SUN HYDRAULICS
SCEALEV

***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 SCEALEV (SCEALEV) is a direct-acting sequence valve designed with an integrated reverse-flow check, making it ideal for supplying secondary circuits with flow once the inlet port pressure surpasses the valve setting. This valve features a built-in check valve allowing reverse flow from port 2 to port 1. It is essential for load-holding applications and operates effectively when the drain port 3 is connected to maintain proper pressure reference in the control chamber. The pressure at port 3 adds directly to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). The SCEALEV model is crafted with Sun's floating style construction, which reduces the risk of internal component binding due to excessive installation torque or machining variations. It supports a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 30 gpm (120 L/min). The factory pressure settings are established at 2 in/min (30 cc/min), with typical response times around 2 ms. The valve allows a maximum leakage of 10 drops/min (0.7 cc/min) at reseat, and its check cracking pressure is set at 25 psi (1.7 bar). For adjustments, turning clockwise increases the setting, and the valve hex size measures 1-1/8 in. (28.6 mm), with an installation torque between 45-50 lbf ft (61-68 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm), requiring a torque of 80-90 lbf in. (9-10 Nm). Weighing approximately .60 lb (.30 kg), this model includes Viton seal kits for enhanced durability and performance under various conditions.