SUN HYDRAULICS
SXCALWN

***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 SXCALWN (SXCALWN) 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 regulates the pressure at port 1 relative to the drain port 3, with a maximum operating pressure of 5000 psi (350 bar). Notably, it features zero pilot flow; however, port 3 must be connected to maintain a control chamber pressure reference. Blocking port 3 can lead to malfunction due to reciprocating seal weepage. The valve's construction allows for physical and functional interchangeability among all three-port sequence cartridges of the same frame size, ensuring compatibility and ease of use. It is particularly suitable for load-holding applications and environments requiring corrosion resistance, with options for stainless steel or zinc-nickel plated external components. The SXCALWN incorporates Sun\u2019s floating style construction to minimize internal part binding due to excessive installation torque or machining variations. With a capacity of 15 gpm (60 L/min) and response time typically around 2 ms, it offers efficient performance. The factory pressure settings are established at a flow rate of 2 in\u00b3/min (30 cc/min), and its maximum valve leakage at reseat is limited to 10 drops/min (0.7 cc/min). For installation, it requires a torque between 30-35 lbf\u00b7ft (41-47 Nm), with adjustment facilitated by an internal hex screw and locknut requiring specific torque settings. The product also includes a Viton seal kit under part number 990011006 for maintenance needs.