Distributore manuale idraulico in rendering 3D con azionamento a leva per il controllo della direzione del flusso.

4-Way Manual Control Valve for High Pressure

Technical Description

The 4L series 4-way manually operated directional control valves are specifically designed for high-pressure applications. The valve system features a balanced spool design, ensuring that the operating force remains constant regardless of pressure. The valves are available in a version with a spring for automatic return of the lever to the center position or with a detent mechanism to hold the lever in the desired position.

Two internal connection configurations between the ports are typically available to meet any system requirement. The S outlet port can withstand the maximum pressure, allowing for the series connection of multiple valves in the A version (open center). The valves can also be supplied in a special version for specific use in shipbuilding.

Technical Specifications

ModelThreaded Ports
(B.S.P.)
Max. Pressure
(bar)
Pressure
Drop
Continuous Operating TemperatureFluid TemperaturePermitted
Fluid
Surface ProtectionRecommended Viscosity
4L-15F-33/4″420see diagrams-20°C / 85°C-15°C / 80°CMineral oil DIN51524-51525From 2.5 to 400 cSt (from 1 to 50°E)35 cSt (4.5°E) a 50°C
4L-20F-31″450see diagrams