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Three steam heated coils; the steam coils are separate units, or three separate parts of one air heating system.

Boas práticas instalação de purgadores

Typical problems with group steam trapping: Martins, Damasceno, Awada – Pronto-socorro Pronto-socorro: Assume that each steam coil is supplied with steam at the same pressure and that zenai the steam coils are the same size. Carbonic acid deterioration in the condensate drainage system. Steam in the discharge line from the steam coil with the lowest pressure drop will prevent proper condensate drainage, due to the steam pressure in the condensate drainage system.


Air flow differences entering the steam coils.

In colder weather conditions, the steam coils can freeze and fail. Each steam coil will have a different steam pressure drop from the steam inlet to the condensate outlet.

The steam trap, sensing steam, will go into the closed position. Premature component failures a.

Calfeiraria of flow to the individual heat transfer unit, caused by internal restrictions, such as steam header pipe, tube diameter, or number of tubes.

Freezing in cooler climates 5. Locate the steam trap below the lowest 8. The condensate, having only sensible energy, will reduce the steam coil performance and in some cases cause water hammer. The steam coil with the lowest pressure drop will allow steam to flow freely to the steam trap. Install one stream trap for each steam heat transfer 2. This action will cause temperature fluctuation, water hammer and may cause freezing in colder climates.

Boas práticas instalação de purgadores

When steam condenses in the condensate drainage line the steam blanketing affect is released and condensate from all coils will be. Process Applications – Group Steam Trapping Practices Similar steam units unit heaters, tracers, steam coils, heat exchangers, etc.


Latent energy release and phase change which causes a reduction of occupied area. The pressure drop results from:. There are a few cases where grouping steam components to one steam trap is acceptable, but there are very few process applications where group steam trapping is acceptable. Check valves should be installed after the steam.

Temperature control problems 2. Install a visual indication of steam trap perfor- 6. COM allowed to drain.

Different fouling factors on the outside of the heat transfer. The steam coils discharge condensate into a common condensate header pipe with one common steam trap for all three steam coils. One of the most important rules for steam trap 3.