SUN HYDRAULICS
RVIBLAN

***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 RVIBLAN (RVIBLAN) is a three-port normally closed modulating element with relief, designed to provide dual functionality when paired with an external orifice. This hydraulic component acts as a bypass compensator, controlling priority flow into a circuit as determined by the external orifice. Any input flow that exceeds this priority flow is redirected to the tank port 2. Additionally, if the pressure at inlet port 1 reaches the valve's set threshold, it functions as a conventional relief valve. The valve compensates pressure for all ranges at 90 psi (6 bar). Its performance curve illustrates system pressure on the X-axis and the differential pressure created across the control orifice on the Y-axis. The curves indicate various bypass flows, which are defined as pump flow minus control flow; however, control flow does not affect capacity and performance. This model is suitable for systems utilizing phosphate ester fluids when configured with EPDM seals, though exposure to petroleum-based fluids can damage these seals. It operates within a maximum pressure of 5000 psi (350 bar) and has a typical response time of 10 ms. The valve's maximum leakage rate at 110 SUS (24 cSt) is specified at 5 in\u00b3/min (80 cc/min) under conditions of 1000 psi (70 bar). Installation requires specific torque settings: valve installation torque ranges from 350 to 375 lbf-ft (474 to 508 Nm), while locknut torque should be between 80 and 90 lbf-in (9 to 10 Nm). The RVIBLAN model weighs approximately 3.10 lb (1.40 kg) and uses Viton seal kits for its cartridges.