使用條件 |
連接形式 |
螺紋連接 |
法蘭連接 |
焊接 |
管螺紋 |
活接頭 |
全面座 |
平面座 |
凹凸法蘭 |
榫槽連接 |
梯形槽連接 |
承插悍 |
對接焊 |
焊 |
大 |
小 |
溫度、壓力 |
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高溫高壓 |
× |
× |
× |
× |
△ |
○ |
● |
● |
● |
● |
× |
中溫中壓 |
△ |
○ |
× |
○ |
● |
● |
● |
○ |
○ |
○ |
○ |
常溫高壓 |
● |
● |
× |
△ |
○ |
● |
○ |
○ |
○ |
× |
× |
低壓 |
● |
● |
● |
● |
● |
△ |
○ |
× |
○ |
× |
○ |
低溫 |
△ |
× |
× |
● |
● |
○ |
○ |
× |
○ |
○ |
○ |
溫度、壓力變動 |
× |
× |
× |
× |
△ |
○ |
○ |
● |
● |
● |
○ |
氣體 |
○ |
○ |
○ |
○ |
● |
● |
● |
● |
○ |
● |
○ |
爆炸性 |
△ |
△ |
× |
× |
× |
○ |
● |
● |
● |
● |
○ |
液體 |
● |
● |
● |
● |
● |
○ |
○ |
● |
○ |
○ |
● |
浸沒性 |
△ |
△ |
× |
× |
△ |
○ |
● |
● |
● |
● |
● |
其他 |
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放射性 |
× |
× |
× |
× |
× |
× |
× |
× |
● |
● |
× |
口徑 |
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<25mm |
● |
● |
○ |
○ |
○ |
× |
× |
× |
● |
× |
● |
<50mm |
● |
○ |
● |
● |
● |
△ |
△ |
○ |
● |
○ |
● |
<100mm |
● |
× |
● |
● |
● |
○ |
○ |
● |
△ |
● |
× |
>100mm |
× |
× |
● |
● |
● |
● |
● |
● |
× |
● |
× |
與管路連接的難易性 |
× |
● |
● |
● |
● |
○ |
△ |
○ |
× |
× |
× |
經濟性 |
● |
△ |
● |
● |
● |
○ |
○ |
△ |
○ |
○ |
○ |