SUN HYDRAULICS
RSHSLNV

***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 RSHSLNV (RSHSLNV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. This model is engineered to control pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can regulate pressure in place of two-port relief valves if there is return line pressure. The RSHSLNV features interchangeable three-port sequence cartridges that share the same flow path and cavity for a given frame size. As inlet pressure at port 1 rises above the setting, pilot flow increases, with the main stage orifice safeguarded by a 150-micron stainless steel screen. The valve's setting is directly influenced by port 3 pressure at a 1:1 ratio, with a maximum allowable pressure of 5000 psi (350 bar). This model is suitable for load-holding applications and mitigates cavitation issues such as noise and manifold erosion due to internal modulation within the cartridge. It can handle maximum pressure at port 2, making it ideal for cross-port relief circuits. The Sun floating style construction minimizes internal part binding risks from excessive installation torque or cavity/cartridge machining variations. Key specifications include Cavity T-17A, Series 3 capacity of 60 gpm (240 L/min), factory settings established at 4 gpm (15 L/min), and typical response time of 10 ms. Maximum operating pressure is rated at 5000 psi (350 bar), with leakage at reseat capped at ten drops/minute (0.7 cc/min). Adjustment involves five clockwise turns to increase settings, with installation torque between 150-160 lbf ft (203-217 Nm).