Technical Resources - FIBA Technologies, Inc.

FIBA’s reputation in the gas containment industry is built upon more than 60 years of innovation, engineering and leadership in technical standards. Our engineering is done with CAD Systems and state-of-the-art, Finite Element Analysis (FEA). In order to best serve our customers we have provided some tables and conversion tools for your convenience.

Please click on any of the buttons below and the table will expand for your use.

(Type the unit amount in a chosen field and the value(s) will be automatically calculated)

Temperature Conversion:

Celsius	Fahrenheit	Kelvin

Pressure Conversion:

Bar	KG/CM²	PSI	KPa

Weight Conversion:

Tons	Kilograms	Pounds	Metric Tons

Volume Conversion:

Liters	US Gallons	Cubic Feet	Cubic Meters	Cubic Inches

Length Conversion:

Inches	Feet	Millimeters	Meters

The following is a list of conversion factors to calculate volume of specialty gases given a specific water volume.

Specialty Gas	Payload Conversion
AMMONIA (NH₃)	33.64 LBS./CU. FT. WATER (H₂O)
BORON TRIFLUORIDE (BF₃)	41.0 LBS./CU. FT. H₂O
CARBON MONOXIDE (CO)	137.1 SCF/CU. FT. H₂O (9.81 LBS./CU. FT. H₂O)
ETHANE (C₂H₆)	21.6 LBS./CU. FT. H₂O
ETHYLENE (C₂H₄)	DOT VESSEL- WATER VOLUME OF DOT VESSEL x 62.3 LBS./CF H₂O = LBS. OF H₂O x .355 (%H2O BY WEIGHT) = LBS. OF ETHYLENE (x 13.8 SCF/LB. = SCF OF ETHYLENE) (NOTE: A different calculation is used for ASME vessels. Call FIBA for assistance.)
FLUORINE/NITROGEN (F2N2)	11.15 LBS./CU. FT. H₂O
HYDROGEN CHLORIDE (HCl)	40.5 LBS./CU. FT. H₂O
LIQUEFIED NATURAL GAS (LNG)	3.56 LBS./U.S. GALLON (@ -259˚ F AND 14.7 PSIA)
NITROGEN TRIFLUORIDE (NF₃)	28.82 LBS./CU.FT. H₂O @ 1450 PSIG (MAXIMUM PRESSURE OF 1,450 PSIG)
NITROUS OXIDE (N₂O)	42.36 LBS./CU.FT. H₂O
SILANE (SiH₄)	20.12 LBS./CU. FT. H₂O
SULFUR HEXAFLUORIDE (SF₆)	74.76 LBS./CU. FT. H₂O
TETRAFLUOROETHYLENE, INHIBITED (TFE)	7.02 LBS./CU. FT. H₂O @ 500 PSIG 13.8 LBS./CU. FT. H₂O @ 1,000 PSIG
VINYLIDENE FLUORIDE (VF₂)	45.5 LBS./CU. FT. H₂O
FLUOROCARBONS
R14-TETRAFLUOROMETHANE (CF₄)	45.0 LBS./CU. FT. H₂O
R22- CHLORODIFLUOROMETHANE (CHClF₂)	62.3 LBS./CU. FT. H₂O
R23- TRIFLUOROMETHANE (CHF₃)	45.0 LBS./ CU. FT. H₂O
R116- HEXAFLUOROETHANE (C₂F₆)	65.0 LBS./CU. FT. H₂O
R142b-1-CHLORO-1, 1-DIFLUOROETHANE (CH₃CClF₂)	9.22 LBS./CU. FT.

The following is a list of average and/or nominal water volumes of various sizes of tubes (all volumes are in cu.ft.):

CONVENTIONAL (DOT 3A-2400)

Tube Specification	Average Water Volume (cu. ft.)
9-5/8" OD x 12' L	5.0
9-5/8" OD x 20' 6-1/2"L	8.6
9-5/8" OD x 21'L	8.8
9-5/8" OD x 24'L	10.1
9-5/8" OD x 32'L	13.4

CONVENTIONAL (DOT 3AA-2400; CHROME-MOLY)

Tube Specification	Average Water Volume (cu. ft.)
9-5/8" OD x 20' 6" L	9.0
9-5/8" OD x 21' 0" L	9.1

JUMBO/SUPERJUMBO (DOT 3T-2400)

Tube Specification	Nominal Water Volume (cu. ft.)
22" OD x 18'6"L	41.5
22" OD x 34'4"L	79.8
22" OD x 36'0"L	83.8
22" OD x 37'6"L	87.4
22” OD x 40’0”L	93.5

JUMBO/SUPERJUMBO (DOT 3AAX-2400)

Tube Specification	Nominal Water Volume (cu. ft.)
22" OD x 18'6"L	40.4
22" OD x 34'4"L	77.7
22" OD x 36'0"L	81.6
22" OD x 38'0"L	86.3
22” OD x 40’0”L	91.0

JUMBO/SUPERJUMBO (DOT 3T-2850)

Tube Specification	Nominal Water Volume (cu. ft.)
22" OD x 18'6"L	40.8
22" OD x 34'4"L	78.4
22" OD x 36'0"L	82.6
22” OD x 37’6”L	86.0
22" OD x 38'0"L	87.1
22" OD x 40'0"L	91.9

Technical

Metric Calculator

Gas Conversion Factors

Water Tube Volumes

Gas Table Lookup