SUN HYDRAULICS
FPHKXEV2B12A

***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 FPHKXEV2B12A (FPHKXEV2B12A) is a pilot-operated, normally closed, electroproportional throttle valve featuring reverse free flow check capabilities. This valve is engineered to handle pressures up to 5000 psi, making it suitable for high-pressure applications. It operates by energizing the coil, which generates an opening force on the pilot stage, venting the main stage poppet to open proportionally. Metered flow occurs from port 1 to port 2, while reverse free flow is facilitated from port 2 to port 1. The FPHKXEV2B12A uses interchangeable coils that can be mounted in either direction and is compatible with Sun's full flow solenoid-operated valves. For optimal performance, it is recommended to use an amplifier with current sensing and adjustable dither between 100-250 Hz. The valve offers several manual override options, including a momentary-twist override that allows operation by twisting the manual override clockwise by 90 degrees. The cartridge design incorporates Sun's floating style construction to minimize internal binding risks due to excessive torque or machining variations. Key specifications include a capacity of 60 gpm (240 L/min), a maximum leakage rate of 10 drops/min at 5000 psi (0.7 cc/min at 350 bar), and a required manual override force of 5 lbs/1000 psi (33 N/100 bar). The valve installation torque ranges between 150-160 lbf ft (203-217 Nm), and it features a solenoid tube diameter of .75 in (19 mm). The FPHKXEV2B12A fits into cavity T16A and belongs to Series 3. Adding versatility, this model weighs approximately 1.50 lb without the coil and includes Viton seal kits for both cartridge and coil assemblies.