Mon–Fri: 7am–3pm  |  Walk-In Service
📍 3428 Stanford Dr NE, Albuquerque NM|Cert. of Approval: MS-14 397477
Commercial Kitchen Standard

Wet Chemical Class K
Fire Extinguishers

Mandatory fire safety equipment for commercial kitchens, deep fryers, and high-temperature cooking environments. FSI provides certified annual tagging, recharges, and hydrostatic tests in Albuquerque.

Designed Specifically for Commercial Kitchen Fires

Class K wet chemical extinguishers are engineered specifically to combat high-temperature cooking fires involving vegetable oils, animal fats, and commercial fryers. Storing massive volumes of hot grease creates a unique hazard that dry chemical units cannot safely handle. Wet chemical extinguishers work through two processes:

  • Saponification: The potassium acetate/citrate agent reacts chemically with the hot fats, converting the cooking oil into a thick soapy foam layer that blocks oxygen supply.
  • Thermal Cooling: The fine liquid mist rapidly absorbs heat, dropping the grease temperature below its auto-ignition flash point to prevent explosive re-flash.

Under NFPA 10 and New Mexico local fire marshals, a Class K extinguisher is required to be mounted within 30 feet travel distance of any commercial cooking surface that uses deep fryers, griddles, or woks. This serves as a vital secondary backup to your building's automatic kitchen suppression system.

Compliance Rule: Class K fire extinguishers must only be used after or alongside the automatic hood suppression system has been activated. Ensure your staff is trained on this sequencing with our hands-on fire training classes.

Commercial restaurant kitchen cooking exhaust hood system

Class K Specifications & Compliance Timeline

Understanding testing, inspection, and maintenance intervals for liquid chemical kitchen equipment.

Specification NFPA 10 / FSI New Mexico Guidelines
Chemical Agent Liquid Potassium Acetate, Potassium Carbonate, or Potassium Citrate blend
Fires Fought Class K (combustible cooking oils, deep fryers, vegetable fats)
Visual Inspection Every 30 days (verify nozzle status, pressure gauge status, and security seals)
Annual Maintenance Physical inspection, weight confirmation, and tagging by a licensed fire service company
Hydrostatic Testing Every 5 years (wet chemical cylinder shell must undergo hydrostatic pressure testing)

Is Your Restaurant Kitchen Code-Compliant?

Ensure your Class K extinguishers are inspected, charged, and tagged on time. Schedule on-site restaurant service or walk-in to our shop today.

Schedule ServiceCall Now