SUN HYDRAULICS
RPESLCN

***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 RPESLCN (RPESLCN) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation. This normally closed valve opens to the tank port when the inlet pressure reaches its set point, effectively throttling flow to maintain consistent pressure levels. It boasts a smooth, quiet operation with low pressure rise versus flow and is immune to cavitation-related issues like noise and manifold erosion due to its internal modulation. The valve can handle maximum pressure at port 2, making it suitable for cross-port relief circuits and load-holding applications. It remains effective across varying oil temperatures and contamination levels, thanks in part to a 150-micron stainless steel screen protecting the main stage orifice. The RPESLCN features Sun's floating style construction, minimizing the risk of internal part binding from excessive installation torque or machining variations. It offers an adjustable range using W or Y controls, with options for special settings that dictate maximum valve settings. The valve has a capacity of 25 gpm (95 L/min) and can operate at pressures up to 5000 psi (350 bar), with typical response times around 7 ms. Leakage is minimal at 10 drops/min under specific conditions. Installation requires a torque of 30-35 lbf ft (41-47 Nm), with adjustments made via a screw with an internal hex size of 5/32 in (4 mm). The locknut has a hex size of 9/16 in (15 mm) and requires a torque of 80-90 lbf in (9-10 Nm). Weighing just .30 lb (.15 kg), it comes equipped with Viton seals as standard, ensuring durability and reliability in demanding environments.