SUN HYDRAULICS
RVEDKBV

***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 RVEDKBV (RVEDKBV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet port 1 pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. It features a vent port (port 3) for remote control via other pilot or two-way valves and a drain port (port 4) that ensures insensitivity to back pressure. Notably accurate and smooth in operation, this valve is capable of accepting maximum pressure at port 2 and is 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. However, it\u2019s not recommended for load-holding applications due to potential spool leakage. The valve accommodates a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 30 gpm (120 L/min). Its response time is typically around 10 ms with minimal leakage under specified conditions. The adjustment mechanism allows full-range control via W or Y controls unless a special setting is specified, which then becomes the maximum setting. The design incorporates Sun's floating style construction to mitigate internal binding risks due to installation torque or machining variations. For systems utilizing phosphate ester fluids, cartridges with EPDM seals are available; however, these seals are incompatible with petroleum-based substances. The RVEDKBV model has specific installation requirements including torque specifications and hex sizes for adjustment screws and locknuts. This product exemplifies reliability in hydraulic systems requiring precise pressure management without susceptibility to back pressures.