SUN HYDRAULICS
RSHCCBN

***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 RSHCCBN (RSHCCBN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet pressure at port 1 exceeds the valve setting. This sequence valve regulates the pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It is suitable for regulating pressure in place of 2-port relief valves when there is pressure in the return line. All three-port sequence cartridges are interchangeable in terms of flow path and cavity size for a given frame size. As the inlet pressure at port 1 rises above the valve setting, pilot flow increases correspondingly. A key feature includes a main stage orifice protected by a 150-micron stainless steel screen, with the pressure at port 3 directly adding to the valve setting at a ratio of 1:1, not exceeding a maximum of 5000 psi (350 bar). However, it is not suitable for load-holding applications due to spool leakage. The RSHCCBN incorporates Sun's floating style construction to minimize binding risks from excessive installation torque or machining variations. The capacity of this valve is rated at 60 gpm (240 L/min), with factory pressure settings established at 4 gpm (15 L/min) and maximum operating pressures reaching up to 5000 psi (350 bar). Control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 10 milliseconds and maximum leakage rates of approximately 4 in\u00b3/min (65 cc/min) under specific conditions. The adjustment mechanism allows for fine-tuning throughout its full range using W or Y controls unless specified otherwise for special settings. Installation requires specific torque values, and it features an internal hex adjustment screw and locknut for secure settings adjustments.