Patent ID: 7893371

Claim:
A pressure switch having a detector therein for detecting a pressure of a pressure fluid, and outputting an output signal on the basis of a pressure value detected by said detector, the pressure switch comprising: a housing having a first passage through which said pressure fluid flows; a detector accommodated inside said housing, facing said first passage, for detecting the pressure of said pressure fluid; an adapter installed into said housing and having a second passage therein that communicates with said first passage and which is arranged coaxially with said first passage; a joint coupling disposed detachably with respect to said adapter, and which is connected to piping through which said pressure fluid is supplied; and a wall portion disposed on an axis of said first and second passages, for regulating flow of said pressure fluid that flows toward said detector, wherein said joint coupling is inserted into said adapter through said second passage and is connected to said adapter by engagement of a connecting pin inserted through a pin hole formed in said adapter.