SUN HYDRAULICS
RVCBKDN

***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 RVCBKDN (RVCBKDN) is a three-port normally closed modulating element with relief that offers dual functionality when used in conjunction with an external orifice. Serving as a bypass compensator, the mainstage of this valve regulates a priority flow into the circuit, which is determined by the external orifice. Any input flow that exceeds this priority flow is redirected to tank port 2. Additionally, if the pressure at inlet port 1 surpasses the valve's set level, it functions as a standard relief valve. The compensating pressure varies by range: 45 psi (3 bar) for range A, 30 psi (2 bar) for range B, and 100 psi (7 bar) for range C. Performance curves illustrate system pressure on the X-axis and pressure differential across the control orifice on the Y-axis, with curves representing different bypass flows\u2014highlighting that valve capacity and performance are dictated by bypass flow rather than control flow. This model fits into cavity T-11A Series 1 and has a capacity of up to 10 gpm (40 L/min). It can handle a maximum operating pressure of 5000 psi (350 bar), with typical response times around 10 ms. The maximum valve leakage at 110 SUS (24 cSt) is approximately 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Adjustments to increase settings require about five full clockwise turns, while installation torque for the valve ranges from 30 to 35 lbf ft (41 to 47 Nm). The adjustment screw features an internal hex size of \\(\\frac{5}{32}\\) in. (4 mm), and locknut torque should be between 80 to 90 lbf in. (9 to 10 Nm). This model weighs approximately .40 lb (.20 kg) and utilizes Viton seal kits identified as cartridge number 990011006.