If not taken into account, how can the size of a steam trap be estimated?
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As the title suggests, HG/T50570-95 provides guidelines on how to determine the size of steam traps. However, for small projects like ours, there is no need to carry out any process calculations, and since there is little amount of condensate involved, are there any practical methods that can be used to determine the size of steam trap in a steam heating system in a simple manner? For example, determining the size of a steam trap based on the size of the steam pipe? Everyone is welcome to discuss
For a wrong understanding, see the instructions included with the strainer; they contain information on the diameter and the range of drainage capacity.
The question now is that design firms like ours don’t carry out any process calculations at all; usually, the client provides the process details, and we don’t even calculate the steam heating requirement, let alone the condensate volume. For example, I heard from my mentor that for an enamel tank with a capacity of 5000 liters, a DN40 pipe is used for steam supply. So how can the size of the drain valve be determined simply? Some say it should be two sizes smaller than the steam pipe – I’m not sure how others handle this in practice