| 摘要 |
A pressure gauge (10) comprising a pressure measuring and indicating part (11) for measuring a pressure and indicating it by an indication needle, a mounting part (21) extending from the pressure measuring and indicating part and in which a pressure detection passage (22) is formed, and an orifice member (60) disposed in the pressure detection passage to form an orifice (62). Accordingly, the internal mechanism of the pressure gauge is prevented from being damaged due to the fluctuation of pressure. An orifice may be formed in a part of the pressure detection passage in place of installing the orifice member therein. Further, a pressure gauge assembly (1) comprises the pressure gauge (10) having the mounting part in which the pressure detection passage is formed and joints (30, 40) connecting the mounting part of the pressure gauge to a line. An orifice (49) is formed in a part of the internal passage of each of the joints. |
