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COM allowed to drain. The steam trap, sensing steam, will go into the closed position.

Boas práticas instalação de purgadores

Freezing in cooler climates 5. Different fouling factors on the outside of the heat transfer.

Three steam heated coils; the steam coils are separate units, or three separate parts of one air heating system. Process Applications – Group Steam Trapping Practices Similar steam units unit heaters, tracers, steam coils, heat exchangers, caldeitaria. Martins, Damasceno, Awada – Pronto-socorro Pronto-socorro: Install one stream trap for each steam heat transfer 2.

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Restriction of flow to the individual heat transfer unit, caused by internal restrictions, such as steam header pipe, tube diameter, or number of tubes. Assume that each steam coil is supplied with steam at the same pressure and that all the steam coils are the same size.

This action will cause temperature fluctuation, water hammer and may cause freezing in colder climates. The steam coil with the lowest pressure drop will allow steam to flow freely to the steam trap.

Air flow differences entering the steam coils.

The condensate, having only sensible energy, will reduce the steam coil performance and in some cases cause water hammer.

When steam condenses cldeiraria the condensate drainage line the steam blanketing affect is released and condensate from all coils will be. Premature component failures a. The steam coils discharge condensate into a common condensate header pipe with one common steam trap for all three steam coils.

Carbonic acid deterioration in the condensate drainage system.

Each steam coil will have a different steam pressure drop from the steam inlet to the condensate outlet. Locate the steam trap below the lowest 8.

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Boas práticas instalação de purgadores

Typical problems with group steam caldeirarla Latent energy release and phase change which causes a reduction of occupied area. One of the most important rules for steam trap 3. 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.

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. The pressure drop results from:.

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Install a visual indication of steam trap perfor- 6. In colder weather conditions, the steam coils can freeze and fail. Temperature control problems 2.