SUN HYDRAULICS
FRDBXBN

***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 FRDBXBN (FRDBXBN) is a 2-port restrictive flow control valve designed to fit into a 3-port cavity, specifically the T-2A cavity. This model does not connect to port 2 of the cavity, functioning effectively as a dual-port control. Customers can specify a desired flow rating, with factory settings maintaining an accuracy within 10% of the requested specification. The valve is engineered to handle a maximum pressure at port 3 of up to 3000 psi (210 bar), while its sharp-edged orifice design ensures minimal flow variation due to viscosity changes. A key feature is its tuneable adjustment control option, which allows for up to a 25% variation from the nominal factory preset flow; this adjustment is achieved through three turns of an internal hex adjustment screw. The valve's floating style construction minimizes potential binding issues caused by excessive installation torque or machining variations in the cavity/cartridge interface. The FRDBXBN model boasts a capacity of 12 gpm (45 L/min) and can operate under pressures up to 5000 psi (350 bar). It accommodates maximum input flows of up to 30 gpm (120 L/min). Installation requires specific torques: the valve hex size is 1-1/8 inches (28.6 mm) with an installation torque between 45 and 50 lbf-ft (61-68 Nm), while the locknut requires an additional torque setting between 80 and 90 lbf-in (9-10 Nm). Weighing in at just .40 lb (.20 kg), this model includes Viton seals for enhanced durability and performance.