SUN HYDRAULICS
SCCACDE

***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 SCCACDE (SCCACDE) is a direct-acting sequence valve designed with an integral reverse flow check, allowing it to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. This model features an internal check valve that facilitates reverse flow from port 2 to port 1, making it suitable for load holding applications. The valve's pressure setting controls the pressure at port 1 relative to the drain port 3, which must be connected to maintain a proper pressure reference in the control chamber. Importantly, if port 3 is blocked, it can cause malfunction due to reciprocating seal weepage. The valve supports a maximum operating pressure of 5000 psi (350 bar) and has a typical response time of 2 ms. It is capable of handling a capacity of up to 15 gpm (60 L/min) and features minimal leakage at reseat with a maximum of 10 drops/min (0.7 cc/min). The SCCACDE incorporates Sun's floating style construction to prevent internal part binding due to excessive torque or machining variations. This model is physically and functionally interchangeable with other three-port sequence cartridges within the same series and frame size, offering flexibility in various applications. Additionally, EPDM seals are available for systems using phosphate ester fluids but should not be exposed to petroleum-based products as they may cause damage. For environments requiring corrosion resistance, options include external stainless steel components or zinc-nickel plating identified by specific model code suffixes. Installation requires specific torque settings for both the valve and locknut, ensuring secure and optimal performance in demanding conditions.