Dry Chemical Piped

The Dry Chemical Piped Fire Suppression Systems are designed to provide full-time fire protection in high-risk areas where large, potentially disastrous fires could occur. They use proven technology for fast knock down of the toughest flammable liquid and gas fires and provide a means of detection and suppression for complex hazards that are too difficult and inaccessible for manual means of firefighting.

Typical applications include petroleum and petrochemical loading racks, refinery processing equipment, product transfer and storage areas and offshore platforms; marine tanker decks, machinery spaces and loading docks; paint spray booths, dip and quench tanks, warehouses, hazardous materials storage buildings, machinery lubricating systems, and flammable liquid storage areas; and many other settings. For large industrial applications, large fixed nozzle piped systems provide up to 3000 lb. (1360.8 kg) of dry chemical extinguishing agent.

Dry chemical piped system nozzles are designed for a particular application method and discharge pattern. Most are available in various sizes and flow rates.

“D” Nozzle — a widely dispersed and diffused discharge pattern; use for total flooding

“C” Nozzle — elliptical or circular discharge pattern; local application overhead protection

“S” Nozzle — similar discharge and protection as “C” nozzle but with a longer range; use where higher air velocities are encountered

“F” Nozzle — discharges in a thin, flat, semi-circular pattern; local application tankside

“T” Nozzle — flat discharge pattern covering 160 in. (4064 mm) wide; use for high flow rates and ranges of agents

“X” Nozzle — discharges at a high velocity and flow rate in a conical pattern; local application or total flooding

  • Documents
  • Options
Document Type  

Document Name Document Type
Language FileName Action
Dry Chemical Fixed Pipe Fire Suppression Systems General Specifications Data Sheet (Rev. 03) Data/Specification Sheet English F-7723.pdf View
Dry Chemical Piped Systems Accessories Data Sheet (Rev. 04) Data/Specification Sheet English F-7722.pdf View
ANSUL Dry Chemical Fixed Piped Fire Suppression Systems Discharge Nozzles Data/Specification Sheet (Rev. 03) Data/Specification Sheet English F-7721.pdf View
ANSUL PLUS-FIFTY C Dry Chemical Suppressing Agent Data Sheet (Rev. 06) Data/Specification Sheet English F-7548.pdf View
ANSUL Technical Bulletin - Dry Chemical Clean-Up Procedures (Rev. 01) Technical Bulletins English F-97146.pdf View
ANSUL Technical Bulletin - Nitrogen Cylinder Valve Pressure Gauge Replacement Procedure (Rev. 01) Technical Bulletins English F-87151.pdf View
ANSUL Technical Bulletin - Hydrostatic Retest Requirements for ANSUL Pressure Vessels - Portables, Wheeled Units and Pre-Engineered Pressure Vessels (Rev. 12) Technical Bulletins English F-81301.pdf View
ANSUL Technical Bulletin - Mixing of Different Types of Dry Chemical Agents (Rev. 02) Technical Bulletins English F-81160.pdf View
ANSUL Technical Bulletin - Use and Refilling of ANSUL Gas Cartridges (Rev. 03) Technical Bulletins English F-80195.pdf View
ANSUL Technical Bulletin - Hydrostatic Testing For Large Dry Chemical Containers (Rev. 02) Technical Bulletins English F-76111.pdf View
ANSUL Technical Bulletin - Replacement Components and Service - Genuine ANSUL replacement components recommended for installation on ANSUL products (Rev. 02) Technical Bulletins English F-8922.pdf View
ANSUL Technical Bulletin - Checking Nitrogen Cylinder Pressures With Temperature Correction Chart (300 Ft³ (8.49 m³) and 400 Ft³ (11.32 m³) Cylinders) (Rev. 03) Technical Bulletins English F-8834.pdf View
ANSUL Technical Bulletin - Checking Nitrogen Cylinder Pressures with Temperature Correction Chart (23 ft³, 55 ft³, 110 ft³, 220 ft³ Cylinders) (Rev. 03) Technical Bulletins English F-8833.pdf View
ANSUL Technical Bulletin - Re-Use of Dry Chemical Agents (Rev. 01) Technical Bulletins English F-8202.pdf View
ANSUL Technical Bulletin - Fire Protection for Metal Alkyls (Rev. 02) Technical Bulletins English F-8086.pdf View


Agent Options

These systems use ANSUL dry chemical extinguishing agents and dry powder agents such as:

FORAY—A monammonium phosphate-based dry chemical for use on Class A, B, and C fires.

PLUS-FIFTY C—A sodium bicarbonate-based dry chemical for use on Class B and C fires.

Purple-K—A potassium bicarbonate-based dry chemical that is the most effective ANSUL dry chemical agent for Class B and C fires.

MET-L-X—A sodium chloride-based dry powder for use on most Class D fires involving combustible metals such as magnesium. (C-Models only.)

MET-L-KYL—A sodium bicarbonate-based dry chemical and activated absorbents specially designed for suppressing Class D fires involving most metal alkyls (pyrophoric liquids that ignite on contact with air) such as triethylaluminum. (C-Models only.)

LITH-X—A graphite-based dry powder blended for use on lithium fires. LITH-X agent is also effective on fires involving high melting point metals such as zirconium, titanium, and sodium potassium. (C-Models only.)

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