WESSEL Pipe Rupture Valves TYP LHB-3R


In case of a pipe or tube rupture load control valves avoid uncontrolled movement of the cylinder. They also serve for an exact and stable positioning of the boom and enable sensitive and even movement processes. Load control valves can compensate for leakages on the main control valves in older construction machines. The design LHB 3-R performs an internal regeneration circuit. The returning volume flow is dammed up by a check valve and routed into the rod side. The cylinder can thus be retracted without the need for a delivery rate of the pump. The regeneration function enables an increase in handling performance and at the same time reduces fuel consumption.


  • Meets the requirements of standards: DIN24093, ISO 8643, EN 474
  • Sensitive control
  • Increased handling performance and, at the same time, a reduction in fuel consumption
  • Start opening independently of the load pressure
  • Can be flanged directly onto the SAE cylinder
  • Pressuring limiting valve with upstream filter sieve for protecting the cylinder

Technical specifications

DesignPort sizesMaximum pressureMaximum flow rate
LHB-3RSAE 3/4 "420 bar250 l/min
LHB-3RSAE 1"420 bar250/300/400 l/min
LHB-3RSAE 1- 1/4"420 bar500 l/min
LHB 3RSAE 1- 1/2"420 bar300/400/500/600 l/min