Product Description
Sun FDEA-LAN
The Sun FDEA-LAN is a high-performance, standard capacity counterbalance valve designed for controlling overrunning loads and providing reliable motion control in hydraulic systems. As a vent-to-atmosphere, pilot-assisted valve, its pilot chamber is vented, making it insensitive to back pressure at port 2 (the directional valve port). This design ensures smooth, stable, and efficient operation by preventing load runaway. The FDEA-LAN is engineered to fit the standard Sun T-11A cavity, offering a compact and easy-to-integrate solution for a wide range of mobile and industrial applications requiring precise load holding and control.
Technical Specifications:
- Valve Type: Counterbalance, Pilot-to-Open, Vent-to-Atmosphere
- Cavity: T-11A
- Capacity: 15 gpm (60 L/min)
- Maximum Operating Pressure: 5000 psi (350 bar)
- Pilot Ratio: 3:1
- Control Pilot Pressure: 25 psi (1,7 bar)
- Adjustment Range: 1000 – 4000 psi (70 – 280 bar)

Sun FDEA-LAN
Shop the Sun Hydraulics FDEA-LAN, a standard capacity, vent-to-atmosphere counterbalance valve. Designed for the T-11A cavity, this valve provides superior motion and load control, ideal for applications where back pressure is a concern. Rated for up to 5000 psi.







