The invention discloses a novel sealing structure of a pump shell split face and a
machining method of the novel sealing structure, and relates to the technical field of pump shells, and the novel sealing structure of the pump shell split face comprises a finish
machining belt and a sinking area; the finish
machining belt is arranged on the side, close to the runner, of the middle opening face and used for being matched with the sealing element to form sealing. The sinking area is located on the middle opening face part outside the finish machining belt, and the
casting surface is reserved in the sinking area. The machining method comprises the steps that the pump shell is cast, and the machining allowance of the sinking area is reserved; the finishing strip is subjected to finishing, the finishing being selected from milling or
grinding, while retaining the
casting surface of the sinker zone. The finish machining belt is arranged on the side close to the flow channel, only a key sealing area is subjected to finish machining, the
machining time is remarkably shortened, and tool abrasion is reduced; a
casting surface is reserved in the sinking area, secondary machining is not needed, the bolt pre-tightening force requirement is reduced, and therefore the buckling risk of the combination face is reduced, the
assembly stability of the pump shell is improved, and the service life of the pump shell is prolonged.