Home Page - Koetter Fire Protection Koetter Fire Protection International
Koetter Fire Protection
Koetter Fire Protection
Koetter Fire Protection Company   |   Services   |   Products   |   FAQs   |   Locations & Contacts
Koetter Fire Protection
Koetter Fire Protection
Koetter Fire Protection Koetter Fire Protection

Ansul IND-X Industrial Fire Suppression System

Pre-Engineered, Stored Pressure Dry Chemical Fire Suppression

Ansul IND-X Industrial Fire Suppression System

The Ansul IND-X Industrial Fire Suppression System is a pre-engineered, stored pressure dry chemical type with a fixed nozzle distribution network. It is listed with Underwriters Laboratories, Inc. (UL). The system is capable of automatic detection and actuation and/or remote manual actuation. Additional accessories are available for shutting down electrical power to equipment and shutting down the flow of gas lines.

The detection portion of the fire suppression system allows for automatic detection by means of specifically rated mechanical fusible links or electric thermal detectors. The fire suppression system has capabilities for total flooding, local application tankside, and local application overhead.

Ansul IND-X Applications

The Ansul IND-X Industrial Fire Suppression System is an automatic fire suppression system using FORAY dry chemical agent for Class A, B and C fires and PLUS-FIFTY C dry chemical agent for Class B and C fires, stored under pressure using dry nitrogen gas at 450 psi (31.0 bar) at 70° F (21° C). The system is designed to protect a wide variety of hazards involving flammable liquids and gases, wood and paper, and energized electrical equipment.

The system can be used on most all hazards found in industrial settings. Some examples are:

  • Hazardous Storage Buildings
  • Dip Tanks
  • Paint Lockers
  • Flammable Liquid Storage Facilities
  • Stock Rooms
  • Printing Machines
  • Mixing Tanks
  • Electrical Motors
  • Pumps
  • Switchgear Rooms
  • Indoor Transformers
  • Wood Finishing Operations

Ansul IND-X Features

  • UL Listed
  • Complies with UL 1254 Standard, September 29, 1998
  • 25-lb., 50-lb., and 100-lb. size tanks available with FORAY dry chemical for total flooding applications
  • 25-lb. and 50-lb. size tanks available with PLUS-FIFTY C dry chemical for local application overhead and local application tankside
  • Three Basic Application Methods: Total Flooding, Local Application Tankside, Local Application Overhead
  • Mechanical or Electrical Detection
  • Low Temperature Total Flooding Application 20° F (29° C)
  • Multiple Total Flooding Options

The IND-X system can protect Class A, B, and C type hazards.The basic system consists of: Dry Chemical Agent Storage Tank(s), Distribution Piping and Nozzles, Control System and/or Releasing Device, Thermal or Fusible Link Detectors, and Accessories.

Ansul IND-X Industrial Fire Suppression System

Agent Storage Tanks

The IND-X system utilizes three sizes of tanks: 25-lb, 50-lb, and 100-lb. The tank assemblies consist of a factory-filled dry chemical agent tank and valve assembly. This assembly meets the appropriate Department of Transportation, (4BW500) and NFPA Standards. Each tank is finished in red enamel paint and contains either FORAY or PLUS-FIFTY C dry chemical agent pressurized with dry nitrogen. All three sizes are available with FORAY dry chemical and the 25-lb. and 50-lb. sizes are also available with PLUS-FIFTY C dry chemical.

A nameplate is affixed to the exterior and printed with contents, pressure and weight information. The nameplate is also color coded to specify either FORAY (yellow) or PLUS-FIFTY C (blue) dry chemical agent.

Distribution Piping and Nozzles

The distribution piping network is designed to properly distribute the dry chemical to the hazard areas. In the IND-X pre-engineered system; pipe sizes, maximum and minimum pipe lengths, and maximum and minimum number of pipe fittings are predetermined. There are 10 types of nozzles available for the IND-X system. Each type of nozzle has been designed and tested for specific applications and areas of coverage.

Releasing Device and/or Control System

The releasing devices consist of either an ANSUL AUTOMAN electric or mechanical release or an ANSUL AUTOMAN II-C releasing device. If no supervision is required, the releasing device can be connected directly to the mechanical fusible link detectors. All releasing devices contain an LT-20-R nitrogen cartridge which supplies the pressure to actuate the tank valve and allow the dry chemical to discharge.

An AUTOPULSE control system is designed to protect fixed fire hazards. The control system can automatically actuate the releasing device on the fire suppression system after receiving an input signal from any initiating device(s); i.e., manual pull station or thermal detectors. The control system incorporates an internal power supply, on-line emergency batteries, and solid state electronics. The AUTOPULSE control system can utilize the AUTOPULSE 442R control panel. Other approved control system panels are also available. Contact Koetter Fire Protection for details.

Fusible Link or Thermal Detectors

Fusible link detectors consist of three basic components: the bracket, linkage, and fusible link. The bracket holds the entire assembly to the mounting surface. The linkage is used to support the fusible link. The fusible link is designed to separate at a specific temperature and release the tension on the detection cable which will cause the mechanical ANSUL AUTOMAN release mechanism to actuate. The fusible links are available in six temperature ratings.

Rate compensating thermal detectors are factory preset. They are normally open, mechanical contact closure switches designed to operate at the set temperature rating or when the surrounding air temperature increases in excess of 40°F (4°C)/ minute. Electric thermal detectors are available in seven preset temperatures ranging from 140°F to 725°F (60°C to 385°C).


Accessories, such as pressure switches, micro-switches, alarm bells, pressure trips, selector switches, electric gas valves, mechanical gas valves, and flashing alarm lamps, are available for closing doors and dampers, warning personnel, shutting down HVAC equipment, shutting down elec-trical equipment, and shutting off gas lines. Accessories can be operated electrically or pneumatically.

For more information about Ansul IND-X™ Industrial Fire Suppression Systems, contact your nearest Koetter Fire Protection office today!

Custom Engineered Fire Systems . . .

. . are required by businesses in the data processing, communications, aviation, medical & art industries.

Koetter Fire Custom Engineered Fire Systems! Koetter Fire specializes in Semiconductor Facilities, Cleanrooms & Wet Bench fire protection, as well as all other industrial applications. Prevent the loss of costly equipment, irreplaceable data and information as well as business interruption.
"Custom Engineered Fire Systems & Rates"

TraceTek Leak Detection from Koetter Fire
TraceTek Leak Detection from Koetter FireDesigned primarily to detect water leaks in computer facilities, TraceTek has become the standard for uses such as hazardous chemical supply and recovery in semicon-ductor production facilities, hazardous fluid monitoring & the monitoring of the interstitial space between the inner and outer wall of double containment piping systems.   more about TraceTek
Fire Protection Systems Authorized Distributor

. . . of fire detection & suppression systems manufactured by the biggest and best industry names.

Our people are factory-trained in the design, installation, and service of these manufacturers' systems.
Fire Protection Systems Authorized Distributor
Koetter Fire Protection Offices: Dallas TX, Austin TX, Houston TX, San Antonio TX, Longview Texas
Copyright © 2021 Koetter Fire Protection LLC - All Rights Reserved.
Koetter Fire Protection