Should a steam trap be of the thermodynamic disc type or the pulse type?
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Should a steam trap be of the thermodynamic disc type or the pulse type? Which one has a better ability to resist impurities?
This post was last edited by ylb913 on 2015-11-11 at 13:44. I’m not sure how to react; I’ve never seen a pulse-type one before. ——Pulse-type steam traps have two orifices that regulate the opening and closing of the valve in response to changes in steam pressure; even when the valve is completely closed, the inlet and outlet remain connected through the first and second small orifices, resulting in an incomplete closure state. As a result, steam continues to escape, leading to high steam leakage. This steam trap has a high operating frequency, suffers severe wear, and has a short lifespan. It has a small size, is resistant to water hammer, can discharge air and water at saturated temperature, enabling nearly continuous drainage; with a maximum back pressure of 25%, it is rarely used by users.
Regarding the effectiveness against impurities, first of all, the valve must have a filter inside, which will certainly improve its ability to resist impurities. Most thermal power units available on the market come equipped with filters; it’s not certain whether pulse-type units do as well. From the perspective of working principle, thermal dynamics certainly offers better performance in terms of resistance to impurities; specifically, the structure of thermal dynamics allows small impurities to pass through its sealing surfaces, while the pulsed nature of this system provides a certain level of obstruction to the passage of impurities through those sealing surfaces.
An obvious pulsed one is good. Thermodynamic types are relatively sensitive to impurities.