Pressure Vessels Housing

3L Filters™ has over 40 years of experience in the design and fabrication of tanks and pressure vessels. Our engineering group can perform complete stress and seismic analysis and design registration. 3L Filters™ has registered Quality Assurance Programs for nuclear and non-nuclear applications. In addition to tanks and pressure vessels, other applications include boiler shells and filter housings for most uses. 3L Filters™ has special expertise for nuclear, oil and gas, pertrochemical, water treatment and environmental applications.


  • GMAW, SMAW, SAW and GTAW welding methods
  • Quality assurance programs for nuclear and non-nuclear applications.
  • Experienced, aualified welders

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fabrication in carbon steel, stainless steel, aluminum or other specialty materials
experienced, qualified welders
GMAW, SMAW, SAW and GTAW welding methods
large library of approved welding procedures
25 ton lift capacity
in-house machining, blasting and painting
in-house and third-party NDE testing
in-house pressure and performance testing
maximum diameter is 14 ft. (back door is 15 ft.)