SUN HYDRAULICS
RVBBCQN

***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 RVBBCQN (RVBBCQN) is a versatile three-port normally closed modulating element with relief. It is designed to perform dual functions when paired with an external orifice. Primarily, this component acts as a bypass compensator that regulates priority flow into a circuit based on the external orifice's specifications. Any input flow surpassing the priority flow is redirected to tank port 2. Moreover, if the pressure at inlet port 1 exceeds the valve's predetermined setting, it functions as a traditional relief valve. This model features a compensating pressure for all ranges at 50 psi (3.5 bar) and boasts a maximum operating pressure of 5000 psi (350 bar). The performance curve illustrates system pressure on the X-axis against the pressure differential across the control orifice on the Y-axis, highlighting various bypass flows where capacity and performance are determined by these flows rather than control flow. The RVBBCQN fits into cavity T-163A and offers a capacity of 5 gpm (20 L/min), with factory pressure settings established at 4 gpm (15 L/min). It exhibits a typical response time of 10 ms and maximum valve leakage at 110 SUS (24 cSt) of 2 in\u00b3/min (30 cc/min) at 1000 psi (70 bar). For installation, it requires a valve hex size of 3/4 inch (19.1 mm) and should be torqued between 20-25 lbf ft (27-33 Nm). Adjustments are made via an internal hex screw size of 5/32 inch (4 mm), with locknut adjustments requiring torque between 80-90 lbf in (9-10 Nm). This model weighs approximately .30 lb (.15 kg) and uses Viton seal kits under cartridge number 990163006.