SUN HYDRAULICS
RSJSLAN

***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 RSJSLAN (RSJSLAN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port pressure surpasses the valve setting. It controls the pressure at port 1 relative to the drain port 3 and is unaffected by back pressure at port 2 up to the valve setting, making it suitable for replacing two-port relief valves in systems with return line pressure. These three-port sequence cartridges are interchangeable within their frame size, maintaining consistent flow paths and cavity requirements. As inlet pressure increases relative to drain pressure beyond the valve setting, pilot flow continues to rise. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and pressure at port 3 adds directly to the valve setting at a 1:1 ratio, not exceeding 5000 psi (350 bar). The internal modulating feature helps mitigate cavitation-related issues like noise and manifold erosion. This valve accommodates maximum pressure at port 2, making it ideal for cross-port relief circuits. The Sun floating style construction minimizes binding risks from excessive installation torque or machining variations. It fits into cavity T-19A and belongs to Series 4 with a capacity of up to 120 gpm (480 L/min). Factory settings are established at 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar) and control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is approximately 2 ms, and maximum leakage upon reseat is limited to 10 drops/min (0.7 cc/min). Adjustments require up to five clockwise turns for increased settings, with specific hex sizes for installation torque and adjustment components provided for precision handling.