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HH30 is a well-known Pre-Main-Sequence star in Taurus. HST observations haverevealed a flared, edge-on disk driving a highly-collimated optical jet, makingthis object a case study for the disk-jet-outflow paradigm. We obtained highangular resolution (about 1") observations of the dust continuum at 2.7 and 1.3mm, and of the 12CO(2-1), 13CO(2-1) & (1-0), C18O(1-0) emissions around HH30. Astandard disk model is used to fit the 13CO(2-1) uv-plane visibilities andderive the disk properties, and the stellar mass. It results that HH30 is a lowmass TTauri of spectral type around M1 and age 1 to 4 Myrs, surrounded by amedium size Keplerian disk, of mass around 4e-3 Msun and outer radius 420 AU.The disk rotation vector points toward the North-Eastern jet. Using a distanceof 140 pc, we deduce a stellar mass of 0.45 Msun. A highly asymmetric outfloworiginates from the inner parts of the disk. It presents to first order aconical morphology with a 30 degree half opening angle and a constant (12 km/s)radial velocity field. Outflow rotation was searched for but not found. Theseobservations do not enable to assign the origin of the molecular outflow toentrainment by the optical jet or to a disk wind. In the latter case, the upperlimit of the outflow rotation velocity implies an origin in the inner 15 AU ofthe disk.Comment: 20 pages, 15 PostScript figures. Accepted for publication in  Astronomy & Astrophysics. Uses aa LaTeX macro

Plateau de Bure interferometer observations of the disk and outflow of HH 30