for its accuracy, low pressure rise versus flow, and smooth operation with moderate speed. This relief cartridge is suitable for cross-port relief circuits as it can handle maximum pressure at port 2. However, users should consider spool leakage in such configurations and note that it is not ideal for load-holding applications due to this characteristic. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. Additionally, backpressure on the tank port directly influences the valve setting at a 1:1 ratio. The RVCAOBN model incorporates Sun's floating style construction to minimize binding risks due to excessive installation torque or machining variations in cavities or cartridges. It operates at a maximum pressure of 5000 psi (350 bar) with a capacity of 15 gpm (60 L/min) and features an adjustment mechanism that allows for fine-tuning via clockwise turns. The cartridge comes equipped with EPDM seals suitable for systems using phosphate ester fluids but not compatible with petroleum-based substances. For installation, the valve requires specific torque settings and hex sizes for adjustment screws and locknuts. The model weighs approximately 0.40 lb (0.20 kg), making it lightweight yet robust enough for demanding industrial applications where precise pressure regulation is critical.