Universal Industrial Gases, Inc. (UIG) is a full-service supplier of air separation plants, oxygen plants, nitrogen plants, and merchant liquid plants producing liquid oxygen, liquid nitrogen and liquid argon.  Its affiliate, UCG, is an onsite gas producer and supplier. Air: Source of the atmospheric industrial gases - oxygen, nitrogen and argon - produced in air separation plants, oxygen plants and nitrogen plants by UIG.

An all-new air separation plants with 350 tpd liquefier designed and supplied by UIG - operated by Airgas in New Carlisle Indiana

Industrial Gases Production, Equipment Supply and Services

Universal Industrial Gases (UIG) is a designer, manufacturer, supplier, installer and operator of industrial gases production and supply systems. Its product portfolio includes air separation plants, cryogenic oxygen plants, cryogenic nitrogen plants, liquefiers, and compressed dry air systems. UIG is also a supplier of associated  engineering, construction, installation, training, start-up, and ongoing plant operation and maintenance services.     

UIG supplies gaseous and liquid nitrogen, oxygen and other products such as compressed dry air and argon, directly to customers from on-site production plants which are owned and operated by UIG.  "Over-the-fence" / on-site-produced product supply arrangements allow UIG to produce and deliver products to users as needed; at lower cost, and with more stable pricing, than alternative sourcing arrangements.

UIG ships air separation and other gases-related equipment world-wide with installation advice and assistance as needed for each individual application.  Air separation plants and supply systems can be supplied as full turnkey installations - commissioned and ready for operation. UIG also takes pride in meeting requirements for industrial gas products, equipment and commercial arrangements that other companies cannot or will not. Specific scope of supply and associated commercial terms are customized to reflect each user's site-specific needs and desires.

UIG can provide rapid delivery and installation of industrial gas plants and equipment to meet aggressive project schedules Both new plants and reconditioned plants are supplied with performance guarantees and warranties. In addition to supplying complete systems for gas and liquid production, UIG supplies new and used cryogenic liquid storage tanks, product vaporizers and cryogenic liquid transport trailers.

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UIG profiled in Gasworld - Changing the Industry Landscape   See News

Interested in career change ?                           See our Job Postings page

      UIG supplied / UCG owned and operated onsite oxygen and nitrogen plant - Hunt Refining - Tuscaloosa Alabama
UIG Offices in Bethlehem PA   UIG dismantling a100 tpd Oxygen plant in Mexico in preparation for relocation (with upgrades) to Saudi Arabia
This "piggyback" plant, relocated and upgraded by UIG, produces oxygen gas + merchant liquids in the United States Liquid Oxygen and Liquid Nitrogen (LOX and LIN) storage tanks
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Universal Cryo Gas - Onsite Gas Producer - Nitrogen Supplier, Oxygen Supplier, Argon Supplier

     Universal Cryo Gas Home Page
        Oxygen Supplier (GOX, LOX)
        Nitrogen Supplier (GAN, LIN)
        Argon Supplier (GAR, LAR)

     About Universal Cryo Gas
     Universal Cryo Gas - Q&A
     UCG - A Change for the Better

     UCG - Tips on Changing Supplier

Liquid CO2 - Carbon Dioxide         Liquefaction Plants

Project Showcase - Highlights
  100 tpd Oxygen + 200 tpd Liquid Plant
  200 tpd Oxygen + Liquid Argon Plant
  Small Cryogenic Gaseous Oxygen Plant
  100 t/d Liquid CO2 Plant - Poland
  Small Gaseous Nitrogen Cryogenic Plant
  100 tpd Oxygen for Saudi Arabia
  Low Purity Oxygen PSA for Albania
  250 tpd Liquid CO2 Plant - WI, USA

  All New ASU / Liquefier Plants
     New Carlisle, Indiana
     Carrollton, Kentucky
  Oxygen and Nitrogen to Hunt Refinery

UIG in the News
   UIG Changes the Industry Landscape

Contacting UIG

Internet Inquiry Form

UIG Site Map        UCG Site Page List

Air Separation Technologies Overview
     Cryogenic Air Separation Processes
     Liquefier Processes and Integration

     Non-Cryogenic Air Separation
     Product Supply and Delivery Modes
     Plant Selection & System Optimization

Air: Source of Oxygen, Nitrogen, Argon
     Carbon Dioxide in Air
     Moist Air Properties and Relationships
     Psychrometric chart (I-P Units) (pdf)
     Psychrometric chart (SI Units)  (pdf)

Industrial Gases Characteristics & Uses
     Oxygen - O2 Applications
     Nitrogen - N2 Applications
     Argon - Ar Applications
     Neon, Krypton, Xenon - Applications
     Carbon Dioxide - CO2  Applications
     Hydrogen - H2 Applications and Uses

Properties of Gases & Other Chemicals
     Physical Properties (English Units)
Physical Properties (Metric)

Active Unit Converter Toolbox
Temperature and Pressure Units
     Usage Rate Unit Converter
      Air Quantity Unit Converter
     Oxygen Quantity Unit Converter

      Nitrogen Quantity Unit Converter
      Argon Quantity Unit Converter
CO2 Quantity Unit Converter
     Power and Energy Unit Converter
     Weight Unit Converter
     Length Unit Converter
     Area Unit Converter
     Volume Unit Converter

     Psychrometric Calculator

Conversion Factor Tables
Oxygen Unit Conversion (gas, liquid)
      Nitrogen Unit Conversion (gas, liquid)
      Argon Unit Conversion (gas, liquid)
      Hydrogen Unit Conversion (gas, liquid)
 CO2 Unit Conversion (gas, liquid, solid)

Atmospheric Pressure versus Elevation

Refurbished Plants: Used & Upgraded  Oxygen Plants, Nitrogen Plants, Air Separation Plants

Used Plants and Equipment of Special Interest

New Plant Portfolio - Overview
     Air Separation Plants: ASU
     Cryogenic Oxygen Plants
     Cryogenic Nitrogen Plants
     Non-cryogenic Nitrogen Plants - PSA
     Nitrogen Plants - LIN Assist
     Universal 3000 - Merchant Plant
     Universal 8000 - Merchant Plant
     Liquid CO2 Plants

Cryogenic Liquid Storage Tanks, Vaporizers and Transport Trailers -

New Equipment
    LOX/ LIN/ LAR Customer Stations

     Large LOX/ LIN/ LAR Storage Tanks
     CO2 Storage Tanks
      Cryogenic Transport Trailers    

Used Storage Tanks and Vaporizers

Used Cryogenic Liquid Trailers 
     Oxygen, Nitrogen, Argon, CO2

Industrial Gases Safety

Emergency Response

Safety Data Sheets (SDS)
Liquid Argon (Ar, LAR)
     Gaseous Argon (Ar, GAR)
     Liquid Nitrogen (N2, LIN, LN)
     Gaseous Nitrogen (N2, GAN, GN)

     Liquid Oxygen (O2, LOX, LO)
     Gaseous Oxygen (O2, GOX, GO)


About  Universal Industrial Gases  and Universal Cryo Gas

Universal Industrial Gases, Inc. is a Bethlehem, PA, USA based industrial gas company, founded in 1992. UIG is a United States based manufacturer of new air separation plants and a worldwide supplier of reconditioned used plants which produce gas & liquid Nitrogen (N2), Oxygen (O2) and Argon for industrial users and for distributors of bulk liquid products. UIG is a designer, manufacturer, fabricator and builder of cryogenic air separation plants, oxygen plants, nitrogen plants and liquefier equipment. UIG also supplies associated engineering, installation, operation & maintenance services, cryogenic storage tanks, compressed dry air production equipment and "over-the-fence" compressed dry air supply services.

A UIG affiliate, Universal Cryo Gas, LLC (UCG) owns and operates onsite gas production plants which supply clients with nitrogen, oxygen and argon as on-site pipeline gases. UCG was established in 2005. Gases made in UCG operated nitrogen plants, oxygen plants and air separation plants are supplied to chemical plants, refineries, and other users under utility-like long-term product supply agreements.


Contact Us using our Inquiry Form (or phone or fax if you prefer) regarding:

  • Purchase of a new or reconditioned nitrogen plant, oxygen plant, air separation plant, liquefier, or complete LOX/ LIN/ LAR merchant liquid plant

  • On-site production and pipeline supply of compressed air, gaseous nitrogen, and/ or oxygen and argon

  • Purchase of equipment, such as cryogenic storage tanks, used in air separation plants

  • UIG installation, operation and maintenance services, including consultation on plant upgrades and relocation


Universal Industrial Gases, Inc.
Universal Cryo Gas, LLC
3001 Emrick Blvd, Suite 320
Bethlehem, Pennsylvania 18020, USA

Phone (610) 559-7967 Fax (610) 515-0945

All material contained herein Copyright 2003 / 2019 UIG.  

SIC Code 2813   NAICS Code 325120    Industrial Gas Manufacturing Companies
SIC Code 3569   NAICS Code 333999   Industrial Gas Machinery & Equipment Companies