SUN HYDRAULICS
RVBBKAN

***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 RVBBKAN (Material Number: RVBBKAN) is a versatile three-port normally closed modulating element with relief capabilities, designed for hydraulic systems requiring precise flow control and pressure regulation. This component serves dual functions when used in conjunction with an external orifice. The primary role of the mainstage is to act as a bypass compensator, which regulates priority flow into the circuit as determined by the external orifice. Any input flow exceeding this priority flow is redirected to tank port 2. Additionally, if the pressure at inlet port 1 surpasses the valve's set threshold, it functions as a conventional relief valve. The compensating pressure for all ranges is maintained at 50 psi (3.5 bar). The performance curve illustrates that system pressure is plotted on the X-axis while the Y-axis represents the pressure differential created across the control orifice by this valve. Various curves indicate different bypass flows, where pump flow minus control flow determines capacity and performance; notably, control flow does not influence these parameters. Key specifications include a cavity size of T-163A Series 0 with a capacity of 5 gpm (20 L/min), and a factory pressure setting established at 4 gpm (15 L/min). The maximum operating pressure reaches up to 5000 psi (350 bar), with a typical response time of 10 ms. Valve leakage at 110 SUS (24 cSt) measures at most 2 in\u00b3/min (30 cc/min) under conditions of 1000 psi (70 bar). For adjustments, increasing settings requires approximately five clockwise turns. Installation requires specific torque values: valve installation torque ranges from 20 to 25 lbf\u00b7ft (27 to 33 Nm), with adjustment screw internal hex size being ^5\u204432 in. (4 mm) and locknut torque between 80 to 90 lbf\u00b7in. (9 to 10 Nm). The model weighs .30 lb (.15 kg) and uses Viton seal kits for effective sealing performance.