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Q21F二片式外螺纹球阀详细介绍 Q21F二片式外螺纹球阀 性能规范Specifications Nominal pressure:PN1.6,2.5,4.0,6.4MPa Strength testing pressure:PT2.4,3.8,6.0,9.6,MPa 公称压力:PN1.6,2.5,4.0,6.4MPa Seat testing pressure(low pressure):0.6MPa 强度试验压力:PT2.4,3.8,6.0,9.6,MPa Applicable media: 低压气密封试验压力:0.6MPa Q21F-(16-64)C Water.Oil.Gas 适用介质:Q21F-(16-64)C 水,油,气 Applicable temperature:-29~280℃ 适用温度:-29~280℃ Applicable media: 适用介质:Q21F-(16-64)P *类 Q21F-(16-64)P Nitric acid Q21F-(16-64)R 醋酸类 Q21F-(16-64R Acetic acid 适用温度:-40~280℃ Applicable temperature:-40~280℃ 主要外形尺寸Main outer size DN G d L M E Φ H W 8 1/4" 8 85 20x1.5 15 22 40 105 10 3/8" 8 85 24x1.5 16 26.5 42 105 15 1/2" 10.5 85 30x2 18 31 45 110 20 3/4" 13 90 36x2 18 37 48 110 25 1" 17 100 42x2 20 43 43 110 32 1?" 22 120 52x2 20 53 64 135 40 1?" 26 135 60x3 25 62 75 160 50 2" 32 140 72x3 25 73 79 170 主要零件材料Materials of main parts 零件名称 Description of parts Q21F-(16-64)C Q21F-(16-64)P Q21F-(16-64)R 阀体Body WCB ZG1Cr18Ni9i CF8 ZG1Cr18Ni12Mo2Ti CF8M 球体Ball 1Cr18Ni9Ti 304 1Cr18Ni9Ti 304 1Cr18Ni12Mo2Ti 316 阀杆Stem 1Cr18Ni9Ti 304 1Cr18Ni9Ti 304 1Cr18Ni12Mo2Ti 316 密封圈Sealring 聚四氟乙烯Polytetrafluorethylene(PTEE) 填料Packing 聚四氟乙烯Polytetrafluorethylene(PTEE)