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Ambient Vaporizer

Supergap™ ambient vaporizers have become the industry standard. Supergap vaporizers use natural convection of air to vaporize liquefied gases.

Finned aluminum tubes absorb heat from the air and transfer it to the gas. A 4-inch gap between fin tips permits room for ice growth and provides more than 500 hours of continuous operation–ideal for severe climates and long duration operation.

Extended operation requires a system of switching vaporizers, available in standard aluminum construction, stainless and other alloy liners for high pressure and corrosive applications.

Options

  • Stainless steel, monel, and other alloy liners
  • Design pressures exceeding 15,000 psig
  • Gale Force™ design for 150 mph wind loads per ASCE 7-50
  • Low inlet pressure and low pressure-drop designs

Standard Features

  • 12” fin tube center to center spacing
  • Standard models rated up to 200 MSCFH
  • Aluminum corrosion resistant construction
  • Withstands 100 mph winds and Zone 4 seismic forces

Connection Type Design Pressure
MNPT (male pipe threads) 600 psig41 barg 
150 lb ANSI F.F. flange 275 psig 19 barg 
300 lb ANSI F.F. flange 450 psig 30 barg 
Mueller flange (solder O.D.) 450 psig 31 barg 
Praxair Ambient Vaporizer
Model Number

Flow Rate* 8 Hours Nitrogen 

Aluminum SCFH

Flow Rate* 8 Hours Nitrogen 

SS Lined SCFH

Standard Inlet/Outlet Connection (in) 

Dimensions 

(in)

Weight 

(lbs)

SG25HF2,6002,100 3/4 22 x 22 x 152 155
SG35HF3,9003,100 3/4 32 x 22 x 152 215 
SG50HF 5,200 4,200 3/4 44 x 22 x 152 275
SG70HF7,800 6,200 3/4 48 x 36 x 152 405
SG95HF 10,400 8,300 3/4 48 x 48 x 152 515
SG110HF 11,700 9,400 3/4 48 x 36 x 213 580
SG140HF 15,600 12,500 3/4 48 x 48 x 213760
SG180HF 19,400 15,500 3/4 48 x 60 x 213 935
SG215HF 23,300 18,600 1-1/2 72 x 48 x 224 1,160
SG270HF 29,200 23,400 1-1/2 60 x 72 x 224 1,425
SG320HF 35,000 28,000 1-1/2 73 x 73 x 224 1,690
SG360HF 38,900 31,100 1-1/2 75 x 62 x 284 1,890

Large models available upon request. *Nominal flow rate is based upon 8 hours continuous service between defrosts, an ambient temperature of 50°F, relative humidity of 50%, and a 20°F approach temperature. All tables intended as guides only. Actual performance and dimensions may vary. 

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Ambient Vaporizer Brochure

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