GB/T585-1999船用法兰铸钢截止止回阀性能规范TechnicalData公称压力NominalPressure(MPa)公称通径NominalDiameter(mm)适用介质ApplicableMedium1.065～300淡水、滑油、燃油和t≤300℃蒸汽Freshwater,Lubricantingoil,Fueloil,t≤300℃steam.1.6100～2502.520～1504.065～100淡水、滑油、燃油和t≤400℃蒸汽Freshwater,Lubricantingoil,Fueloil,t≤400℃steam.6.420～50)