SUN HYDRAULICS
RVEALTV

***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 RVEALTV (RVEALTV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. It functions as a normally closed pressure regulating valve, opening to the tank port when the inlet pressure reaches the set threshold, thereby throttling flow to maintain desired pressure levels. This model features a vent port that allows for remote control via other pilot or 2-way valves, enhancing its versatility and control capabilities. Notably, it can accept maximum pressure at port 2 and is suitable for cross-port relief circuits, although spool leakage should be considered in such applications. The valve includes a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. However, it is not recommended for load holding applications due to potential spool leakage. The back pressure on the tank port directly affects the valve setting at a 1:1 ratio. For systems utilizing phosphate ester fluids, cartridges with EPDM seals are available; however, 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 model offers a typical response time of 10 ms and maintains low maximum valve leakage rates. The adjustment mechanism allows for fine-tuning with specific torque requirements for secure installation. Overall, the RVEALTV provides reliable performance with smooth operation and moderate speed, making it an ideal choice for applications requiring accurate pressure control without significant noise or instability.