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Viking Sprinkler System

Water Motor Alarms
  • Water Motor Alarms

Water Motor Alarms

  • Product’s code: Model F-2/G-2
  • Brand: Viking
  • Guarantee: 1 Year
  • Status: 1
  • Price: Please contact us!
  • Promotion Price: Please contact us!
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  • Product’s Introduction
  • Specifications
  • Accessories
  • The Viking water motor alarms are mechanical devices actuated by a flow of water. They are designed to sound a continuous alarm while a sprinkler system operates. An alarm is a required component of every sprinkler system having more than 20 sprinklers.


    + The water motor alarms are tapped 3/4” NPT on the inlet and 1” NPT on the drain outlet.

    + The water motor alarm package includes a drive shaft 16-3/4” (425 mm) long for walls 14” (356 mm) thick or less. A special extension shaft is available for walls up to 30-1/4” (768 mm) thick.

    + The package also includes the required 3/4” (20 mm) NPT strainer for installation on the alarm line.

    + Rated water working pressure of Model F-2 is 250 PSI (17.2 bar).

    Accessories: (order separately)

    + Extension Mounting Cup: Viking Part Number 05957B, Material: 14-Gauge Cold Rolled Steel, UNS-G10080, coated with black E-coat. The extension mounting cup is required when the wall thickness is less than 3” (76.2 mm). Refer to “INSTALLATION” instructions.

    + Closure Plate: For use with Model F-2 only, Viking Part Number 05820B, Material: 16-Gauge Galvanized Steel, UNS-G10080.

    + The closure plate is required when the Model F-2 Water Motor Alarm gong is mounted on an irregularly surfaced wall. It serves to prevent birds from entering the inside of the gong. The closure plate also serves as a mounting plate for sheet metal walls.

    + Special Extension Shaft: Viking Part Number 03312B, Material: Stainless Steel, UNS-S30400. The extension shaft is required when the F-2 or G-2 Water Motor Alarm is installed on walls from 14” (356 mm) to 30-1/4” (768 mm) thick.

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