SUN HYDRAULICS
SCCBLCV

***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 SCCBLCV (SCCBLCV) is an atmospherically referenced, direct-acting sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 exceeds the valve setting. This model includes an integral check valve that allows reverse flow from port 2 to port 1, making it suitable for load-holding applications where a drain connection is not feasible. The design incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. The valve operates at a maximum capacity of 15 gpm (60 L/min) and can withstand pressures up to 5000 psi (350 bar). It features a typical response time of 2 ms and has a maximum leakage rate at reseat of 10 drops/min (0.7 cc/min). The check cracking pressure is set at 40 psi (2.8 bar), and adjustments can be made with up to five clockwise turns to increase the setting. The valve has specific installation requirements, including a hex size of 7/8 in. (22.2 mm) and installation torque between 30 - 35 lbf ft (41 - 47 Nm). It weighs approximately .30 lb (.15 kg) and uses a Viton seal kit for optimal performance. Over time, some fluid may enter the vented spring chamber, with approximately one drop (0.07 cc) passing every 4000 cycles, which should be considered in maintenance planning.