SUN HYDRAULICS
RPGDAIN

***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 RPGDAIN (RPGDAIN) is an air-controlled, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This valve utilizes compressed air over a diaphragm instead of an adjustable spring to set the pressure, providing a normally closed pressure regulating function. The air signal is introduced through a port located in the hex end of the cartridge. When the inlet port 1 reaches the designated pressure setting, the valve opens to tank port 2, effectively throttling flow to maintain consistent pressure levels. Notable for its accuracy and low pressure rise versus flow, this valve operates smoothly and quietly with moderate speed. The RPGDAIN is capable of handling maximum pressures up to 2000 psi (140 bar) and can accept maximum air pressures up to 150 psi (10.5 bar). It is suitable for use in cross-port relief circuits and features a floating style construction that minimizes internal part binding due to excessive installation torque or cavity machining variations. This design ensures reliability and ease of maintenance. With a capacity of 50 gpm (200 L/min) and a pilot ratio of 20:1, this cartridge provides efficient performance with minimal leakage\u2014maximum valve leakage at 110 SUS (24 cSt) is just 3 in\u00b3/min (50 cc/min) at 1000 psi (70 bar). The response time is typically around 10 ms, offering quick adjustments as needed. The valve's hex size measures at 1-1/8 inches (28.6 mm), with an installation torque range between 45-50 lbf ft (61-68 Nm). Weighing approximately .50 lb (.25 kg), it also supports Viton seal kits for enhanced durability under various operating conditions.