WATER MOTOR GONG
FM Approved hydraulically driven mechanical alarm bell designed to provide an immediate audible alert when a fire sprinkler system activates. Requiring no electrical power or external lubrication, the Model GA is a reliable, self-contained alarm solution for wet pipe and deluge sprinkler systems.
When water flows through the alarm or deluge valve, it enters the motor housing via a nozzle, driving the impeller and striker arm to strike the aluminium gong — producing a loud, continuous alarm signal. Constructed from corrosion-resistant aluminium alloy, it is built to withstand demanding environments.
Key Specs:
- Max Working Pressure: 12.3 Kg/sq.cm (175 PSI)
- Min. Activation Pressure: 0.35 Kg/sq.cm (5 PSI)
- Connection: Inlet 3/4″ BSPT (3/4″ NPT) | Drain 1″ BSPT (1″ NPT)
- Gong Diameter: 205mm (8″) | Gong Depth: 50mm (2″)
- Finish: Epoxy red powder-coated
- Weight: 3.0 Kg
- Mounting: Type A (surface) & Type B (through-wall)
Key Features: No electrical supply required, lightweight non-metallic impeller and drive shaft, corrosion-resistant aluminium alloy construction, and suitable for both indoor and outdoor installation.
Must be installed in accordance with NFPA 13 requirements. A 3/4″ strainer in the alarm line is required to protect the nozzle from clogging.
Documents and Resources
- Size Guide
- Reviews (0)
| size | chest(in.) | waist(in.) | hips(in.) |
|---|---|---|---|
| XS | 34-36 | 27-29 | 34.5-36.5 |
| S | 36-38 | 29-31 | 36.5-38.5 |
| M | 38-40 | 31-33 | 38.5-40.5 |
| L | 40-42 | 33-36 | 40.5-43.5 |
| XL | 42-45 | 36-40 | 43.5-47.5 |
| XXL | 45-48 | 40-44 | 47.5-51.5 |
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