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Flammable storage cabinets (chemical safety cabinets)

Yellow, red and blue cabinets from 2 to 115 gallons, plus a double-lock model.

A flammable storage cabinet (also called a safety cabinet or chemical safety cabinet) is a double-wall metal cabinet for storing flammable and combustible liquids and chemicals, keeping solvent cans and bottles away from fire and heat sources. The US OSHA requirement for these cabinets is that in a 10-minute fire test, the internal temperature does not exceed 325 °F (about 163 °C), the joints stay sealed and the door stays closed.

The cabinets on this page are unbranded, in blue, yellow and red, in ten sizes from 2 to 115 gallons, with a double-lock model in yellow and blue. “Explosion-proof cabinet” is a common market name in Taiwan, but this page does not list explosion-proof, UL or FM test documents for these cabinets.

Source: US OSHA 29 CFR 1910.106, Flammable liquids.

Choosing a color

ColorCommon industry use
YellowFlammable liquids
RedCombustible liquids; also often paints and inks
BlueCorrosive chemicals

The OSHA regulation only requires a conspicuous “Flammable – Keep Fire Away” label; it does not specify the cabinet color. Colors are an industry convention. The three colors are the same price for the same size; choose by your plant’s classification rules.

Choosing a capacity

CapacityLitres
2 galabout 8 L
4 galabout 15 L
12 galabout 45 L
15 galabout 57 L
22 galabout 83 L
30 galabout 114 L
45 galabout 170 L
60 galabout 227 L
90 galabout 341 L
115 galabout 435 L

Capacity is the cabinet size. US OSHA limits one cabinet to 60 gallons (about 227 L) of Category 1 to 3 flammable liquids, or 120 gallons (about 454 L) of Category 4. A 90 or 115 gallon cabinet holding Category 1 to 3 liquids is still limited to 60 gallons. Regulations differ by location; follow the rules where your plant is. Litre values are converted at 1 US gallon = 3.785 L; if the product images show different values, please check with us.

Double-lock model

The double-lock cabinet is a separate model: double-wall cold-rolled steel body and double-lock door (labeled values), in yellow and blue, in eight sizes from 4 to 110 gallons. It costs more than the three-color model of the same capacity. The visible labeled differences are the model and the double lock; no other differences are labeled. Neither model lists third-party test documents.

Construction

OSHA describes metal cabinets built from at least No. 18 gage steel, double-walled with a 1½ in (about 38 mm) air space, riveted or welded joints, a three-point door latch, and a sill raised at least 2 in (about 51 mm) above the bottom to contain spills. This page does not list the wall construction and material, steel gage, air space, latch type, self-closing doors, grounding terminal or vents for the three-color model. If you need any of these, ask when you request a quote and we will check.

FAQ

Is a flammable cabinet the same as a “fireproof” or “explosion-proof” cabinet? In the Taiwan market, these names usually mean the same thing: a double-wall metal cabinet for flammable and combustible liquids. This page does not list explosion-proof, UL or FM test documents.

How much flammable liquid can one cabinet hold? US OSHA limits one cabinet to 60 gallons of Category 1 to 3 flammable liquids or 120 gallons of Category 4. Follow your local regulations.

Does a flammable cabinet have to be vented? Not necessarily. Cornell University and the University of Toronto guidance both state that flammable cabinets do not need venting. If not vented, the side vents should be sealed with metal plugs to keep fire protection. If vented, follow the cabinet manufacturer’s instructions and NFPA 30; the University of Toronto guidance says to vent to the outside.

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Tell us the colors, capacities and quantity. We can suggest a capacity mix. Request a quote →

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