SUN HYDRAULICS
RPESKBV

***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 RPESKBV (RPESKBV) is a pilot-operated, balanced poppet relief cartridge valve designed for precise pressure regulation in hydraulic systems. When the inlet port 1 reaches a specified pressure setting, the valve opens to tank port 2, throttling flow to maintain desired pressure levels. Known for their accuracy and smooth operation, these valves are engineered to minimize noise and prevent manifold erosion due to cavitation. They can handle maximum pressure at port 2 and are suitable for cross-port relief circuits and load-holding applications. The valve's performance remains stable despite variations in oil temperature and contamination, thanks to its internal design features like a 150-micron stainless steel screen protecting the main stage orifice. The RPESKBV model incorporates Sun's floating style construction, reducing the risk of internal part binding from installation torque or machining variations. Its cavity is T-10A Series 1 with a capacity of 25 gpm (95 L/min), and it operates effectively up to a maximum pressure of 5000 psi (350 bar). The response time is typically around 7 ms with minimal leakage at standard conditions. The valve allows adjustment throughout its range using W or Y controls, with options for special settings representing maximum settings. Installation involves specific torque requirements: valve hex size is 7/8 inch (22.2 mm) with an installation torque of 30-35 lbf ft (41-47 Nm). The adjustment screw has an internal hex size of 5/32 inch (4 mm), while the locknut hex size is 9/16 inch (15 mm) with a torque specification of 80-90 lbf in (9-10 Nm). The cartridge seal kit uses Viton materials, ensuring durability under various operating conditions.