SUN HYDRAULICS
RPISKBV

***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 RPISKBV (RPISKBV) is a pilot-operated, balanced-poppet relief cartridge designed as a normally closed pressure regulating valve. It activates when the inlet port 1 reaches the designated pressure setting, opening to tank port 2 to throttle flow and maintain regulated pressure. Known for its accuracy, smooth operation, and low noise levels, this valve is also fast-acting and exhibits minimal pressure rise with increased flow. A key feature is its immunity to cavitation issues like noise and manifold erosion due to its internal modulating mechanism. The valve can handle maximum pressure at port 2, making it suitable for cross-port relief circuits and load-holding applications. It remains stable despite varying oil temperatures or contamination due to its robust design, including a main stage orifice protected by a 150-micron stainless steel screen. Back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. The RPISKBV allows for adjustments using W or Y controls throughout its range unless specified otherwise by a special setting, which indicates the maximum setting of the valve. Designed for corrosive environments, this cartridge features corrosion-resistant options identified by model code suffixes AP or LH for external stainless steel or zinc-nickel plated components respectively. The floating style construction minimizes internal binding risks caused by excessive installation torque or machining variations. The RPISKBV fits into cavity T-16A Series 3 with a capacity of up to 100 gpm (380 L/min) and can withstand maximum operating pressures of 5000 psi (350 bar). It has a typical response time of 7 ms and allows maximum leakage of 10 drops/min at reseat. The valve weighs approximately 1.25 lb (0.60 kg) and comes with Viton seal kit part number 990316006 for maintenance needs.