SUN HYDRAULICS
RSJSKBN

***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 RSJSKBN (RSJSKBN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet pressure at port 1 exceeds the valve setting. This valve is engineered to control pressure at port 1 relative to the drain port 3, and it remains unaffected by back pressure at port 2 up to the valve setting. It can replace 2-port relief valves in systems with return line pressure and is compatible with cross-port relief circuits. The RSJSKBN features interchangeable functionality across all 3-port sequence cartridges, ensuring consistent flow paths and cavity compatibility for a given frame size. The valve's pilot flow increases as the inlet pressure at port 1 surpasses the drain pressure at port 3 beyond the set point, with protection provided by a main stage orifice shielded by a 150-micron stainless steel screen. The pressure at port 3 directly adds to the valve setting on a one-to-one basis, not exceeding 5000 psi (350 bar). Internal modulation within the cartridge makes these valves resistant to cavitation issues such as noise and manifold erosion. The Sun floating style construction minimizes internal binding risks due to excessive installation torque or machining variations. With a capacity of up to 120 gpm (480 L/min), maximum operating pressure of 5000 psi (350 bar), and typical response time of just 2 ms, this robust component offers reliable performance in demanding hydraulic applications. The RSJSKBN model includes an adjustment mechanism for increasing settings via clockwise turns, complemented by specific torque requirements for installation and locknut adjustments. Additionally, it comes equipped with Viton seals for enhanced durability in various operational conditions.