How to prevent freezing in winter

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I encountered the following problems during the anti-freezing process of my device. How do you resolve these issues within the device? 1. Steam from public stations. We usually turn everything off; during inspections, we drain the water. There are also leaks in many steam valves, so rubber hoses are used to connect them to the drain trench, which prevents excessive steam from escaping. 2. There is leakage at the steam trap assembly – the steam traps are not functioning properly, and the pressure of the condensed water returning to the system is high, making it difficult for the water to flow back. If the water is not drained for an extended period, the pipes will freeze. 3. In the instrumentation section of the shutdown device, the instruments were opened for venting, resulting in internal leakage in the primary valves, which caused dripping water and ice accumulation at the site. 4. Inadequate maintenance of the steam valves led to severe rusting of the pipelines, as well as internal leakage in the valves, leakage from the valve bodies, and leakage from the valve packing