DIRECT ANSWERLOX, LIN and LAR may share a cryogenic storage-and-vaporization architecture, but their RFQs are not interchangeable. Define whether the process consumes liquid or gas, purity and contamination limits, average and peak demand, delivery pressure and temperature, continuity and standby. LOX needs explicit oxygen-compatible cleanliness and material controls; LIN and LAR need an explicit oxygen-deficiency, ventilation and monitoring boundary for inert-gas release.
Start with the downstream use and quality requirement
Liquid withdrawal versus gas supply determines whether vaporization, temperature control and pressure regulation are included. Purity, dew point, particles and oil limits must come from the receiving process rather than an industry label.
- Liquid withdrawal or vaporized-gas supply
- Purity, dew point and contamination limits
- Average/peak demand and delivery pressure
- Continuity, reserve and future operating cases
Use one field structure, but issue three reviewed duty rows
This comparison identifies procurement inputs only; it does not replace the project's safety study or regulatory review.
| Input | LOX | LIN | LAR |
|---|---|---|---|
| Use | Liquid use or oxygen supply with required purity | Liquid use, inerting or nitrogen supply with purity/dew point | Liquid use or high-purity argon supply |
| Cleanliness | Oxygen-compatible materials, degreasing, cleanliness and contamination control | Process-specific water, oil and particle limits | High-purity contamination and analysis method where required |
| Site interface | Oxygen enrichment, venting and compatibility boundary | Oxygen-deficiency, ventilation, monitoring and venting | Oxygen-deficiency, low-point accumulation, ventilation and monitoring |
| Common equipment duty | Inventory, vaporization, regulation, peak and standby | Inventory, vaporization, regulation, peak and standby | Inventory, vaporization, regulation, peak and standby |
Conditions to confirm for the project
- Liquid or gas use
- Purity, cleanliness and contamination limits
- Average/peak demand and pressure/temperature
- Ventilation, monitoring and vent discharge conditions
- Storage, vaporization, regulation and reserve scope
Relevant manufacturing capability
- Cryogenic pressure-equipment manufacturability review
- Specialist component and gas-supply package coordination
- Material, cleanliness, inspection and document-requirement response
Key notes
- Changing only the medium name does not create a valid specification.
- Do not infer capacity, use or manufacturing source from a photograph.
- Project safety and layout conditions require authorized design review.