SUN HYDRAULICS
SCEBKAV

***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 SCEBKAV (SCEBKAV) is an atmospherically referenced, direct-acting sequence valve with a reverse flow check feature. It is designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve setting. This model incorporates an integral check valve to allow reverse flow from port 2 to port 1. The valve's pressure setting controls the pressure at port 1 relative to atmospheric pressure, making it suitable for load-holding applications where a drain connection is not feasible. Over time, these valves may leak externally or allow moisture into the spring chamber, with approximately one drop (0.07 cc) of fluid entering the vented spring chamber every 4000 cycles. The SCEBKAV uses Sun's floating style construction to minimize internal binding due to installation torque or machining variations in cavity/cartridge designs. It features a T-5A cavity and has a capacity of 30 gpm (120 L/min). The factory pressure settings are established at 2 in/min (30 cc/min), with a maximum operating pressure of 5000 psi (350 bar). The valve exhibits a typical response time of 2 ms and allows for maximum leakage of up to 10 drops/min (0.7 cc/min) at reseat. The check cracking pressure is set at 25 psi (1.7 bar). For adjustment, the valve requires approximately five clockwise turns to increase the setting, while its hex size measures 1-1/8 inches (28.6 mm) with an installation torque range of 45-50 lbf ft (61-68 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), and its locknut measures 9/16 inches (15 mm) with a torque specification of 80-90 lbf in (9-10 Nm). Weighing in at .60 lb (.30 kg), this model also includes a Viton seal kit under cartridge number 990203006 for maintenance purposes.