to protect against pipe rupture
Description
Load Holding Valves prevent uncontrolled cylinder movement in the event of a pipe or hose rupture. In some countries, Load Holding Valve devices are required by law when lifting or loading work is carried out with a construction machine. They are used to position a boom exactly and stably and allow steady movements. WESSEL Load Holding Valve are characterized by very good sensitivity and a very direct transmission behavior of the joystick movement. They are also always leak-free. The load control valve in the variant 4K (compact variant) is also suitable for the smallest installation spaces.
Characteristics
- Meets the requirements of standards: DIN24093, ISO 8643, EN 474
- Start opening independent of the load pressure
- Sensitive control with low hysteresis
- Leakage-free
- Load control valve piston pressure-compensated
- Symmetrical connections to/from the control valve on the right and the left side of the load control valve
- Can be flanged directly onto the cylinder connection
- Surge line for parallel operation for the minimization of the cylinder pressure differences
- Pressuring limiting valve with upstream filter sieve for protecting the cylinder
Applications
- Boom, stick and bucket cylinders on excavators