SUN HYDRAULICS
SCEAKAV

***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 SCEAKAV (SCEAKAV) is a direct-acting sequence valve with reverse flow check, designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve setting. This model features an integral check valve that allows reverse flow from port 2 to port 1, making it suitable for load-holding applications. The pressure setting controls the pressure at port 1 relative to the drain port 3, and it is crucial that port 3 remains connected to maintain a proper pressure reference in the control chamber. The maximum pressure at port 3 should not exceed 5000 psi (350 bar), as it directly adds to the valve setting in a 1:1 ratio. This zero pilot flow valve uses Sun's floating style construction, minimizing internal parts binding due to excessive installation torque or machining variations. It offers a capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). With a typical response time of just 2 ms and maximum valve leakage at reseat of only 10 drops/min (0.7 cc/min), this model ensures efficient performance and reliability. The check cracking pressure is set at 25 psi (1.7 bar), and users can adjust settings by turning clockwise up to five turns. Installation requires specific torque settings: valve hex size of 1-1/8 in. (28.6 mm) with an installation torque of 45 - 50 lbf ft (61 - 68 Nm), an adjustment screw internal hex size of 5/32 in. (4 mm), and locknut hex size of 9/16 in. (15 mm) with locknut torque specifications between 80 - 90 lbf in. (9 -10 Nm). This model weighs approximately .60 lb (.30 kg) and includes Viton seal kits for optimal performance under various conditions.