Correct control of air direction, volume, and velocity

The LPV system is a classic negative pressure system used for ventilation of pig production facilities. The system is intended for temperate regions of the world, and it can be adapted to most livestock buildings.

In an LPV system, the wall, ceiling, or roof inlets supply fresh air. During cold periods, fresh air is mixed with the housing air before it reaches the area occupied by the pigs.

During warm periods, the air enters the same way but is sucked into the livestock house at a higher speed. It results in air circulation around the pigs, and they are cooled without perceiving the increased air circulation as a draught.

The system automatically adapts ventilation based on the outside temperature, production type, and age of the pigs.

The exhaust units are adjusted according to the Dynamic MultiStep principle, which substantially reduces the power consumption.


  • Uniform climate all year round for the pigs
  • Low energy and heating consumption
  • Low running costs, efficient chimneys, fans, and control principles
  • Emergency opening system for maximum security
  • Easy to install and low maintenance costs



Essentials in an LPV ventilation system

LPV ventilation system

Suckling piglets

Dynamic MultiStep

Air Outlet Dynamic Multistep

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