SUN HYDRAULICS
RPKSYWV

***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 RPKSYWV (RPKSYWV) is a pilot-operated, balanced poppet relief cartridge designed as a normally closed pressure regulating valve. This valve is engineered to open at the inlet port when the pressure reaches a predetermined setting, allowing flow to tank port 2 to regulate system pressure efficiently. Notable for its accuracy, smooth operation, and low noise levels, this valve also features minimal pressure rise relative to flow. Its design effectively mitigates issues associated with cavitation, such as noise and manifold erosion. The RPKSYWV model can handle maximum pressure at port 2, making it suitable for cross-port relief circuits. It maintains performance consistency despite varying oil temperatures and contamination levels. The main stage orifice is safeguarded by a 150-micron stainless steel screen to ensure durability and reliability. This cartridge valve incorporates Sun's floating style construction to prevent internal parts from binding due to excessive installation torque or machining variations in the cavity or cartridge. It offers corrosion resistance with options for external stainless steel or zinc-nickel plated components identified by suffixes AP or LH respectively in the model code. The valve has a capacity of 200 gpm (760 L/min) and can operate at pressures up to 5000 psi (350 bar). It features an adjustment mechanism that allows for fine-tuning throughout its range using W or Y controls unless specified otherwise with a special setting. The RPKSYWV model's compact design includes specific dimensions such as a hex size of 1-5/8 inches (41.3 mm) and an installation torque range of 350-375 lbf ft (474-508 Nm). With a typical response time of 7 ms and minimal leakage at reseat, this valve is optimized for high-performance applications requiring precise pressure control.