SUN HYDRAULICS
SCCACDN

***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 SCCACDN (SCCACDN) is a direct-acting sequence valve with a reverse flow check, designed to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. It features an integral check valve that enables reverse flow from port 2 to port 1. The valve's pressure setting manages the pressure at port 1 in relation to the drain port 3, which must be connected for proper functioning. Blocking port 3 can lead to malfunction due to reciprocating seal weepage. The pressure at port 3 adds directly to the valve setting and should not exceed 5000 psi (350 bar). This valve is suitable for load-holding applications and offers physical and functional interchangeability among all three-port sequence cartridges of the same frame size. Cartridges with EPDM seals are compatible with phosphate ester fluids but can be damaged by petroleum-based substances. Corrosion-resistant options are available, identified by specific model code suffixes such as AP or LH, which denote external stainless steel or zinc-nickel plated components, respectively. The SCCACDN incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. It fits into cavity T-11A and supports a flow capacity of up to 15 gpm (60 L/min). Factory pressure settings are established at 2 in\u00b3/min (30 cc/min) with a maximum operating pressure of 5000 psi (350 bar). Typical response time is about 2 ms, with maximum valve leakage at reseat being approximately 10 drops/min (0.7 cc/min). The check cracking pressure is set at 40 psi (2.8 bar), and adjustments can be made through clockwise turns within specified torque limits for both the valve and locknut components. The model weighs approximately .30 lb (.15 kg) and utilizes Viton seal kits for maintenance purposes.