SUN HYDRAULICS
RPGEMAV

***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 RPGEMAV (RPGEMAV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens rapidly but may sacrifice smoothness in operation. When the inlet port 1 pressure reaches the set threshold, the valve opens to tank port 2, controlling flow to limit pressure rise. It features low pressure rise versus flow and exceptionally quick response times. The RPGEMAV is interchangeable with other 2-port relief cartridges of the same frame size, sharing identical flow paths and cavity configurations. It can handle maximum pressures at port 2 and is suitable for cross-port relief circuits, although spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, yet this valve is not suitable for load-holding applications due to potential leakage. Back pressure at tank port 2 directly affects the valve setting at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluid systems but can be damaged by petroleum-based fluids or lubricants. The Sun floating style construction reduces risks of internal part binding from excessive torque or machining variations. Key specifications include a T-3A cavity type, Series 2 capacity of up to 50 gpm (200 L/min), and a factory pressure setting established at 4 gpm (15 L/min). Its maximum operating pressure reaches up to 5000 psi (350 bar) with typical response times around 2 ms. Maximum valve leakage at specific conditions is minimal at approximately 3 in\u00b3/min (50 cc/min). Installation requires specific torque settings for both the valve and locknut components, ensuring secure placement and function within hydraulic systems.