建筑阀门。压力安全阀。试验和要求。
Building valves - Pressure safety valves - Tests and requirements.
建筑阀门。温度和压力组合安全阀。试验和要求。
Building valves - Combined temperature and pressure relief valves - Tests and requirements.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
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