SUN HYDRAULICS
SCEAKDN

***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 SCEAKDN (SCEAKDN) is a direct-acting sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 surpasses the valve setting. It features an integral check valve for reverse flow from port 2 back to port 1. This model is particularly suitable for load holding applications, ensuring efficient operation by maintaining a pressure reference in the control chamber through port 3, which should not exceed 5000 psi (350 bar). The valve's pressure setting controls the pressure at port 1 relative to the drain port 3, with adjustments made possible through a screw mechanism. The SCEAKDN model incorporates Sun's floating style construction to reduce internal part binding due to excessive torque or machining variations. It supports a capacity of up to 30 gpm (120 L/min) and operates effectively with a maximum pressure of 5000 psi (350 bar). The response time is typically around 2 ms, and it ensures minimal leakage at reseat with only about 10 drops/min. The valve is interchangeable within its series, sharing physical and functional characteristics like flow path and cavity size. Additionally, it features adjustable settings with up to five clockwise turns to increase the setting and includes specifications such as a valve hex size of 1 1/8 inches (28.6 mm) and installation torque requirements between 45 - 50 lbf ft (61 - 68 Nm). The model weighs approximately .60 lb (.30 kg) and utilizes Viton seal kits for durability.