SUN HYDRAULICS
RSDSCCN

***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 RSDSCCN (RSDSCCN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve setting. This sequence valve effectively regulates pressure at port 1 relative to the pressure at drain port 3, remaining insensitive to back pressure at port 2 up to the valve's setting. It can be utilized in place of two-port relief valves when there is pressure in the return line, making it suitable for load-holding applications and cross-port relief circuits. The RSDSCCN features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. With a cavity size of T-11A and Series 1 capacity of 15 gpm (60 L/min), this model operates under a maximum pressure of 5000 psi (350 bar) with typical response times around 10 ms. The valve has a factory pressure setting established at 4 gpm (15 L/min) and allows adjustment through five clockwise turns to increase settings. It also features maximum valve leakage at reseat of 10 drops/min (0.7 cc/min). Installation requires specific torque values: valve hex size is 7/8 inch (22.2 mm) with an installation torque range of 30-35 lbf ft (41-47 Nm), while locknut hex size is 9/16 inch (15 mm) with a torque range of 80-90 lbf in (9-10 Nm). Weighing .30 lb (.15 kg), this model uses Viton seal kits under part number 990011006, ensuring durability in various hydraulic applications.