一、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 硝酸类 | 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℃ |
二、Q21F二片式外螺纹球阀主要零件材料Materials of main parts
零件名称 Description of parts | Q21F-(16-64)C | | |
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| | 聚四氟乙烯Polytetrafluorethylene(PTEE) |
| | 聚四氟乙烯Polytetrafluorethylene(PTEE) |
| 三、Q21F二片式外螺纹球阀主要外形尺寸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 | 1¼" | 22 | 120 | 52x2 | 20 | 53 | 64 | 135 |
| 40 | 1½" | 26 | 135 | 60x3 | 25 | 62 | 75 | 160 |
| 50 | 2" | 32 | 140 | 72x3 | 25 | 73 | 79 | 170 |
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