Thermostatic steam traps

The operation principle of the GESTRA MK steam traps is based on the pressure and temperature controlled mono-membrane regulator. An alcohol and water solution is used as the control media in the regulator. By adding alcohol to water, the boiling point of water is reduced compared to just using pure water.

Using this technique, a quickly functioning steam trap is achieved that closes already itself a little before the live steam flows through the trap. Therefore, the live steam losses of the steam traps amount to 0 kg/h.

Quick opening/closing steam trap

The model is ideally suited for sites where the pressures and condensate quantities are relatively low. Due to the faster reaction, it is ideal for sites where the loads are rapidly changing or the system should often be opened or closed.

Due to their good air exhaust properties, the thermostatic steam traps can also be used as air bleeding and degassing units in the steam systems. The steam traps of the MK series are also suitable for outdoor use.


  • DN 15-50
  • PN 40
  • Laipoin, kiertein, hitsausmuhvein, hitsauspäin
  • C22.8, AISI 316L

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