The three main operating principles of GESTRA steam traps explained:

• Bimetallic (BK Series) – opens and closes based on temperature via a bimetallic element; well suited to trace heating, low-pressure systems, and cold-start conditions
• Float (MK Series) – mechanically controlled float opens as the condensate level rises; enables continuous discharge without steam loss, ideal for steady condensate loads
• Thermodynamic (UNA Series) – disc responds to the pressure differential between condensate and steam; compact, robust, and rated for very high pressures up to 250 bar