Seek help: Selection of safety valves for the following operating conditions
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Operating conditions for the full-open safety valve: DN200, medium: steam, design temperature: 400°C, operating temperature: 380°C, design pressure: 4 MP, set pressure: 3.5 MP. I chose the A48Y-63C model, only to find that the safety valve associated with it can handle temperatures that high. What model of safety valve should I use?
Just contact the valve manufacturer directly and provide them with the data – that’s all! ! ! ! ! ! ! ! ! ! !
In your case, you need a safety valve with a radiator, model A48SY-4OC/64C
It is necessary to contact the manufacturer for discussion; at room temperature, the sealing surface of the safety valve’s valve core is made of PTFE material, which results in poor sealing performance at high temperatures.
The only option is the high-temperature safety valve, which is available online.
What LESSER in Germany can do. :)
For this type, domestic products can fully meet the requirements, and the production technology is already highly mature. A radiator is sufficient. Additionally, such safety valves require high setting specifications. I’m not sure which region the original poster is from; I can find out if you’d like. (The calibration standards of special inspection institutes in different regions of the country vary greatly; if the calibration process is not standardized, it may lead to leaks during use.) I have extensive experience with the setting, maintenance, and calibration of safety valves, so I can help the original poster keep an eye on things :)
Thank you so much, the problem has been solved!