Importance

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Abstract

To provide a fluid flow rectifying device wherein the fluid flow rectifying device can be secured easily in the inlet of a flow path and wherein the flow path structure can be simplified and the fastening operation can be made more efficient. A fluid flow rectifying device for rectifying the flow of a fluid that flows in a flow path, and which can be built in to a flow path of a fluid, comprises a fluid flow rectifying device main unit that is structured from stacking a plurality of cylindrical spacer blocks and a plurality of mesh-shaped flow rectifying members, having external shapes that are essentially identical to the external shape of the spacer blocks; and a retaining ring having a retaining portion having an external shape that is essentially identical to the external shape of the fluid flow rectifying device main unit, and being bent so as to have an angle, from the vicinity of an attachment base, in the direction that is opposite of the direction of insertion of the fluid flow rectifying device main unit, and having a protrusion to the outside from the outer peripheral surface thereof, provided integrally with the end surface of the fluid flow rectifying device main unit that is on the side opposite from the direction of insertion into the flow path.

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First Claim