Question 1

How do I choose an FWM AV model?

Accepted Answer

Start with the gas service and the required flow, then weigh duty cycle, inlet and outlet pressure, ambient temperature, humidity, approach temperature, and your installation layout. The nominal 8-hour nitrogen ratings give a starting point for selection, but the right model for your site is confirmed by FWM engineering review.

Question 2

Are the ratings guaranteed for all operating conditions?

Accepted Answer

No. The published numbers are nominal 8-hour nitrogen vaporization ratings for model-selection guidance only. Real performance shifts with ambient temperature, humidity, wind, frost buildup, pressure drop, run time, and spacing. FWM engineering review confirms the rating that applies to your conditions before purchase.

Question 3

Can multiple FWM AV units be manifolded together?

Accepted Answer

Yes. FWM AV units can be manifolded for added capacity, redundancy, or defrost rotation. FWM reviews common inlet and outlet header sizing, pressure drop, unit spacing, and controls so the bank performs as intended. Final header and control design is set during engineering review.

Question 4

Can FWM AV units support continuous duty?

Accepted Answer

Yes. Ambient air vaporizers frost over time, so continuous service is supported by arranging multiple units or banks with switching so one set runs while another defrosts. FWM reviews flow, switching intervals, and site conditions to size the arrangement, and confirms the final design during engineering review.

Question 5

What gases are supported?

Accepted Answer

Selection starts from the nominal nitrogen ratings. Oxygen and argon can be estimated from nitrogen for preliminary sizing, while LNG, hydrogen, and other specialty services require service-specific review of capacity, materials, pressure, and cleaning. FWM confirms gas suitability and final sizing during engineering review.

Model	AV-30K-30x15-AL
Nominal N2 Capacity	30,000 SCFH
Array Geometry	30 finned extrusions, 15-ft length class
Approx. Dimensions (W x D x H)	73" × 49" × 225"
Standard Connection	1-1/2 in
Optional Connections	Available on request
Approx. Dry Weight	1,425 lb
MAWP Options	250 / 600 / 700 PSIG (configuration dependent)
Material	Aluminum
Oxygen Service	Cleaned for oxygen service

FWM AV 30K

Specifications

Dimensioned Reference Drawing

Information FWM Needs to Confirm Selection