SUN HYDRAULICS
RPISLQV

***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 RPISLQV (Material Number: RPISLQV) is a pilot-operated, balanced-poppet relief cartridge designed to function as a normally closed pressure-regulating valve. It operates by opening to the tank port when the inlet pressure reaches the valve's set point, thereby throttling flow to maintain regulated pressure. This cartridge valve is known for its accuracy, smooth operation, quiet performance, rapid response time of approximately 7 milliseconds, and minimal pressure rise versus flow. It is particularly suitable for applications requiring cross-port relief circuits and load-holding capabilities due to its ability to accept maximum pressure at port 2 and its insensitivity to varying oil temperatures and contaminants. The valve\u2019s main stage orifice is protected by a 150-micron stainless steel screen, enhancing its durability in challenging environments. Additionally, back pressure on the tank port directly affects the valve setting at a 1:1 ratio. The RPISLQV model can be configured with corrosion-resistant components identified by suffixes AP or LH for external stainless steel or zinc-nickel plated parts. The Sun floating style construction minimizes internal part binding risks due to installation torque or machining variations. This model fits into Cavity T-16A and has a series capacity of 100 gpm (380 L/min), with factory pressure settings established at 4 gpm (15 L/min). It can handle a maximum operating pressure of 5000 psi (350 bar) with minimal leakage at reseat\u201410 drops/minute or 0.7 cc/minute. The adjustment mechanism features a number of clockwise turns up to five-and-a-half for increasing settings, with specific hex sizes provided for installation and adjustment purposes. Weighing approximately 1.25 lbs (0.60 kg), this cartridge includes Viton seal kits as part of its standard offering.