SUN HYDRAULICS
FPHKEEN71299

***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 FPHKEEN71299 (FPHKEEN71299) is a pilot-operated, normally closed, electroproportional throttle valve featuring a reverse free flow check. This advanced valve design allows for metered flow from port 1 to port 2, with reverse free flow capabilities from port 2 to port 1. It operates under pressures up to 5000 psi and is compatible with Sun's interchangeable coils, which can be mounted in either direction on the solenoid tube. The valve is engineered for optimal performance when paired with an amplifier that supports current sensing and adjustable dither, ideally between 100 and 250 Hz. The FPHKEEN71299 incorporates Sun's floating style construction, minimizing potential internal binding due to installation torque or machining variations. It features a range of manual override options, including a momentary-twist override that allows the operator to manually shift the valve by twisting the override clockwise by 90 degrees. This model fits into a T16A cavity and belongs to Series 3, offering a capacity of up to 60 gallons per minute (240 liters per minute). For ease of maintenance and customization, it includes Viton seal kits for both the cartridge (990016006) and coil (990770006). The valve's leakage rate is minimal at just 10 drops per minute at maximum pressure. With installation torque requirements between 150 to 160 lbf-ft (203 to 217 Nm), it provides robust performance in demanding applications while maintaining flexibility through its manual override choices.