Demand valve 4500 PL series
Compressed air line breathing apparatus with integrated warning device
The demand valve 4500 PL has proven itself over many years in the toughest applications. An essential feature of this demand valve is the fixed integrated warning device, which in combination with the pressure reducer DM 1900, a warning tone is emitted directly at the user's unit if the pressure drops below the minimum pressure – unmistakable and without additional air consumption.
Optional MDW
The tension reliever can be fitted with an optional medium pressure warning whistle (MDW) which, when supplied from an operational breathing air network, provides an audible warning to the wearer if the pressure falls below the required minimum supply pressure.
Body belt
Optional blue fabric with high strength metal lock.
» Fixed warning device integrated in the housing of the demand valve
» Falls into G26 group 1 (ArbMedVV), since weight <3 kg and <5 mbar breathing resistance
» Available in negative and positive pressure with all standard fittings
