Natural Gas Processing Equipment Manufacturer
Custom-engineered dehydration, treating, separation, heating, heat transfer, emissions, and modular gas processing equipment fabricated in Oklahoma City. Since 1962, QB Johnson has supported natural gas conditioning projects with ASME-code fabrication, ISO 9001:2015 quality systems, and in-house project support.
Explore equipment built around gas composition, flow rate, pressure, site conditions, outlet specifications, and project requirements.
ASME Sec. VIII, Div. 1 vessels
Repairs and alterations
1962
Founded
8,000+
Vessels shipped worldwide
100,000
Facilities in Oklahoma City
27
Countries with QB Johnson equipment
A Leader in Gas Conditioning Technology
Since 1962, QB Johnson Manufacturing has engineered and fabricated custom natural gas conditioning and processing equipment for domestic and international projects. Our work ranges from wellhead TEG dehydration units, amine treating systems, filter separators, and line heaters to thermal oxidizers, heat exchangers, molecular sieve packages, and modular gas plants.
Every project starts with the application: gas composition, flow rate, pressure, temperature, outlet specifications, plot space, site conditions, and applicable code requirements. Equipment is engineered, fabricated, inspected, documented, and tested through our Oklahoma City facilities before shipment.
QB Johnson supports operators, engineers, EPC firms, and procurement teams with practical equipment design, in-house fabrication, quality documentation, startup support, and spare parts support after the unit is in service.
Featured Gas Processing Equipment
Explore QB Johnson equipment for dehydration, treating, separation, heating, heat transfer, emissions support, and modular gas processing applications.
TEG Dehydration
Custom glycol dehydration systems for water removal in natural gas production and processing applications.
Amine Units
Amine treating equipment for H2S and CO2 removal in sour gas sweetening applications.
Filter Separators
Two-stage filter separators for removing liquids and solids before compressors, dehydrators, amine units, and process equipment.
Line Heaters
Water bath and indirect-fired line heaters for pressure reduction, hydrate prevention, and natural gas production applications.
Molecular Sieve
Molecular sieve dehydration systems for deep water removal and low outlet moisture requirements.
Modular Gas Plants
Modular gas processing equipment for treating, dehydration, separation, refrigeration, liquid recovery, and BTU control.
Project Snapshots
A sample of equipment QB Johnson has built, from single modules to large-capacity units.
TEG Dehydration
450 MMSCFD TEG Dehydration Unit
- Capacity
- 450 MMSCFD
- Service
- Natural gas dehydration
- Region
- Mississippi
Modular TEG dehydration unit with a 3.5 MMBTU/hr regeneration module and thermal oxidizer.
Modular Gas Plant
5 MMSCFD Hydrocarbon Dew Point Control Unit
- Capacity
- 5 MMSCFD
- Service
- Hydrocarbon dew point control
- Region
- South America
Modular dew point control plant, built in Oklahoma City and shipped to South America.
Indirect Line Heater
3.5 MMBTU/hr Indirect Line Heater
- Capacity
- 3.5 MMBTU/hr
- Service
- Gas utility
- Region
- Ohio
Indirect-fired line heater built for a gas utility in Ohio.
Why Operators Work With QB Johnson
QB Johnson supports gas conditioning projects with in-house engineering, ASME-code fabrication, quality documentation, startup support, and spare parts support. The work is practical, project-specific, and built around equipment that has to perform after installation.
ASME Code & ISO 9001:2015
Pressure vessel fabrication is supported by applicable code requirements, inspection, documentation, and QB Johnson’s ISO 9001:2015 quality management system.
In-House Manufacturing
QB Johnson engineers, fabricates, assembles, inspects, and tests equipment in Oklahoma City with in-house welding, QA/QC, paint, instrumentation, and project support.
Custom-Engineered Equipment
Equipment is built around project-specific gas composition, operating conditions, code requirements, site constraints, and customer specifications.
Support After Shipment
QB Johnson supports startup, troubleshooting, replacement parts, and long-term equipment service for domestic and international customers.
Ready for Reliable Gas Processing Equipment?
Send QB Johnson your gas analysis, flow rate, pressure, temperature, outlet specifications, site conditions, and applicable project requirements. Our team can review the application and discuss equipment built around your process.