At the construction site of the water conservancy project in Rucheng County, Hunan Province, the concrete delivery pump of Xieyan Machinery is operating efficiently. The equipment has a precise structure, is flexible and can deliver a large volume. It has a reverse pump function, which can timely eliminate pipe blockage failures and reduce downtime waiting for materials. The advanced S-tube distribution valve can automatically compensate for wear gaps to ensure good sealing performance. With these advantages, it can accurately and efficiently deliver concrete to the designated location, greatly improve construction efficiency, provide solid guarantees for the smooth progress of local water conservancy projects, help build high-quality water conservancy facilities, and win local unanimous recognition with quality and quality.