SUN HYDRAULICS
SCEBCWV

***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 SCEBCWV (SCEBCWV) is an atmospherically referenced, direct-acting sequence valve with a reverse-flow check feature. This valve is designed to supply a secondary circuit with flow once the pressure at inlet port 1 surpasses the pre-set valve threshold. It incorporates an integral check valve allowing reverse flow from port 2 to port 1. The pressure setting of this sequence valve manages the pressure at port 1 relative to atmospheric venting, making it suitable for load-holding applications where drain connections are not feasible. However, these valves may experience external leakage or moisture ingress over time due to atmospheric referencing, with approximately one drop (0.07 cc) of fluid passing into the vented spring chamber every 4000 cycles. Constructed using Sun's floating style design, this valve minimizes internal binding risks due to excessive installation torque or machining variations in cavity/cartridge setups. It fits a Cavity T-5A and belongs to Series 2 with a capacity of up to 30 gpm (120 L/min). The factory pressure settings are established at a flow rate of 2 in\u00b3/min (30 cc/min), and it can handle a maximum operating pressure of 5000 psi (350 bar). Typical response time for this model is around 2 ms, and it features a maximum leakage rate at reseat of 10 drops/min (0.7 cc/min). The check cracking pressure is set at 25 psi (1.7 bar), and adjustments can be made by turning clockwise up to five turns for increased settings. The SCEBCWV has specific installation requirements including a valve hex size of 1-1/8 inches (28.6 mm), an installation torque range of 45-50 lbf ft (61-68 Nm), an adjustment screw internal hex size of 5/32 inches (4 mm), and a locknut hex size of 9/16 inches (15 mm) with torque specifications between 80-90 lbf in (9-10 Nm). The unit weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.