Sany S valve pipe tube is made of hardness carbide pipe and #38 CrMoAl shaft. The inner wall is smoother and the flow passage resistance is smaller, and have wear resistance when working.
Materials: Inner pipe 55SiMn+outer pipe Q345 steel, Shaft 38 CrMoall.
| C | Si | Mn | S | P | Cr | Ni | Cu | V | B |
| 0.52～0.60 | 0.70～1.00 | 1.00～1.30 | ≤0.035 | ≤0.035 | ≤0.35 | ≤0.35 | ≤0.25 | 0.08～0.16 | 0.0005～0.0035 |
| Tensile Strength σb | Yield Strength σs | Elongation δ5 | Reduction of Area ψ | Impact Absorption Energy Aku2 |
| 1375Mps | 1225Mpa | 30% | 25% | 27J |
Reverse pumping is possible to solves the blockage problem without disassembling and cleaning of the pipeline.
S valve is especially useful for long pumping distances and high site with high pressure.
The S-valve has very few wear parts and all parts of the S-tube are easy to change.