Portable Amerex fire extinguisher with copper extinguishing agent, 30 lbs, type D (lithium fires), with wall hook

30 lb class D copper extinguisher for lithium fires

The 30 lb Amerex copper-agent portable extinguisher is designed for class D fires, particularly lithium fires. Developed for the US Navy, it is ideal for laboratories, lithium-battery facilities and workshops handling this metal. It comes with a wall hook.

The extinguishing agent is a copper-based powder. This copper agent is the reference for lithium-metal fires, where conventional class D agents are less effective. The cylinder is steel with a weather-resistant baked polyester enamel finish. This Amerex extinguisher is easy and safe to use, thanks to illustrated instructions and a wand that helps apply the powder effectively; the agent forms a crust over the flames and smothers them.

Specifications of the class D extinguisher

• Agent type: the extinguishing agent is a copper-based powder.

• Fire class: class D (combustible metals).

• Capacity: 30 lb.

• Approval: FM approved.

• Discharge range: 3 to 6 ft (0.9 to 1.8 m).

• Discharge time: 28 seconds.

• Operating temperature: -40°C to 49°C (-40°F to 120°F).

• Weight: 53 lb (24 kg).

• Material: steel.

• Manufacturer: Amerex.

Fire classes and safety warnings

This Amerex copper-agent extinguisher is designed exclusively for class D fires, specifically lithium or lithium-alloy fires. The copper extinguishing agent was specially developed by the US Navy to fight lithium fires.

• Class D only: do not use on class A (wood, paper, fabric), B (flammable liquids), C (electrical) or K (cooking oils and greases) fires.

• Intense heat: class D fires release intense heat; do not disturb the fuel until it has cooled.

• After the fire: promptly clean any metal parts that contacted the agent, as it can be corrosive.

Extinguisher maintenance and inspection

A class D extinguisher only protects you if it is kept in good condition. Regular maintenance ensures it will work the day you need it.

• Monthly visual inspection: check the gauge, pin, seal, applicator wand and that the steel cylinder is free of damage or corrosion.

• Annual servicing: have the extinguisher inspected yearly by a certified technician (NFPA 10 / local regulations).

• Recharge: any extinguisher that has been used, even partially, must be recharged immediately by a qualified shop.

• Hydrostatic test: the cylinder must undergo periodic pressure testing per the standard.

• After use: promptly clean any metal parts that came into contact with the agent, as it can be corrosive.

FAQ about the class D extinguisher

What is a class D fire?

A class D fire is a combustible-metal fire. It specifically fights lithium and lithium-alloy fires. It requires a specific agent and must never be replaced by an ordinary extinguisher.

How is the applicator wand used?

The wand (soft-flow applicator) allows a gentle, controlled application of the powder, which forms a crust that smothers the fire, while keeping the operator away from the heat.

Why a copper agent for lithium?

The copper powder adheres to molten lithium and smothers it effectively; it was developed by the US Navy specifically for this type of fire.

Complete fire protection and signage

For complete fire protection, equip each at-risk area with an extinguisher matched to its fire class, mount it correctly and clearly mark it. Sylprotec offers the full range of portable extinguishers, brackets and cabinets to build a coherent setup.

Sylprotec also offers an inspection and maintenance service for portable extinguishers in the greater Montreal area, plus a full range of fire-protection signs to reduce reaction time.

Suggestions and accessories for your class D extinguisher

See also a sodium-chloride extinguisher for metal metals fires (EXD570), a transport cart for heavy extinguishers (EXCAD), a rugged wall hook (CUNI20), an ABC dry powder 20 lb (EXABC20), an ABC size 5 lb (EXABC5), a semi-recessed cabinet (EC7), a hammer with chain for the cabinet (ECM) and an extinguisher-location sign (EI700). Under "Accessories" at the bottom of the page.

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