The invention belongs to the technical field of pipeline connection pieces, and particularly provides a water
distributor and a production process thereof. The water
distributor comprises a main
pipe and a plurality of
branch pipes correspondingly communicated with the main
pipe; one end of the main
pipe is a water inlet end, and an end socket is arranged at the other end of the main pipe; and the water inlet end is subjected to
necking down treatment, and the inner
diameter of the water inlet end is made to be shrunk by 30-40%. By means of the water
distributor, the
water hammer effect in the water distributor can be effectively reduced, and
water flow is uniformly and stably distributed in the water distributor. The production process of the water distributor has the beneficial effects of being high in
automation degree and high in production efficiency; and arc holes and arc concaves which are precisely matched can also be obtained through an arc
punching machine and a
punching device by means of a
numerical control technology, seamless
butt joint of the arc holes and the arc concaves is achieved, and the sealing performance and the attractiveness of an obtained product are improved. In the
welding step, the relative positions of the main pipe and the
branch pipes are fixed by means of point
welding of three points, then, the main pipe and the
branch pipes are completely welded and sealed through hoop
welding, positioning can be facilitated by performing point welding firstly, and it is prevented that the branch pipes deflect in the hoop
welding process.