SUN HYDRAULICS
SCGALCV

***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 SCGALCV (SCGALCV) is a direct-acting sequence valve with an integrated reverse flow check, designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. It features an integral check valve that allows reverse flow from port 2 to port 1. This sequence valve controls the pressure at port 1 relative to the drain port 3 and is suitable for load holding applications. The SCGALCV is built with Sun's floating style construction, minimizing internal part binding due to excessive installation torque or machining variations. This model is interchangeable with other three-port sequence cartridges in terms of flow path and cavity size. Key specifications include a cavity type T-17A, series 3, with a capacity of up to 60 gpm (240 L/min), and it operates at a maximum pressure of 5000 psi (350 bar). The factory pressure settings are established at a flow rate of 2 in\u00b3/min (30 cc/min). The response time is typically around 2 milliseconds, and maximum valve leakage at reseat is limited to 10 drops/min or approximately 0.7 cc/min. The SCGALCV includes a check cracking pressure of 25 psi (1.7 bar) and allows for adjustment via five clockwise turns to increase the setting. Installation specifics involve a valve hex size of 1-1/4 inches (31.8 mm) with an installation torque range of 150 - 160 lbf-ft (203 - 217 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut hex size is set at 9/16 inches (15 mm), requiring a locknut torque between 80 - 90 lbf-in (9 -10 Nm). Weighing approximately 1.50 lb (0.70 kg), this model uses Viton seal kits for effective sealing performance in hydraulic systems.