Steam trap

Thermostatic radiator steam trap

Our low and medium pressure thermostatic steam traps are designed for operating pressures up to 25 PSI and capacities up to 700 EDR. Our radiator hatches meet the highest standards in the industry.


  • 5 models available: AP, SW, LH, VS, VST
  • 3 dimensions available: ½’’, ¾’’ and 1’’
  •  Simple and robust construction
  • Easy maintenance
  • Steam hatches in stock


Fix your air infiltration problems with the Berner Air Curtain!

Berner air curtains offer a solution to the problem of infiltration of cold air in winter or hot air in summer. With its continuous jet of air, our air curtains can reduce air, insect and vehicle emissions by up to 85% when your doors are open and without obstructing your view!