Mini-Bulk - Low-Pressure Carbon Dioxide Systems

With a capacity of 1,500 lb. (680 kg), the mini-bulk tank bridges the gap between high pressure containers and low pressure bulk tanks. The Mini-Bulk Low Pressure Carbon Dioxide Systems provide an alternative to manifolding high pressure cylinders. The tanks are configured vertically to save valuable floor space. Mini-bulk tanks provide protection for non-occupied total flood, local application hazards, hose reels or custom designs such as inerting or spurt systems.

Each mini-bulk tank is equipped with a low-cost, high-efficiency, air-cooled refrigeration unit. The refrigerant media, R134a, is environment-friendly and efficient. Most system components are interchangeable between the mini-bulk system and the larger bulk storage tank system. Typical hazards protected by carbon dioxide systems include printing presses, transformer vaults/electrical cabinets, open pits, dip tanks, rolling mills, ovens, coating machines, process equipment, exhaust and fume handling systems, flammable gas or liquid storage areas, generators, and inerting applications.



  • Documents
  • Features
Document Type  

Document Name Document Type
Language FileName Action
ANSUL Low Pressure Carbon Dioxide Fire Suppression Systems Product Overview (Rev. 02) Brochure/Flyer English F-2013162.pdf View
ANSUL Low Pressure Carbon Dixoide Fire Suppression Systems Product Overview (Rev. 02, A4 Format) Brochure/Flyer English F-2013162_A4.pdf View
ANSUL Mini-Bulk Low Pressure Carbon Dioxide Fire Suppression System Data Sheet (Rev. 08) Data/Specification Sheet English F-96161.pdf View
ANSUL Mini-Bulk Low Pressure Carbon Dioxide Fire Suppression System Engineering Specifications Specifications English F-2015029.pdf View


Additional system features:

  • Skid-mounted bases for easy handling with a forklift
  • Automatic or manual protection
  • Suitable for Class A, B, or C fires
  • UL listed/approved releasing control panel
  • FM Approved
  • CO2 storage tanks available in 1000 and 1500 lb (454 and 680 kg) capacities
  • Hydraulic flow program for piping design
  • Control valves operate on 24 VDC
  • The ASME coded inner vessel does not require regular intervals of hydrostatic testing
  • Design allows tanks to be filled in place
  • Liquid level and pressure gauges allow in-place service, eliminating the need to weigh individual cylinders
  • Meets NFPA 12 requirements
  • Distribution of CO2  accomplished through the discharge valve, selector valve(s) or a hand hose-line arrangement
  • Hand-hose lines can be supplied from a separate low pressure storage unit


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