阀门(valve)是流体输送系统中的控制部件,具有截止、调节、导流、防止逆流、稳压、分流或溢流泄压等功能。
国内各种阀门制造标准:
类别 |
设计 |
压力温度等级 |
结构长度 |
1连接端尺寸 |
试验与检验 |
法兰端 |
对焊端 |
电站阀门 |
JB/T3595(E101) |
JB/T3595(E101) |
JB/T3595(E101) |
/ |
GB12224 (ASNIB16.25) |
JB/T3595(E101) |
低温阀门 |
JB/T7749 |
/ |
GB12221 |
JB/T79 |
GB12224 |
JB9092 |
缩径锻钢阀门 |
JB/T7746(代替ZBJ16005) |
GB9131 JB/T7746 |
GB12221 JB/T7746 GB/T15188.1 |
GB9113 |
GB12224 |
JB9092 |
蒸汽疏水阀 |
ZBJ16007 |
/ |
GB12250 |
GB4216 GB9113 |
/ |
GB12251 |
减压阀 |
GB12244 GB12246 |
/ |
JB2205 |
GB4216 GB9113 |
GB12224 |
GB/T13927 GB12245 |
安全阀 |
GB122421 GB12243 |
/ |
JB2203 |
GB9113 JB/T2769 |
GB12224 |
GB12242 |
铁制旋塞阀 |
GB12240 |
GB4216.1 GB12232 |
GB12221 GB 12240 |
GB4216 |
/ |
GB/T13927 |
隔膜阀 |
GB12239 |
选定 |
GB12221 GB12239 |
GB4216 GB9113 |
/ |
GB/T13927 |
闸阀 |
钢制楔式 |
GB12234 |
BG9131 |
GB12231 |
GB9113 GB9113 |
GB12224 |
JB/T9092 (代替ZBJ6006) |
铁制楔式 |
GB12232 |
GB4216.1 GB12232 |
GB12231 |
GB4216 GB 9113 |
/ |
GB13927 (代替GB498) |
管线钢制平板 |
JB/T5298 |
GB9131 |
JB/T5298 |
GB9113 GB9115 |
GB12224 |
JB9092 |
铁制双平板 |
JB/TQ648 |
GB4216.1 GB12232 |
JB/T5298 |
GB4216.2~5 |
/ |
GB/T13927 |
截止阀 |
钢制 |
GB12235 |
GB9131 |
GB12221 |
GB9112 |
GB12224 |
JB9092 |
铁制 |
GB12232 |
GB4216.1 GB12232 |
GB12221 GB12233 |
GB9113 |
/ |
GB/T13927 |
针形 |
JB/T7747 |
GB9131 |
GB/T15188 |
GB9116 |
GB12224 |
JB9092 |
球阀 |
钢制 |
GB12237 |
GB9131 |
GB12221 GB12237 |
GB9113 |
/ |
JB9092 |
铁制、铜制 |
GB/T15185 |
GB4216.1 GB12386 GB/T15185 |
GB12221 GB/T15188.3 |
/ |
/ |
GB13927 |
管线钢制 |
JB/T7745 |
GB9131 GB12224 |
GB12221 JB/T7745 |
GB9113 |
GB12224 |
JB9092 |
止回阀 |
钢制旋启式 |
GB12236 |
GB9131 |
GB12221 |
GB9113 GB4216 GB12380 |
GB12224 |
JB9092 |
铁制旋启式 |
GB/T13932 |
GB4316.1 GB12232 |
GB12221 JB/T3932 |
GB9113 GB/T13402 |
/ |
GB13927 |
钢制升降式 |
GB12235 |
GB9131 |
GB12221 |
GB9112 GB9113 |
|
JB9092 |
铁制升降式 |
GB12233 |
GB4316.1 GB12232 |
GB12221 GB12233 |
GB4216 GB9113 |
/ |
GB13927 |
蝶阀 |
法兰、对夹 |
GB12238 |
GB9131 GB4216.1 GB12232 |
GB12221 |
GB4216.2~4 GB9113 |
GB12224 |
GB13927 |
金属密封 |
JB/T8527 |
GB9131 GB12386 |
GB12221 GB/T15188.2 |
GB9113 GB9115 GB12380 |
/ |
GB13927 |
烟道 |
JB/T8692 |
GB9131 |
GB12221 GB/T15188.2 |
GB9115 |
/ |
JB9092 |