SUN HYDRAULICS
RPESYQV

***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 RPESYQV (RPESYQV) is a pilot-operated, balanced-poppet relief cartridge designed for pressure regulation applications. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches the set valve level, effectively throttling flow to maintain desired pressure. Known for its accuracy, smooth operation, and quick response time of approximately 7 ms, this valve features a low pressure rise versus flow and operates quietly without cavitation issues such as noise or erosion. It is also versatile, accepting maximum pressure at port 2 and suitable for cross-port relief circuits and load-holding applications. The RPESYQV is engineered to handle varying oil temperatures and contamination with minimal sensitivity. A 150-micron stainless steel screen protects its main stage orifice. The back pressure on port 2 directly adds to the valve setting at a 1:1 ratio. The valve can be adjusted throughout its range using W or Y controls unless a special setting is specified, which then represents the maximum setting. Constructed with Sun's floating style design, it minimizes internal part binding due to installation torque or machining variations. With a cavity T-10A series configuration and a capacity of up to 25 gpm (95 L/min), it operates at a maximum pressure of 5000 psi (350 bar). The valve features various adjustment specifications including an adjustment screw internal hex size of 5/32 inch (4 mm) and locknut torque ranging from 80-90 lbf in (9-10 Nm). With minimal leakage of up to 10 drops/min at 110 SUS (24 cSt), this reliable component weighs .30 lb (.15 kg) and comes with an optional Viton seal kit under material number 990310006.