SUN HYDRAULICS
RVEDCCV

***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 RVEDCCV (RVEDCCV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. It activates when the inlet port 1 pressure reaches the valve's set point, subsequently opening to tank port 2 to throttle flow and maintain pressure. This model features a vent port 3 for remote control by other pilot or two-way valves and a drain port 4 that ensures insensitivity to back pressure. Known for its accuracy, low-pressure rise versus flow, smooth operation, and moderate speed, this valve is suitable for applications where maximum pressure acceptance at port 2 is required. However, it is not recommended for load-holding applications due to spool leakage considerations. The main stage orifice is safeguarded by a 150-micron stainless steel screen. Notably, the pressure at port 4 directly adds to the valve setting at a 1:1 ratio but should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are compatible with phosphate ester fluids but can be damaged by petroleum-based substances. The RVEDCCV incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. It fits the Cavity T-22A Series 2 and has a capacity of 30 gpm (120 L/min), with factory settings established at a flow of 4 gpm (15 L/min). The maximum operating pressure is set at 5000 psi (350 bar), with control pilot flow ranging from 10 to 15 in\u00b3/min (0.16 - 0.25 L/min) and typical response time of about ten milliseconds. Maximum valve leakage is rated at three in\u00b3/min at 110 SUS (24 cSt) under conditions of up to 1000 psi (70 bar).