1、壓力開關裡面有一個彈簧，上面有一個壓螺帽。扭的緊是加壓，扭的松是減壓。
2、電接點式的在壓力表上。扭的緊是加壓，扭的松是減壓。
3、壓力容器的壓力标準是國家規定的，沒有測試儀器不可自行調節，否則容易出故障，甚至爆炸。應該送到當地的“壓力容器檢定所”去檢測。
農村家用壓力罐怎樣調能使進水不那麼勤
更新时间：2026-01-07 16:53:31
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