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J21/23外螺紋針型閥結構
J21/23外螺紋針型閥主要零件材料
零件名稱 Part name | 閥桿、閥蓋 Stem, Bonnet | 閥桿、閥瓣 Stem, Disc | 填料 Packing | | J21/3W-16P | 鉻鎳不銹鋼
Cr,Ni Stainless steel | 鉻鎳不銹鋼
Cr,Ni Stainless steel | 聚四氟乙稀、柔性石墨
PTEF,Soft graphite | | J21/3W-160、J21/3W -40 | 優(yōu)質碳鋼
High grade carbon steel | 鉻不銹鋼
Cr,Stainless steel |
J21/23外螺紋針型閥主要性能規(guī)范
型號
Type | 公稱壓力（MPa）
Nominal Pressure | 試驗壓力PS（MPa）Test pressure | 工作壓力（MPa）
Working Pressure | 工作溫度(℃)
Working Temperature | 適用介質 Suitable | 殼體
（MPa）
Shell | 密封
（液）
Seal | 密封
（氣）
Seal | | J21/3W -16 | 1.6 | 2.4 | 1.76 | 0.6 | 1.6 | P≤540℃ | 液化石油氣水、
酸、蒸汽、油品等
Petroleum gas Water,Asic,Steam, Oil etc. | | J21/3W 40P | 4.0 | 6.0 | 4.4 | 0.6 | 4.0 | | J21/3W-160 | 16.0 | 24.0 | 17.6 | 0.6 | 16.0 | C≤425℃ | | J21/3W -320P | 32.0 | 48.0 | 35.2 | 0.6 | 32.0 |
J21/23外螺紋針型閥主要外型及連接尺寸
公稱直徑DN(mm)
Nominal diameter | 尺寸 Dimensions | 重量(Kg) | | Do | D1 | D2 | L | H1 | H2 | M | Weight | | 6 | 65 | 14 | 6 | 140 | 96 | 106 | 20×1.5 | 0.9 | | 10 | 80 | 18 | 10 | 160 | 115 | 125 | 24×1.5 | 1.18 | | 15 | 100 | 22 | 15 | 180 | 122 | 132 | 30×2 | 2.0 | | 20 | 110 | 28 | 18 | 220 | 156 | 166 | 36×2 | 3.5 | | 25 | 140 | 33 | 22 | 230 | 169 | 180 | 39×2 | 4.3
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