Industrial Cylinders

We maintain the highest quality cylinder products used for shipping and dispensing compressed gas!
Central Welding Supply can provide a full range of products to cover your specific application needs. our friendly staff is available to help you with any questions.

Acetylene Cylinders

Size/Name Cubic Ft Width Height Weight
MC 10 CF 4" 15" 8 LBS
B 40 CF 6" 23" 25 LBS
75 75 CF 7" 31" 43 LBS
#4 145 CF 8" 38" 74 LBS
#5 397 CF 12" 47" 169 LBS

High Pressure Steel Cylinders

Size/Name Cubic Ft Width Height Weight
21 21 CF 5" 17" 10.5 LBS
46 46 CF 7" 18" 27 LBS
55 55 CF 7" 23" 32 LBS
80 92 CF 7" 32" 46 LBS
125 125 CF 7" 43" 62 LBS
150 155 CF 7.5" 46.5" 67.5 LBS
250 251 CF 9.25" 51" 115 LBS
300 336 CF 9.25" 55.5" 134 LBS

Required Routine Hydrotest Regulations:

By Department of Transportation regulation, all compressed gas cylinders must be re-tested every 5 years. Each cylinder is stamped with a DOT number and last test date on the upper portion or "shoulder" of the cylinder. If the test date is followed by a five-pointed "star" then the cylinder needn't be tested for 10 years. Please call your local Central Welding Supply if you have questions or concerns.

Cylinders are defined by four main characteristics:

Gas form - Compressed gas, refrigerated liquid (carbon dioxide, nitrous oxide), dissolved gases (acetylene), or cryogenic liquids.

Gas type - Oxygen, nitrogen, argon, acetylene, carbon dioxide, hydrogen, helium, rare gases, specialty gases, nitrous oxide, chemical gases and liquids, medical gases.

Gas purity - Up to 99.9999%.

Cylinder - Size (volume) and pressure, varying from country to country.

Cylinders can be supplied individually or bundled together as 6 or 16 cylinder packs and emptied as a unit. Materials of construction include aluminum, steel, light alloy, composite materials, as well as special porous interior materials for acetylene.

Non-refillable Steel Cylinders

A convenient and cost-efficient way to handle calibration gas mixtures... these smaller-sized, lightweight cylinders require no deposit or monthly rental charge. They are easier to handle, less expensive to ship, and use very little space. They also eliminate over-purchasing when only small quantities are necessary.

These steel cylinders are recommended for non-reactive gas mixtures and pure gases such as argon, helium and nitrogen. They combine a convenient, portable size with a wide range of capacities (from 17 liters (0.6 cu ft.) to 550 liters (19.4 cu ft.)) to handle any field calibration requirement.

17 Liter Cylinder

Contents:17 liters (0.6 cu. ft.)
Pressure:240 PSIG
Outlet:CGA 600
Weight:1.1 lbs.
Dimensions:3” x 10 3/4”
D.O.T. specs:39 NRC
Regulator:400 Series

22 Liter Cylinder

Contents: 22 liters (0.8 cu. ft.)
Pressure: 240 PSIG
Outlet: CGA 160 (1/8” NPT-F)
Weight: 2.15 lbs.
Dimensions: 3” x 14 1/4”
D.O.T. specs: 4B240ET
Regulator: 700 Series

34 Liter Cylinder

Contents: 34 liters (1.2 cu. ft.)
Pressure: 500 PSIG
Outlet: CCGA 600
Weight: 1.4 lbs.
Dimensions: 3" x 10 3/4"
D.O.T. specs: 39 NRC
Regulator: 400 series

103 Liter Cylinder

Contents: 103 liters (3.6 cu. ft.)
Pressure: 1000 PSIG
Outlet: C-10 5/8”-18 UNF
Weight: 2.3 lbs.
Dimensions: 3 1/4” x 13 2/3”
D.O.T. specs: 39 NRC
Regulator: 500,6000,8000 Series

221 Liter Cylinder

Contents: 221 liters (7.9 cu. ft.)
Pressure: 260 PSIG
Outlet: CGA 165
(1/4” SAE flare 45°)
Weight: 6.3 lbs.
Dimensions: 9” x 16 1/2”
D.O.T. specs: 39 NRC
Regulator: 700 Series

550 Liter Cylinder

Contents: 550 liters (19.6 cu. ft.)
Pressure: 2200 PSIG
Outlet: Varies with the gas
Weight: 12.9 lbs.
Dimensions: 4 1/6” x 20 1/2”
D.O.T. specs: E8990 NRC
Regulator: 6000,900,HP Series

Portable Reactive Gas Cylinders

Offering mixture stability in a lightweight, portable package. These compact, lightweight aluminum cylinders are recommended for gas mixtures that are not stable in steel cylinders. Typical components blended in these packages include ammonia, chlorine, hydrogen sulfide, nitric oxide, nitrogen dioxide and sulfur dioxide. They are available in capacities from 11 liters (0.4 cu. ft.) to 104 liters (3.7 cu. ft.) and are conveniently transported in a NorLab carrying case or bag. They are non-refillable, except the “3A” cylinder, which is a refillable package.

Bump Gas Cylinder

Used for Industrial Hygiene Bump Gas Mixtures.
Contents: 11 liters (0.4 cu. ft.)
Pressure: 140 PSIG
Outlet: Trigger-style aerosol
Weight: 0.3 lbs
Dimensions: 2 7/8” x 12”
D.O.T. specs: 39 NRC
Regulator: N/A

34 Liter Cylinder

Contents: 34 liters (1.2 cu. ft.)
Pressure: 500 PSIG
Outlet: C-10 5/8”-18 UNF
Weight: .8 lbs.
Dimensions: 2 7/8” x 11 1/2”
D.O.T. specs: 39 NRC
Regulator: 500,6000,8000 series

48 Liter Cylinder

Contents: 48 liters (1.7 cu. ft.)
Pressure: 300 PSIG
Outlet: CGA 165
Weight: 1.75 lbs.
Dimensions: 4” x 16 1/4”
D.O.T. specs: 39 NRC
Regulator: 700 Series

58 Liter Cylinder

Contents: 58 liters (2.0 cu. ft.)
Pressure: 500 PSIG
Outlet: C-10 5/8”-18 UNF
Weight: 1.6 lbs.
Dimensions: 3 1/2” x 14 1/2”
D.O.T. specs: 39 NRC
Regulator: 500,6000,8000 Series

Chlorine Cylinder - 58 Liter

Contents: 58 Liters (2.0 cu. ft.)
Pressure: 500 PSIG
Outlet: C-10 5/8” - 18 UNF
Weight: 1.6 lbs.
Dimensions: 3 1/2” x 14 1/2”
D.O.T. specs: 39NRC
Regulator: 517SS (0.5 ltr./min.) 518SS (1.0 ltr./min.)

76 Liter Cylinder

Contents: 76 liters (2.6 cu. ft.)
Pressure: 500 PSIG
Outlet: CGA 170
Weight: 1.75 lbs.
Dimensions: 4” x 16 1/4”
D.O.T. specs: 39 NRC
Regulator: 900 Series

"3A" Cylinder (Refillable)

Contents: 104 liters (3.7 cu. ft.)
Pressure: 1800 PSIG
Outlet: CGA 180
Weight: 2.2 lbs.
Dimensions: 3 1/4" x 12 1/4"
D.O.T. specs: 3AL 1800
Regulator: 900 Series