SUN HYDRAULICS
RVBBLNN

***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 RVBBLNN (RVBBLNN) is a three-port normally closed modulating element with relief, designed to provide dual functionalities when paired with an external orifice. This component serves as a bypass compensator, precisely controlling priority flow into the circuit based on the external orifice's specifications. Excess input flow beyond the priority level is efficiently redirected to tank port 2. In scenarios where the pressure at inlet port 1 escalates to match the valve's preset threshold, it operates akin to a conventional relief valve. The compensating pressure across all ranges stands at 50 psi (3.5 bar). Performance curves for this valve illustrate system pressure on the X-axis against the pressure differential created across the control orifice on the Y-axis, showcasing various bypass flows which are indicative of pump flow minus control flow. Notably, this valve's capacity and performance are dictated by bypass flow alone, rendering control flow inconsequential. The RVBBLNN model fits into a T-163A cavity and boasts a capacity of 5 gpm (20 L/min), with factory pressure settings established at 4 gpm (15 L/min). It can withstand a maximum operating pressure of 5000 psi (350 bar) and features a typical response time of 10 ms. Maximum valve leakage is limited to 2 in\u00b3/min at 110 SUS (24 cSt) under a pressure of 1000 psi (70 bar). Adjustments can be made via clockwise turns up to 5.5 times for increased setting adjustments. The valve has specific installation requirements including a hex size of 3/4 inch (19.1 mm) and an installation torque range of 20-25 lbf ft (27-33 Nm). The adjustment screw features an internal hex size of 5/32 inch (4 mm), while its locknut requires a hex size of 9/16 inch (15 mm) and locknut torque between 80-90 lbf in (9-10 Nm). The model weighs .30 lb (.15 kg) and utilizes Viton seal kits for optimal performance.