H44H、H44HW、H44HY旋启式止回阀的详细资料：一、主要技术参数公称压力1.62.54.06.410.016.0强度试验2.43.86.09.615.024.0水密封试验1.82.84.46.410.016.0气密封试验0.4-0.7二、主要零件材料体、盖、板导向套销轴垫片密封面工作温度℃适用介质WCBWCB1Cr13增强柔性石墨1Cr13/柔性石墨不锈钢/耐酸石棉PTFE齿型垫片13CrSTL本体材料尼龙≤425水蒸汽油品WC6WC6≤540WC9WC9≤570ZGCr5Mo2GCr5Mo≤550ZG1Cr18Ni9TiZG1Cr18Ni9Ti1Cr18Ni9Ti≤200硝酸类ZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti≤200醋酸类三、主要外形尺寸DNLDD1D2D6bn-φdH重量H44HH44WH44Y1616P16R50230160125100-164-181361665290180145120-184-181422080310195160135-208-1816529100350215180155-208-18