SUN HYDRAULICS
SCEAKCN

***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 SCEAKCN (SCEAKCN) is a direct-acting sequence valve equipped with a reverse flow check, designed to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. This model includes an integral check valve for reverse flow from port 2 to port 1. The sequence valve's pressure setting regulates the pressure at port 1 relative to the drain port 3, and it is crucial that port 3 remains connected to maintain a pressure reference in the control chamber; blocking it can lead to malfunction due to reciprocating seal weepage. The pressure at port 3 directly adds to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). Suitable for load-holding applications, this valve features interchangeable three-port sequence cartridges with consistent flow paths and cavities for given frame sizes. Sun's floating style construction minimizes internal part binding risks due to installation torque or cavity machining variations. With a capacity of 30 gpm (120 L/min) and maximum operating pressure of 5000 psi (350 bar), this model offers typical response times of about 2 ms. The maximum valve leakage at reseat is limited to 10 drops/min (0.7 cc/min), while the check cracking pressure is set at 25 psi (1.7 bar). Adjustment involves up to five clockwise turns to increase settings, with specific hex sizes for installation and adjustment screws, as well as locknut torque specifications. Weighing .60 lb (.30 kg), this model uses Viton seal kits and incorporates design elements like zinc-nickel plating for enhanced corrosion resistance and compatibility with EPDM seals in certain configurations.