A fluid transportation device comprises a valve main body, a valve chamber base, a valve membrane, an actuator and a cover body. The valve main body comprises an inlet passage and an outlet passage. The valve chamber base comprises an inlet valve passage, an outlet valve passage and a compressible chamber communicating therewith. The valve membrane is arranged between the valve main body and the valve chamber base, having two valve plates respectively form a valve switch structure which seal the inlet valve passage and the outlet valve passage. The actuator covers the compressible chamber. The cover body covers the actuator and has a plurality of screw holes, which are corresponding to the penetration holes of the valve main body, the valve chamber base and the actuator, and several locking elements are inserting the penetration holes and locked with the screw holes to assemble the fluid transportation device.
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