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  • A photograph of front of a yellow 30 lb 09590 amerex model B570 class D sodium chloride fire extinguisher.
  • A chart showing the extinguishing capacity of the B570 for magnesium, sodium, potassium, and sodium-potassium alloy fires

Amerex Model B570 Class D Sodium Chloride Fire Extinguisher, 30 lb

Item #: 09590

Normal Availability: 1-2 business days

Product Description

Class D extinguishers are ideal for combustible metal fires. This Amerex model B570 extinguisher contains a special blended sodium chloride (NaCl) based dry powder extinguishing agent. Heat from the fire causes the agent to cake and form a crust, excluding air and dissipating heat from the burning metal. Metal fires involving magnesium, sodium, potassium, and sodium-potassium alloys can be successfully extinguished with this extinguisher. Zirconium, uranium, titanium, and powdered aluminum fires can have also been controlled and extinguished with this unique extinguisher.

This agent is also available in a 150 lb wheeled unit (item # 09582). Lithium fires require the Model 571 copper-powder extinguisher (item #09592) or a Lith-X extinguisher (item # 09451 or 09747).

The Amerex "soft flow" extension applicator (included) is particularly suited for fighting Class D fires. It keeps the operator's hands away from the extreme heat and prevents inhalation of toxic fumes caused by burning material. The easily controlled, even discharge provides a non-dispersing application of either agent. The applicator may be quickly detached to provide a straight stream of chemical where greater range, a narrow discharge pattern or a lobbing effect is required. The steel cylinder is coated with corrosion-resistant yellow paint. F.M. listed (ANSI/UL 1099/711).


  • Chrome-Plated Brass Valve
  • 6 Year Warranty
  • Stored Pressure Design
  • Dependable Drawn Steel Cylinders
  • Special corrosion resistant yellow
  • (Class D) color coded paint finish
  • All Metal Valve Construction
  • Large Loop Stainless Steel Pull Pin
  • Bar Coded and Bi-lingual Labels

Extinguishing capacity:

  • Magnesium Chips: 4 ft2 and/or 6 lbs. of metal
  • Sodium or Potassium Spill: 5 ft2 and/or 5 lbs.of metal
  • Sodium or Potassium Spill Depth Over 1/2”: 3 ft2 and or 6 lbs. of metal
  • Sodium Potassium Alloy Spill: 3 ft2 and/or 2 lbs. of metal

Amerex has a technical note with practical information for using such extinguishers. The Safety Data Sheet (SDS) for the extinguisher agent is also available.

Previous customers have recommended using the 09800 Heavy Duty Dolly Cart with this extinguisher as it can be rather heavy for some people.

Amerex Model # B570
Agent SUPER D (sodium chloride)
UL Rating N/A
Capacity 30 lb (13.6 kg)
Shipping Weight 53 lb (24 kg)
Height 35" (89 cm)
Width 13" (33 cm)
Depth 8" (20 cm)
Discharge time 24 seconds
Discharge range 3 to 6 feet (0.9 to 1.8 m)
Operating temperature range -40 to 120 °F (-40 to 49 °C)
Bracket Included Wall
Coast Guard Approved No
FM Approved Yes

The shipping weight of this item is 53 pounds (24 kg).  Given the heavy weight, a fixed shipping charge of $40 per extinguisher will be applied to your order at checkout which is valid only for ground shipment within the lower 48 US states. If you need rush delivery or delivery outside this area, you can contact us before ordering, otherwise, we will contact you with the actual freight costs before processing your order.


WARNING: This product can expose you to chemicals which are known to the state of California to cause cancer and reproductive harm. For more information go to

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