SUN HYDRAULICS
RSJSLWV

***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 RSJSLWV (RSJSLWV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 surpasses the valve setting. This valve is engineered to control 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 be used as an alternative to two-port relief valves when there is pressure in the return line. All three-port sequence cartridges from Sun Hydraulics are physically and functionally interchangeable, maintaining consistency in flow path and cavity for a given frame size. The RSJSLWV model features a main stage orifice protected by a 150-micron stainless steel screen and can handle pressures up to 5000 psi (350 bar) at port 3, which is directly additive to the valve setting at a 1:1 ratio. Its design ensures immunity to cavitation-related issues like noise and manifold erosion due to internal modulation. The valve accepts maximum pressure at port 2, making it suitable for cross-port relief circuits, and incorporates Sun's floating style construction to minimize internal binding risks from excessive installation torque or machining variations. This Series 4 cartridge offers a capacity of 120 gpm (480 L/min) with factory pressure settings established at 4 gpm (15 L/min). It operates efficiently with a control pilot flow of 15\u201320 in\u00b3/min (0.25\u20130.33 L/min) and exhibits rapid response times typically around 2 ms. The maximum allowable leakage rate upon reseat is limited to 10 drops/min (0.7 cc/min). Installation specifications include a valve hex size of 1-5/8 inches (41.3 mm), installation torque between 350\u2013375 lbf-ft (474\u2013508 Nm), an adjustment screw internal hex size of 5/32 inches (4 mm), and locknut torque ranging from 80\u201390 lbf-in (9\u201310 Nm). The model weighs approximately 3.10 lb (1.40 kg) and utilizes Viton seal kits for optimal performance under various conditions.