J21/23外螺纹针型阀主要零件材料
零件名称 Part name 阀杆、阀盖 Stem, Bonnet 阀杆、阀瓣 Stem, Disc 填料 Packing
J21/3W-16P 铬镍不锈钢
Cr,Ni Stainless steel 铬镍不锈钢
Cr,Ni Stainless steel 聚四氟乙稀、柔性石墨
PTEF,Soft graphite
J21/3W-160、J21/3W -40 碳钢
High grade carbon steel 铬不锈钢
Cr,Stainless steel
J21/23外螺纹针型阀主要性能规范
型号
Type 公称压力(MPa)
Nominal Pressure 试验压力PS(MPa)Test pressure 工作压力(MPa)
Working Pressure 工作温度(℃)
Working Temperature 适用介质 Suitable
壳体
(MPa)
Shell 密封
(液)
Seal 密封
(气)
Seal
J21/3W -16 1.6 2.4 1.76 0.6 1.6 P≤540℃ 液化石油气水、
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外螺纹针型阀主要外型及连接尺寸
公称直径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