SUN HYDRAULICS
SCIACAN

***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 SCIACAN (Material Number: SCIACAN) is a direct-acting sequence valve with an integrated reverse flow check, designed to supply a secondary circuit with flow once the inlet port pressure surpasses the valve setting. This valve features an integral check valve allowing reverse flow from port 2 to port 1, making it suitable for load-holding applications. The sequence valve controls pressure at port 1 relative to the drain port 3, with all three-port sequence cartridges being interchangeable in terms of flow path and cavity size. It is crucial that port 3 remains unblocked to maintain a pressure reference in the control chamber, as blocking could result in malfunction due to reciprocating seal weepage. The maximum allowable pressure at port 3 is additive to the valve setting at a 1:1 ratio, not exceeding 5000 psi (350 bar). This model incorporates Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. It offers a capacity of up to 120 gpm (480 L/min) and can operate under pressures up to 5000 psi (350 bar), with a typical response time of 2 milliseconds. The maximum leakage rate at reseat is specified as up to 10 drops per minute (0.7 cc/min), and it features an adjustable setting mechanism requiring up to five clockwise turns for adjustment. The SCIACAN model has specific installation and adjustment requirements, including various torque specifications for its components and compatibility with EPDM seals for systems using phosphate ester fluids only.