| 摘要 |
An apparatus for use with pressurized fluid supply lines which will electrically shut down a fluid pump and the machinery to which the fluid is furnished whenever a predetermined pressure drop occurs in a fluid supply line from the pump. The apparatus provides a visible indication when it is actuated by the predetermined pressure drop, so that when a series of the apparatus is used in an installation, for a plurality of lubricators or the like, the operator can readily determine which apparatus of the series was actuated by the pressure drop. Additionally, this apparatus has means for attracting and holding foreign magnetic particles in the pressurized fluid flowing through the apparatus.
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