SUN HYDRAULICS
RVEDKAV

***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 RVEDKAV (RVEDKAV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. When the inlet port 1 pressure reaches the valve setting, it opens to tank port 2, throttling flow to regulate pressure. The valve features a vent port 3 for remote control and a drain port 4 that renders it insensitive to back pressure. Known for its accuracy and low-pressure rise versus flow, the RVEDKAV operates smoothly and quietly with moderate speed. This model can accept maximum pressure at port 2, making it suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. It is not recommended for load holding applications due to potential leakage. The main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve's setting directly correlates with the pressure at port 4 at a 1:1 ratio and should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The RVEDKAV can be specified with or without special settings using W or Y controls, adjustable throughout their range unless a special maximum setting is specified. Incorporating Sun's floating style construction minimizes internal part binding risks from excessive installation torque or cavity machining variations. It fits into Cavity T-22A Series 2 and has a capacity of up to 30 gpm (120 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with maximum operating pressures of up to 5000 psi (350 bar). Control pilot flow ranges between 10-15 in\u00b3/min (0.16-0.25 L/min), while typical response time is around 10 ms. Maximum valve leakage at specific conditions is rated at approximately 3 in\u00b3/min (50 cc/min).