SUN HYDRAULICS
SXEALWN

***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 SXEALWN (SXEALWN) is a direct-acting sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. This valve controls the pressure at port 1 relative to the drain port 3, making it suitable for load-holding applications. The SXEALWN features a zero pilot flow design, requiring port 3 to be connected to maintain a pressure reference in the control chamber. If blocked, seal weepage can lead to malfunction. It incorporates Sun's floating style construction, minimizing internal binding due to installation torque or machining variations. The valve is interchangeable with other three-port sequence cartridges of similar frame size and flow path. It supports a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 30 gpm (120 L/min). Factory pressure settings are established at 2 in/min (30 cc/min), with typical response times around 2 ms. Maximum leakage at reseat is limited to 10 drops/min (0.7 cc/min). Adjustments are made via an internal hex screw, with clockwise turns increasing the setting; up to four turns are possible. Installation requires specific torques: valve hex size is 1-1/8 in (28.6 mm) with a torque range of 45-50 lbf ft (61-68 Nm), while the locknut hex size is 9/16 in (15 mm) torqued between 80-90 lbf in (9-10 Nm). The model weighs .60 lb (.30 kg) and uses Viton seal kits for cartridge sealing, ensuring durability and performance under various conditions.