LN₂ Vaporizers
Liquid nitrogen vaporizers for Dewars, liquid cylinders, and bulk tanks
FWM manufactures liquid nitrogen ambient air vaporizers for portable liquid cylinders, Dewars, microbulk systems, and bulk-storage installations. DVAP and AV model selection depends on required flow, pressure, runtime, ambient temperature, humidity, available airflow, and duty cycle.
Liquid nitrogen applications
Industrial Manufacturing
Metal treating, shrink fitting, cooling, inerting, purging
Medical & Healthcare
Cryosurgery, specimen preservation, MRI cooling
Food Processing
Flash freezing, modified atmosphere packaging, cooling
Research & Laboratory
Cold traps, sample storage, cryogenic testing
Transportation
Refrigerated transport, tire deflation systems
Nitrogen vaporizer sizing considerations
Liquid nitrogen boils at -320°F (-196°C) at atmospheric pressure. The large temperature differential between the liquid and ambient air makes nitrogen well-suited for ambient vaporization without supplemental heat in most climates.
Key sizing factors include required flow rate (SCFH), operating pressure, duty cycle (continuous vs. intermittent), ambient temperature range, and installation location (indoor vs. outdoor, air circulation).
For high-volume or continuous applications, manifolded vaporizer banks may be required to maintain rated capacity while allowing ice buildup to clear. FWM engineering can help specify the right configuration.
Quick specs, FWM DVAP Series for LN₂
- Flow range
- 640–3,600 SCFH
- MAWP
- 600 PSIG
- Rating conditions
- 70°F, 0 PSIG outlet
- Availability
- Current availability confirmed during order review.
FWM AV Series and custom vaporizer specs confirmed during engineering review.
Vaporizer options for nitrogen service
FWM DVAP Series Dewar Vaporizers
Dewar and liquid-cylinder withdrawal service, smaller applications
Stocked Standard Product
FWM AV Series Large-Capacity
Bulk tanks, continuous high-volume demand
Datasheet on request
Custom Vaporizers
Non-standard footprint, flow, or connections, engineered to spec
Engineering review
Other gas services

Ready to Start
Need a nitrogen vaporizer?
Use the sizing tool for preliminary model guidance, or contact engineering for custom applications.