Festo VHER-H-B43E-B-G18 hand lever valve 3488207

Product Description

Festo VHER-H-B43E-B-G18 hand lever valve 3488207 Valve function=4/3 exhausted, Type of actuation=manual, Width=42 mm, Standard nominal flow rate=800 l/min, Operating pressure=0 – 10 bar

Hand lever valves, VHER
This valve – also included in the Festo Core Range – has a metal or polymer lever for manual operation. This valve can be used to stop single-acting or double-acting cylinders within the stroke range. With the “mid-position closed” (C types), the piston of the actuator moves until the forces are in equilibrium. With “mid-position exhausting” (E types), the piston can be moved and only the frictional forces have to be overcome. However, in the version with “mid-position pressurised” (U types), the pressure at ports 2 and 4 is the same. The piston is not moved in the case of flat surfaces. If the surfaces are different, the piston extends to the smaller surface. These valves can be mounted on front panels or via through-holes or mounting holes. VHER valves also have the option of using sensors to detect the switching position.

Mechanical and manual pneumatic valves
Mechanically and manually actuated pneumatic valves are required in pneumatic systems to regulate air pressure or the compressed air as a medium. Manually actuated means that the directional control valves are operated (opened or closed) via a pushbutton, hand lever, rotary lever, mushroom pushbutton or using a foot switch.

Plungers or roller levers operate mechanical directional control valves. Mechanically actuated pneumatic valves are often used to directly control cylinders or clamping tools.