The „Workshop for CO₂ Fire Extinguishers” package contains all the necessary equipment for setting up or expanding a workshop specialising in the comprehensive maintenance of carbon dioxide fire extinguishers. PWENT offers an integrated solution for the entire workflow, meaning the customer does not need to procure the components separately — a single package, guaranteed equipment compatibility and a shared service infrastructure.
Specific features of CO₂ fire extinguisher maintenance
The maintenance of CO₂ fire extinguishers differs from that of dry powder extinguishers in several respects. CO₂ is stored under high pressure (250 bar test pressure), so the hydrostatic test and refilling require particular safety precautions. CO₂ must be recovered within a closed system — its release into the atmosphere should be avoided for climate protection reasons. The cylinder material (steel, ISO 9809-1) is susceptible to corrosion, so both internal and external cleaning are critical.
The steps in the workflow
(1) Valve removal: EL60 or EL60-ATEX. (2) CO₂ recovery: CO₂ transfer pump in a closed system. (3) Internal inspection: required in the case of a hydrostatic test. (4) Hydrostatic test: HT350 test bench set to a test pressure of 250 bar. (5) External cleaning and painting: RCP 270. (6) Refilling with CO₂: using a precision balance (BE series) to the specified quantity. (7) Refitting of valve and marking: EL60 + SPSN1492.
Contents of the package (may vary)
Standard: CO₂ filling pump-compressor, EL60 valve, HT350 pressure tester, RCP 270 cleaner, BE series industrial scales (for precise measurement of CO₂ fill volume), N7/15 electric pressure test pump, AIR5 pneumatic jack. Optional: SPSN1492 labeller, DRY dryer, mobile tool kit.
Dimensioning and on-site survey
The contents of the package can be tailored to the planned daily maintenance capacity. As CO₂ units account for a smaller share of the market than powder extinguishers, the CO₂ workshop package is generally designed for a lower capacity (5–30 units per day). Please request an on-site survey.
