SUN HYDRAULICS
SCCAKDV

***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 SCCAKDV (Material Number: SCCAKDV) is a direct-acting sequence valve with an integral reverse flow check, designed to manage the flow in secondary circuits once the inlet pressure at port 1 surpasses the valve setting. This valve features a built-in check valve that allows reverse flow from port 2 back to port 1, ensuring seamless operation in load-holding applications. It is essential to connect port 3 drain to maintain a proper pressure reference in the control chamber; blocking this port can cause malfunction due to seal weepage. The pressure at port 3 adds directly to the valve setting and should not exceed 5000 psi (350 bar). This cartridge-style valve is interchangeable across all three-port sequence cartridges, maintaining consistent flow paths and cavity sizes for given frame sizes. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended, as exposure to petroleum-based products can damage these seals. The corrosion-resistant model options, identified by suffixes AP or LH, provide enhanced durability in corrosive environments. The design incorporates Sun's floating style construction, minimizing potential binding of internal parts due to installation torque or machining variations. The SCCAKDV has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It offers a typical response time of 2 ms and maintains minimal leakage with a reseat rate of up to 10 drops/min (0.7 cc/min). The check cracking pressure is set at 40 psi (2.8 bar), with adjustment facilitated by up to five clockwise turns for increased settings. Installation requires specific torque values for both the valve and locknut components, ensuring secure placement and operation within hydraulic systems.