Pouring spout for a film bag

A pouring spout for a film bag, the pouring spout comprising:

• a welding region;
• and
• a pouring channel which comprises:
• a channel axis,
• a first end region,
• a second end region, and
• a channel wall which is configured as a pouring nozzle at the first end region and which is surrounded by the welding region at the second end region, wherein,
• the welding region comprises a first welding arm and a second welding arm which are arranged to extend in opposite directions perpendicular to the channel axis of the pouring channel and away from the channel wall to a first welding arm end and to a second welding arm end, respectively,
• each of the first welding arm and the second welding arm comprises a plurality of rib elements which are attached to the channel wall and which are mutually axially spaced apart from each other with respect to the channel axis,
• each of the plurality of rib elements comprises two welding sides which comprises a first welding side and a second welding side, the first welding side having a first peripheral region which extends between the channel wall and the first welding arm end, and the second welding side having a second peripheral region which extends between the channel wall and the second welding arm end,
• the first peripheral region and the second peripheral region each form a first welding zone and a second welding zone which converge towards the first welding arm end and the second welding arm end, respectively,
• vacant spaces arranged in the first welding arm and the second welding arm between each of two adjacent rib elements of the plurality of rib elements, each of the vacant spaces being open on one of the two welding sides and being closed by a welding face on the other of the two welding sides, and
• each of the first welding arm and the second welding arm has at least one vacant space which is open on the first welding side and which is closed on the second welding side, and at least one vacant space which is closed on the first welding side and which is open on the second welding side.