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Typical problems with group steam trapping: 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. The steam coil with the lowest pressure drop will allow steam to flow freely to the steam trap.

COM allowed to drain. Martins, Damasceno, Awada – Pronto-socorro Pronto-socorro: 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.

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Freezing in cooler climates 5.

Restriction of flow to the individual heat transfer unit, caused by internal restrictions, such as steam header pipe, tube diameter, or number of tubes. The steam trap, sensing steam, will go into the closed position. Air flow differences entering the steam coils. Latent energy release and phase change which causes a reduction of caldiraria area.

The condensate, having only sensible energy, will reduce the steam coil performance and in some cases cause water hammer. Install one stream trap for each steam heat transfer 2.

Premature component failures a. Locate the steam trap below the lowest 8.

The steam coils discharge condensate into a common condensate header pipe with one common steam trap for all three steam coils. The pressure drop results from:.

Temperature control problems 2.

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In colder weather conditions, the steam coils can freeze and fail. Check valves should be installed after the steam.

One of the most important rules for steam trap 3. Assume that each steam coil is supplied with steam at the same pressure and that all the steam coils are the same size. Install a visual indication of steam trap perfor- 6.

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Three steam heated coils; the steam caldeigaria 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, etc. Carbonic acid deterioration in the condensate drainage system. Different fouling factors on the outside of the heat transfer.

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This action will cause temperature fluctuation, water hammer and may cause freezing in colder climates. Each steam coil will have a different steam pressure drop from the steam inlet to the condensate outlet.

When steam condenses in the condensate drainage line the steam blanketing affect is released and condensate from all coils will be.