SUN HYDRAULICS
FRDCKBN

***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 FRDCKBN (Material Number: FRDCKBN) is a specialized hydraulic valve designed to control flow in the bypass mode only, enhancing system stability in particular applications. A modification of the FRDA model, this valve ceases to pressure compensate priority flow when bypass pressure exceeds that at the priority port. Users can specify a flow rating, with factory settings accurate within 10% of the requested rate. The valve features a maximum operating pressure of 5000 psi (350 bar) and can handle an input flow up to 30 gpm (120 L/min). The sharp-edged orifice design minimizes flow variations due to changes in viscosity, while a tuneable adjustment control option allows for up to 25% variation from the nominal factory preset flow. This adjustment is achieved with three turns of an internal hex adjustment screw. The valve\u2019s construction incorporates Sun's floating style design, reducing the risk of internal parts binding due to excessive installation torque or machining variations. It fits into cavity T-2A and has a capacity of 12 gpm (45 L/min). For installation, it requires a torque between 45-50 lbf-ft (61-68 Nm), and its locknut should be tightened to 80-90 lbf-in (9-10 Nm). The model weighs approximately 0.40 lb (0.20 kg) and uses Viton seal kits for cartridge sealing. This valve is ideal for applications where priority flow requirements must be met before bypass flow becomes available, ensuring efficient operation even under varying conditions.