【Question】Is it okay to install a steam trap in this situation?
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As shown in the diagram: The main pipes are 1 and 2; a pipe 3 is connected in parallel between them, with a steam trap located in between. It is a diaphragm-type steam trap, and it is installed in the direction from 1 to 2. Its purpose is to supply water to pipe 1, while at the same time allowing water to flow out through pipe 2. Pipes 1 and 2 will not operate simultaneously; that is, when pipe 1 is fed with steam, pipe 2 is not, and when pipe 2 is in use, pipe 1 is not. My questions are: 1. When pipe 2 is being fed with steam, can this steam trap prevent steam from entering pipe 1? 2. From the perspective of pipe 2, the steam trap appears to be installed in reverse; could this have an impact on the steam trap over time?
1. The main function of a steam trap is to drain condensate and prevent steam leakage, but it is not intended to block the steam flow. When pipe 2 is fed with steam, if the drain valve is in good working condition, it is theoretically possible to reduce the flow of steam from pipe 2 to pipe 1, but complete prevention of such flow cannot be guaranteed. 2. Installing a check valve in the reverse direction indeed affects its proper operation and lifespan. The design of steam traps follows a certain orientation; installing them in the reverse direction may cause the internal components to malfunction, such as preventing effective drainage of condensate or resulting in poor sealing. Prolonged use in reverse orientation may accelerate the wear of the steam trap and increase the failure rate. It is recommended to reconsider the installation method of the steam trap based on its working principle and installation requirements, in order to ensure the safe and efficient operation of the system. .
I don’t understand; I’m worried about adding a check valve in the reverse direction
Using it for a long time definitely won’t work. Do you have to act like this? Install isolation valves before and after the steam trap. Open it when in use. Turn it off when not in use.
There are relevant standards for the selection and installation of steam traps; it is clearly unreasonable to use pipe 2, which is intended for steam, as a condensate collection pipe. Regardless of whether it is possible to seal off the flow from 2 to 1, leaks inside the steam trap are difficult to detect in a timely manner. (Have never heard of diaphragm-type steam traps; are they diaphragm-box type?) ) The poster can refer to \"05R407 Selection and Installation of Steam Condensate Recovery and Drainage Devices\" for guidelines.