SUN HYDRAULICS
RSJCLEV

***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 RSJCLEV (RSJCLEV) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve setting. It controls pressure at port 1 relative to the drain port 3 and remains insensitive to back pressure at port 2 up to the valve setting. This valve can regulate pressure in place of two-port relief valves if there is pressure in the return line. All three-port sequence cartridges are interchangeable, maintaining consistent flow paths and cavity sizes for a given frame size. As inlet pressure increases relative to drain pressure, pilot flow also increases above the valve setting. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. The RSJCLEV is not suitable for load holding applications due to spool leakage but incorporates Sun's floating style construction to minimize internal binding from excessive installation torque or machining variations. It features an adjustable W or Y control, allowing full-range adjustment unless a special setting is specified for maximum adjustment. Key specifications include a T-19A cavity, Series 4 capacity of up to 120 gpm (480 L/min), and a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 15 to 20 in\u00b3/min (0.25 to 0.33 L/min), with a typical response time of 10 ms. Maximum valve leakage at 110 SUS (24 cSt) is rated at five in\u00b3/min (80 cc/min) under specific conditions. Installation requires careful attention to torque specifications: the valve hex size is 1-5/8 inches (41.3 mm), installation torque ranges from 350-375 lbf-ft (474-508 Nm), and locknut torque should be between 80-90 lbf-in (9-10 Nm). The RSJCLEV weighs approximately 3.10 lb (1.40 kg) and utilizes Viton seal kits for optimal performance.