SUN HYDRAULICS
SCCAKAV

***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 SCCAKAV (Material Number: SCCAKAV) is a direct-acting sequence valve with reverse flow check, designed to supply a secondary circuit with flow once the inlet port pressure exceeds the valve setting. This model features an integral check valve that enables reverse flow from port 2 to port 1. The sequence valve's pressure setting controls the pressure at port 1 relative to the drain port 3, and it is essential that port 3 remains connected to maintain proper pressure reference in the control chamber. Blocking port 3 can lead to malfunction due to reciprocating seal weepage. The maximum allowable pressure at port 3 is 5000 psi (350 bar), which is directly additive to the valve setting at a ratio of 1:1. This valve is suitable for load-holding applications and offers interchangeability among all three-port sequence cartridges, ensuring compatibility in terms of flow path and cavity size within a given frame size. Cartridges equipped with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances can damage these seals. For corrosive environments, corrosion-resistant cartridge options are available, identified by suffixes AP or LH for external stainless steel or zinc-nickel plating, respectively. The SCCAKAV model incorporates Sun's floating style construction, minimizing internal part binding due to excessive torque or machining variations. It has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The response time is typically around 2 ms, with maximum valve leakage at reseat being limited to 10 drops/min (0.7 cc/min). This model weighs approximately .30 lb (.15 kg) and features various adjustment options including clockwise turns for setting increase and specific hex sizes for installation and adjustment screws.