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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(duì)接焊 | 焊 | ||
大 | 小 | ||||||||||
溫度、壓力 | |||||||||||
高溫高壓 | × | × | × | × | △ | ○ | ● | ● | ● | ● | × |
中溫中壓 | △ | ○ | × | ○ | ● | ● | ● | ○ | ○ | ○ | ○ |
常溫高壓 | ● | ● | × | △ | ○ | ● | ○ | ○ | ○ | × | × |
低壓 | ● | ● | ● | ● | ● | △ | ○ | × | ○ | × | ○ |
低溫 | △ | × | × | ● | ● | ○ | ○ | × | ○ | ○ | ○ |
溫度、壓力變動(dòng) | × | × | × | × | △ | ○ | ○ | ● | ● | ● | ○ |
氣體 | ○ | ○ | ○ | ○ | ● | ● | ● | ● | ○ | ● | ○ |
爆炸性 | △ | △ | × | × | × | ○ | ● | ● | ● | ● | ○ |
液體 | ● | ● | ● | ● | ● | ○ | ○ | ● | ○ | ○ | ● |
浸沒性 | △ | △ | × | × | △ | ○ | ● | ● | ● | ● | ● |
其他 | |||||||||||
放射性 | × | × | × | × | × | × | × | × | ● | ● | × |
口徑 | |||||||||||
<25mm | ● | ● | ○ | ○ | ○ | × | × | × | ● | × | ● |
<50mm | ● | ○ | ● | ● | ● | △ | △ | ○ | ● | ○ | ● |
<100mm | ● | × | ● | ● | ● | ○ | ○ | ● | △ | ● | × |
>100mm | × | × | ● | ● | ● | ● | ● | ● | × | ● | × |
與管路連接的難易性 | × | ● | ● | ● | ● | ○ | △ | ○ | × | × | × |
經(jīng)濟(jì)性 | ● | △ | ● | ● | ● | ○ | ○ | △ | ○ | ○ | ○ |