Aeration devices designed to satisfy ventilation requirement of liquid hydrocarbons and dangerous goods of class III ( flammable liquid materials) compartments tanker.
The 3 functions series, equipped with safety devices to excessive pressure, depression, and finally with grid break flame, is suitable for mounting on transportable tanks (GIR) compliant to ADR regulamentation.
The 5 functions model (item 80.28.00), it has over the previous ones, of a further two safety devices for low pressure and overturn. The overturn device composed by a shutter that sets low pressure function when gradient of tank reaches or exceeds 27°.
Designed to be mounted on the external side of compartment through mounting hole on manhole cover or directly on tank after welding of a flange.