SUN HYDRAULICS
SCEAKBN

***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 SCEAKBN (SCEAKBN) is a direct-acting sequence valve with a reverse flow check, designed to supply a secondary circuit with flow once the inlet port pressure surpasses the valve setting. This model features an integral check valve facilitating reverse flow from port 2 to port 1. The pressure setting at port 1 is controlled relative to the drain port 3, which must be connected to maintain a proper pressure reference in the control chamber; blocking it can lead to valve malfunction. The pressure at port 3 directly adds to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). This model is suitable for load holding applications and offers physical and functional interchangeability among all three-port sequence cartridges of the same frame size. It incorporates Sun's floating style construction, minimizing potential internal binding due to excessive installation torque or machining variations. The SCEAKBN has a capacity of 30 gpm (120 L/min) and operates at a maximum pressure of 5000 psi (350 bar), with typical response times around 2 ms. The maximum leakage at reseat is rated at ten drops per minute (0.7 cc/min), and the check cracking pressure stands at 25 psi (1.7 bar). Adjustments are made via five clockwise turns, increasing settings, within specified torque ranges for both valve installation and locknut adjustments. Weighing approximately .60 lb (.30 kg), this model uses Viton seals for its cartridge, ensuring reliable performance in various hydraulic applications.