SUN HYDRAULICS
SCEBLWN

***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 SCEBLWN (SCEBLWN) 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 inlet port 1 pressure exceeds the preset valve setting. It incorporates an integral check valve that allows reverse flow from port 2 to port 1, ensuring seamless operation in load-holding applications. The sequence valve's pressure setting controls the pressure at port 1 relative to the atmospheric vent, making it ideal for situations where a drain connection is not feasible. However, users should be aware that atmospherically referenced valves may experience external leakage or moisture ingress into the spring chamber over time. The SCEBLWN model features Sun's floating style construction, minimizing internal part binding due to excessive installation torque or machining variations in cavity/cartridge interfaces. It fits a Cavity T-5A and has a series capacity of up to 30 gpm (120 L/min) with a factory pressure setting established at 2 in/min (30 cc/min). The maximum operating pressure is rated at 5000 psi (350 bar), with typical response times around 2 ms and maximum valve leakage at reseat limited to 10 drops/min (0.7 cc/min). The check cracking pressure stands at 25 psi (1.7 bar). Adjustment parameters include up to five clockwise turns for increasing settings, with specific torque requirements for installation and adjustment components: Valve Hex Size is 1-1/8 in. (28.6 mm), Installation Torque ranges from 45 - 50 lbf ft (61 - 68 Nm), Adjustment Screw Internal Hex Size is 5/32 in. (4 mm), Locknut Hex Size is 9/16 in. (15 mm), and Locknut Torque ranges from 80 - 90 lbf in. (9 -10 Nm). The model weighs approximately .60 lb (.30 kg) and employs Viton seals for optimal performance under various conditions.