SUN HYDRAULICS
RSJSLNV

***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 RSJSLNV (RSJSLNV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 surpasses 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 can substitute for 2-port relief valves when there is pressure in the return line. The RSJSLNV model features interchangeable 3-port sequence cartridges, maintaining consistent flow paths and cavity sizes across frames. The pilot flow increases as inlet pressure rises above the valve setting relative to drain pressure, with a main stage orifice shielded by a 150-micron stainless steel screen. The maximum allowable pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). These valves are resistant to cavitation-related issues like noise and manifold erosion due to internal modulation within the cartridge. They can handle maximum pressure at port 2, making them suitable for cross-port relief circuits. The Sun floating style construction minimizes internal part binding risks due to excessive installation torque or machining variations. With a capacity of 120 gpm (480 L/min), this Series 4 cartridge operates under a maximum operating pressure of 5000 psi (350 bar) and has a control pilot flow of 15\u201320 in\u00b3/min (0.25\u20130.33 L/min). Notably, its response time is typically around 2 ms with minimal leakage upon reseating\u2014approximately ten drops per minute (0.7 cc/min). Installation torque ranges from 350\u2013375 lbf ft (474\u2013508 Nm), with adjustment facilitated by an internal hex screw size of ^5/32 in (4 mm).