The utility model discloses a kind of gas tank flow regulating valves, it includes installation valve body, regulating valve piece and gas outlet component, the upper end of this installation valve body is recessed with adjusting slot, the regulating valve piece can be adjusted and connect in this adjusting slot, the lower side end of this adjusting slot is opened with gas outlet hole, the gas outlet component is fixedly connected in this gas outlet hole, the inner bottom of this adjusting slot is equipped with sealing cone groove, the bottom of this regulating valve piece is equipped with the sealing cone head compatible with this sealing cone groove, the sealing cone head is embedded into the sealing cone groove and forms
conical surface sealing connection.The gas tank flow regulating valve of the utility model is realized by
screw thread transmission the up-and-down movement of regulating valve piece, so that sealing cone head generates controllable gap in sealing cone groove, to realize the accurate regulation of gas flow, in
closed state, sealing cone head and sealing cone groove are closely combined, form high-efficiency
conical surface sealing, ensure that gas circuit is completely
cut off.