SUN HYDRAULICS
RVIALBV

***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 RVIALBV (RVIALBV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet port 1 pressure reaches the set level, throttling flow to maintain desired pressure. It features a third vent port for remote control via other pilot or two-way valves. Known for its accuracy and smooth operation, this valve provides low pressure rise versus flow and is moderately fast in response. The RVIALBV can accept maximum pressure at port 2, making it suitable for cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. It's important to note that the relief valve setting must exceed that of the pilot valve setting, and due to spool leakage, it's not recommended for load-holding applications. Cartridges with EPDM seals are compatible with phosphate ester fluids but are susceptible to damage from petroleum-based substances. The valve incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. With a capacity of 120 gpm (480 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge is robust and reliable. The control pilot flow ranges from 15-20 in\u00b3/min (0.25-0.33 L/min), with a typical response time of 10 ms and maximum valve leakage at 5 in\u00b3/min (80 cc/min) under specified conditions. It has an adjustable setting mechanism with five clockwise turns required for increased settings and features specific torque requirements for installation and adjustments, ensuring secure operation in demanding environments.