J21W/M20*1.5/壓力表針型閥3/8不銹鋼螺紋截止閥主要零件材料Materials for main parts
| 零件名稱Part name | 閥桿、閥蓋Stem,Bonnet | 閥桿、閥瓣Stem,Disc | 填料Packing |
| J21W-16P | 鉻鎳不銹鋼 | 鉻鎳不銹鋼 | 聚四氟乙稀、柔性石墨PTEF,Soft graphite |
| J23W-40、J23W-160 | 優質碳鋼 | 鉻不銹鋼 |
J21W/M20*1.5/壓力表針型閥3/8不銹鋼螺紋截止閥主要性能規范
| 型號 | 公稱壓力（MPa）Nominal pressure | 試驗壓力PS（MPa） | 工作壓力（MPa）Working pressuer | 工作溫度（℃）Working temperature | 適用介質Applicable mediun | ||
| 殼體Shell | 密封（液）Seal | 密封（氣）Seal | |||||
| J23W-16 | 1.6 | 2.4 | 1.76 | 0.6 | 1.6 | P≤200℃ | 液化石油氣水、油品等Petroleun gas Water,Oil etc. |
| J23W-40P | 4.0 | 6.0 | 4.4 | 0.6 | 4.0 | ||
| J23W-160 | 16.0 | 17.6 | 17.6 | 0.6 | 16.0 | C≤425℃ | |
| J23W-320P | 32.0 | 48.0 | 35.2 | 0.6 | 32.0 | ||
J21W/M20*1.5/壓力表針型閥3/8不銹鋼螺紋截止閥主要外形及連接尺寸(mm)
| 公稱直徑（mm）Nominal diameter | 尺 寸Dimensions | 重量（Kg）Weight | ||||||
| D0 | D1 | D2 | L | H1 | H2 | M | ||
| 6 | 70 | 14 | 6 | 135 | 96 | 106 | 20×1.5 | 0.8 |
| 10 | 80 | 18 | 10 | 156 | 115 | 125 | 24×1.5 | 1.1 |
| 15 | 100 | 22 | 15 | 180 | 122 | 132 | 30×2 | 2.0 |
| 20 | 110 | 28 | 18 | 185 | 156 | 166 | 36×2 | 3.0 |
| 25 | 140 | 33 | 22 | 185 | 169 | 180 | 42×2 | 3.2 |
