36,000 SCFH 700 PSIG Ambient Vaporizer – Model HBVP-36K

How do I size this vaporizer for my flow rate and duty cycle?

This unit is rated for 36,000 SCFH at a 20°F approach to ambient temperature. Ambient vaporizers are typically rated assuming continuous duty at a specific ambient temperature; if your actual ambient is lower or your peak flow exceeds nameplate for extended periods, the unit may not achieve the outlet temperature approach. Confirm with the seller what ambient temperature the 36,000 SCFH rating assumes and whether any derating curves or performance data are available for your operating range.

What happens to output in cold or humid conditions, and on continuous duty?

Ambient air vaporizers rely entirely on natural convection heat transfer from surrounding air, so capacity drops as ambient temperature decreases. Humidity generally improves performance slightly due to frost formation adding latent heat, but ice buildup on fins can eventually restrict airflow and require cycling or defrost periods. On true continuous duty in cold climates, most operators either oversize the vaporizer, install multiple units for rotation, or accept reduced flow during winter months.

Can this be put into a different gas service than it previously ran?

This is a new unit that has been cleaned, sealed, and oxygen-tagged in compliance with CGA G-4.1, so it is ready for LOX, LIN, LAR, or LNG service as designed. Switching an ambient vaporizer between cryogenic gases after commissioning generally requires re-cleaning to the applicable standard (CGA G-4.1 for oxygen, CGA G-5.5 for argon/nitrogen, or purging protocols for LNG) and may require re-tagging or material compatibility review depending on the transition.

What should I inspect on a used ambient vaporizer before buying?

This unit is listed as new, so typical used-equipment concerns—fin damage, corrosion, weld cracking at tube-to-header joints, and prior repair history—do not apply here. On any ambient vaporizer, the key wear points are the fin-to-tube crimp integrity (which can loosen from thermal cycling), the condition of flange faces and gasket surfaces, and any evidence of impact damage to the fin array or structural members that would reduce heat transfer area or create leak paths.