SUN HYDRAULICS
FPHKXCN812N

***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 FPHKXCN812N (FPHKXCN812N) is a pilot-operated, normally closed, electroproportional throttle valve with a reverse free flow check feature. This advanced hydraulic component is designed to manage fluid flow efficiently by energizing the coil, which generates an opening force on the pilot stage, allowing the main stage poppet to open proportionally. The valve facilitates metered flow from port 1 to port 2 and allows reverse free flow from port 2 to port 1. It operates effectively under high pressures up to 5000 psi and can handle a capacity of up to 60 gallons per minute (240 liters per minute). The valve's design includes interchangeable coils that can be mounted in either direction on the tube, providing flexibility in installation. For optimal performance, it is recommended to use an amplifier with current sensing and adjustable dither, ideally between 100 and 250 Hz. The FPHKXCN812N model also offers several manual override options, including a momentary-twist override for manual operation by twisting the manual override clockwise by 90 degrees. This model incorporates Sun's floating style construction to reduce the risk of internal parts binding due to excessive installation torque or variations in cavity-cartridge machining. The cartridge fits into a T16A cavity and belongs to Series 3 valves. It features minimal leakage at maximum pressure conditions and requires specific torque for installation. The valve's hex size is 1-1/4 inches (31.8 mm), with a solenoid tube diameter of .75 inches (19 mm). For maintenance or replacement needs, Viton seal kits are available for both the cartridge and coil components.