SUN HYDRAULICS
SCEAKDV

***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 SCEAKDV (SCEAKDV) is a direct-acting sequence valve designed to efficiently manage flow in hydraulic systems by supplying a secondary circuit once the pressure at the inlet port exceeds the valve setting. This model features an integral check valve that enables reverse flow from port 2 to port 1. It is essential to connect port 3 to maintain a pressure reference in the control chamber, as blocking it may lead to malfunction due to reciprocating seal weepage. The valve's pressure setting controls the pressure at port 1 relative to drain port 3, with pressures at port 3 being additive to the valve setting at a 1:1 ratio. The SCEAKDV can handle pressures up to 5000 psi (350 bar) and is suitable for load-holding applications. It boasts a capacity of 30 gpm (120 L/min) and features Sun's floating style construction, which minimizes internal binding risks due to installation torque or machining variations. The cartridge is interchangeable with other three-port sequence cartridges of similar size, ensuring functional and physical compatibility across different setups. The factory pressure settings are established at a flow rate of 2 in/min (30 cc/min), with typical response times around 2 ms and maximum leakage rates of 10 drops/min (0.7 cc/min). Additional specifications include a check cracking pressure of 25 psi (1.7 bar), adjustment capabilities with five clockwise turns for increased settings, and specific torque requirements for installation and locknut adjustments. The unit weighs approximately .60 lb (.30 kg) and includes a Viton seal kit under part number 990202006 for maintenance purposes.