| Carbon Steel Piping | Welded or threaded carbon steel pipe and fittings | Centralized plant vacuum networks, general manufacturing, and industrial dust collection | Strong, widely available, and suitable for durable fixed installations | Assess corrosion exposure, internal cleanliness, joint quality, and support requirements. Coatings may be needed in corrosive environments. | Moderate |
| Stainless Steel Piping | Stainless steel pipe, tubing, and compatible fittings | Food and beverage processing, pharmaceutical production, clean areas, and corrosive environments | Good corrosion resistance and cleanability; appropriate grades can support stringent hygiene requirements | Specify the stainless steel grade, surface finish, joining method, and cleaning requirements for the process. | High |
| Aluminum Modular Piping | Extruded aluminum pipe with modular connectors and fittings | Factory vacuum distribution, production cells, and systems that may need reconfiguration | Lightweight, modular, and relatively quick to install or modify | Confirm vacuum-pressure rating, connector compatibility, temperature limits, and suitability for the conveyed material. | Moderate to high |
| Galvanized Steel Piping | Zinc-coated steel pipe and fittings | General-purpose plant installations where a coated steel pipe is appropriate | Rigid construction with a protective zinc coating for many ordinary service conditions | Check coating compatibility with the process and environment. Avoid assuming it is suitable for high-purity or strongly corrosive service. | Low to moderate |
| Flexible Vacuum Hose Connections | Application-specific flexible hose, often with reinforced construction | Equipment connections, moving machinery, vibration isolation, and short drops from rigid headers | Accommodates movement and helps simplify connections where rigid pipe is impractical | Use hose rated for the required vacuum, temperature, abrasion, and chemical exposure. Long or undersized runs can increase pressure loss. | Low to moderate |