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Condition: The boiler starts up to 100-300 kg of pressure valves, low flow, low pressure drop during normal operation, traffic flow, flow adjustable ratio of 75:1 to 100:1.
工况情况：锅炉启动时阀门压差可达100 - 300公斤，流量较小，正常运行时压差较小，流量大，流量可调比为75：1 ~ 100：1。
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