The concrete pump S-tube valve is a crucial component in the pumping system. It is used in combination with the wear plate and wear ring. The valve is pivotable mounted inside a concrete hopper. It alternately connects one of two outley ends od the pumping cylinders to the inlet end of the dischage conduit which was mounted on the fromt wall of the hopper.
S valve is constructed of the plate, flanges, and splined shafts that have been jointed together through welding. The splined shaft is made of 38CrMoAI, which has become a preferred choice for manufactures in making concrete pump S valve, chrome plated shaft sleeves are made of 45#.
Seamless carbon steel tube, with the chrome plating thickness between 0.12mm and 0.16mm, the inner hole of the s-shaped tube valve is wellded up by wear resistant welding electrode
Welded pipe 16Mn; Shaft 38 CrMoal, #45 steel, Hardfacing for pipe inner wall
≥50,000cbm based on different type
16mm(Pipe)+4mm(Bead Welding Layer)