SUN HYDRAULICS
RQIBCAN

***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 RQIBCAN (Material Number: RQIBCAN) is a kickdown relief cartridge designed to function similarly to a circuit breaker in hydraulic systems. This valve opens completely and remains open when the pressure at inlet port 1 surpasses the set threshold, allowing unrestricted flow from port 1 to tank port 2. The valve stays open as long as the pressure at port 1 exceeds that at port 2. To reset it, flow between these ports must cease, and pressure at port 2 must equal or exceed that at port 1. Notably, this valve is not suitable for load-holding applications, as it requires cessation of flow for resetting. It is intended for use on the actuator side of a system; if used on the pump side, pump flow must be stopped for resetting. The RQIBCAN model incorporates Sun's floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. The main stage orifice is protected by a 150-micron stainless steel screen, and backpressure on tank port 2 directly affects the valve setting in a 1:1 ratio. This cartridge valve fits into cavity T-16A and offers a capacity of up to 100 gallons per minute (380 liters per minute) with a maximum operating pressure of 5000 psi (350 bar). It features an adjustment range with five clockwise turns increasing the setting and includes specific hex sizes for installation and adjustment components. This corrosion-resistant model can be identified by external stainless steel or zinc-nickel plated components depending on configuration options. The RQIBCAN provides reliable performance in applications where rapid pressure relief is essential but should not be used where constant load holding is required due to its reset mechanism requirements.