Stainless steel relies on an extremely thin "chromium oxide film" (passivation layer) on its surface to prevent rust; while corrosion-resistant, it is not immune to rusting forever. Rust will occur if this film is damaged, contaminated by iron particles, or exposed to overly harsh environmental conditions.

In fluid piping systems, pressure management is a crucial aspect of ensuring the reliable operation of the entire system. Safety valves and pressure reducing valves may appear similar, as both are valve components designed to manage pressure. Many novice users easily confuse the two, even using them interchangeably. However, they actually address two completely different problems: one serves the daily operation of equipment, while the other handles the risk of sudden failures.

Both screw pumps (single screw) and rotary lobe pumps are positive displacement pumps, primarily used for conveying high-viscosity pastes and shear-sensitive materials. They are self-priming, and their flow-through components can be made of 316L stainless steel, while seals are made of FDA-compliant EPDM or PTFE. Although their applications overlap, their structures differ, resulting in significant differences in conveying performance, maintenance methods, and material compatibility.

Stainless steel flanges are widely used in various industrial sectors, from heavy chemical industry to pharmaceuticals and food processing.