SUN HYDRAULICS
RSFCLPE

***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 RSFCLPE (RSFCLPE) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port pressure exceeds the valve setting. This valve controls the pressure at port 1 relative to the drain port 3 and is insensitive to back pressure at port 2 up to the valve setting. It can be used to regulate pressure in place of two-port relief valves if there is pressure in the return line. The RSFCLPE features interchangeable three-port sequence cartridges, maintaining consistent flow paths and cavity dimensions for a given frame size. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and performance. The valve's design incorporates Sun's floating style construction, minimizing internal binding due to excessive installation torque or machining variations. Pressure at port 3 adds directly to the valve setting at a 1:1 ratio, with a maximum operating pressure of 5000 psi (350 bar). The RSFCLPE has an adjustable range using W or Y controls, with options for special settings that define maximum limits. It is not suitable for load-holding applications due to spool leakage. This model has a capacity of 30 gpm (120 L/min) and factory pressure settings established at 4 gpm (15 L/min). Control pilot flow ranges from 10-15 in\u00b3/min (0.16-0.25 L/min), with typical response times around 10 ms and maximum leakage of 3 in\u00b3/min at 1000 psi (50 cc/min at 70 bar). Installation requires specific torque values: valve hex size is 1-1/8 in. (28.6 mm), installation torque between 45-50 lbf\u00b7ft (61-68 Nm), adjustment screw internal hex size of 5/32 in. (4 mm), locknut hex size of 9/16 in. (15 mm), and locknut torque between 80-90 lbf\u00b7in (9-10 Nm). The model weighs approximately .50 lb (.25 kg) and utilizes Viton seal kits for cartridge configuration, ensuring compatibility with phosphate ester fluids while avoiding petroleum-based substances that could damage seals.