| 摘要 |
PURPOSE: A multistage orifice is provided to improve maintenance work ability by facilitating the pressure control and the maintenance work. CONSTITUTION: A multistage orifice(1) comprises a decompression unit(10), a connection unit(20), a flange unit(30). The decompression unit is equipped with a decompression hole(18) inside where the decompression of the fluid occurs and the holes are consecutively installed in multistage. The connection unit is fixed outside and the connection unit connects the decompression unit to be unibody, A flange unit is installed at the both ends of the decompression unit connected to the connection unit and the flange unit connects the multistage orifice to the pipeline where the fluid flows.
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